Oferty pracy Backend Developer299+ Ofert

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Empower cloud-native innovation — shape the future of backend development with cutting-edge technology! Krakow-based opportunity with hybrid work model (2 days in-office / 3 days remote). As a Senior Cloud-Native Java Developer, you will be working for our client in the financial industry, designing and building scalable backend services and cloud-native applications. You’ll focus on leveraging Java, Kubernetes, and cloud platforms to deliver robust, secure, and efficient solutions that power digital transformation and enhance operational excellence. Your main responsibilities: Develop and maintain backend services using Java (Spring Boot or similar frameworks). Design and deploy microservices on Kubernetes clusters. Implement CI/CD pipelines and automate deployments on cloud platforms (AWS, Azure, GCP). Monitor, troubleshoot, and optimize application performance. Ensure security and compliance standards are met. Collaborate with cross-functional teams to deliver end-to-end solutions. You're ideal for this role if you have: 4+ years of experience in Java development and microservices architecture. Hands-on experience with Kubernetes and containerization (Docker). Familiarity with cloud platforms and infrastructure-as-code tools (e.g., Terraform, Helm). Experience with CI/CD tools (Jenkins, Ansible). Strong analytical and troubleshooting abilities. It is a strong plus if you have: Certifications in cloud platforms or Kubernetes. Language Required for the role: Fluent English command. Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role.

Full TimeRemotedirectBackend
PLN 23,100 - 28,350/month1 month ago

Java Developer

UniCredit Polska · Poland - Warsaw - HQ

What we do? UniCredit in Poland is part of one of the largest banks in Europe, serving over 15 million Clients, including one million businesses. We are building a new banking model that combines the speed and appeal of a fintech with the strength and stability of an international financial institution. We draw on 150 years of experience and the unique expertise of our teams, acting as the Group’s pan-European innovation hub.We are creating ultra-fast and transparent banking with an “all-in-one” application and new opportunities for all Clients - individual, business, and corporate. We provide full omnichannel service thanks to a network of flagship branches in key Polish cities and our Support Center.Our greatest value is our People - a Team of creative experts who thrive in a dynamic and innovative environment. We focus on collaboration, engagement, and achieving ambitious goals.We are looking for a Java Developer  to join us at this pivotal moment, share our vision, and help shape the future of European banking. What you will be doing? As a Backend Developer, you will work on transformational projects within our Banking as a Service (BaaS) model. You should have excellent organisation and problem-solving skills. If you have hands-on experience in software development and you are a great communicator, we’d like to meet you.Your goal will be to develop high-quality software that is aligned with user needs and business goals. Our Cloud Native approach is based on Google Cloud Platform’s cutting-edge technologies. According to the platform’s requirements, all apps are expected to meet various requirements:Design and Implementation: Creating advanced, scalable applications using the Java programming language.Code Review: Reviewing and evaluating code written by other developers, providing constructive feedback.Troubleshooting: Analyzing and fixing bugs, as well as optimizing application performance.Architecture Planning: Collaborating with the team to design the structure of applications and making technical decisions.Mentoring: Supporting and training less experienced team members.Technical Documentation: Creating and updating project-related and code-related documentation. Skills you should have You are someone who is passionate about solving problems, making things well explained and documented, someone who can use data to answer questions, someone who is known for thinking creatively and has strong analytical skills.You bring experience and knowledge in following areas:Minimum 5 years of commercial Java programming experience Hands-on with Hibernate, Spring, Spring Boot, REST API, Microservices, Web ServicesPractical knowledge of MavenGood knowledge of message queues - Kafka, PubSubUnderstanding of cloud solutions (Google / Azure / AWS) -  GCP preferredGood knowledge of SQLGood knowledge of GitUnderstanding of cloud orchestration tools like Docker, Kubernetes, Helm. We will teach you how to use and develop those technologies if you don't have hands-on experienceExperience in designing, developing, and implementing BPMN 2.0 based on workflows using one of the following: Flowable, Camunda, Activiti, jBPM or others would be a huge plusExperience in integrating BPM systems with other applicationsExperience with multithreaded programming and distributed systemsExperience in application monitoring (including monitoring tools like ELK)Curiosity to go beyond own expertise domain and appetite to learn new things and approaches from othersCollaborative mindset is inevitable on this project as you will be part of a teamGood English speaking and writing skills What we offer You will get an opportunity to work in an innovative, digital bank applying state of the art approaches and technologies.You will be provided an Individual Development Budget, dedicated to enhancing your professional skills.If your role permits, we also offer flexible work location.We care for our colleagues’ well being, therefore we cover psychological consultations if you ever feel you need such support. Aion bank account without fee. We co-sponsor your Multisport card and cover 50% of its cost. You will work on computer equipment that delivers the best user experience — Apple MacBook. Our office in Warsaw offers healthy snacks throughout the day. Our process We keep our recruiting process simple. Step 1: Talk with one of our Recruiters about your to date experiences and ambitionsStep 2: Meet with your future colleagues for a technical interview Step 3: Meet with your Team Manager to discuss how we fit each other Our note to you Diverse teams really are the best teams. Research shows that some candidates may hesitate to apply for a job unless they meet every requirement. If you are excited about working with us, we encourage you to apply - even if you're not 100% sure. We are interested in getting to know you and learning about what you bring to the table.Please note that we may close a job posting early if we receive a large number of exceptional applications.Good luck!

Full TimedirectBackend
Salary not disclosedApr 16, 2025

BPM / Java Developer

UniCredit Polska · Poland - Warsaw - HQ

What we do? UniCredit in Poland is part of one of the largest banks in Europe, serving over 15 million Clients, including one million businesses. We are building a new banking model that combines the speed and appeal of a fintech with the strength and stability of an international financial institution. We draw on 150 years of experience and the unique expertise of our teams, acting as the Group’s pan-European innovation hub.We are creating ultra-fast and transparent banking with an “all-in-one” application and new opportunities for all Clients - individual, business, and corporate. We provide full omnichannel service thanks to a network of flagship branches in key Polish cities and our Support Center.Our greatest value is our People - a Team of creative experts who thrive in a dynamic and innovative environment. We focus on collaboration, engagement, and achieving ambitious goals.We are looking for a BPM / Java Developer  to join us at this pivotal moment, share our vision, and help shape the future of European banking. What you will be doing? As a BPM / Developer, you will work on transformational projects within our Banking as a Service (BaaS) model. You should have excellent organisation and problem-solving skills. If you have hands-on experience in software development and you are a great communicator, we’d like to meet you.Your goal will be to develop high-quality software that is aligned with user needs and business goals. Our Cloud Native approach is based on Google Cloud Platform’s cutting-edge technologies. According to the platform’s requirements, all apps are expected to meet various requirements:Design and Implementation: Creating advanced, scalable applications using the Java programming language.Code Review: Reviewing and evaluating code written by other developers, providing constructive feedback.Troubleshooting: Analyzing and fixing bugs, as well as optimizing application performance.Architecture Planning: Collaborating with the team to design the structure of applications and making technical decisions.Mentoring: Supporting and training less experienced team members.Technical Documentation: Creating and updating project-related and code-related documentation. Skills you should have You are someone who is passionate about solving problems, making things well explained and documented, someone who can use data to answer questions, someone who is known for thinking creatively and has strong analytical skills.You bring experience and knowledge in following areas:Experience in designing, developing, and implementing BPMN 2.0 based on workflows using one of the following: Flowable, Camunda, Activiti, jBPM or others would be a huge plusExperience in integrating BPM systems with other applicationsCommercial Java programming experience Hands-on with Hibernate, Spring, Spring Boot, REST API, Microservices, Web ServicesPractical knowledge of MavenGood knowledge of message queues - Kafka, PubSubUnderstanding of cloud solutions (Google / Azure / AWS) -  GCP preferredGood knowledge of SQLGood knowledge of GitUnderstanding of cloud orchestration tools like Docker, Kubernetes, Helm. We will teach you how to use and develop those technologies if you don't have hands-on experienceExperience with multithreaded programming and distributed systemsExperience in application monitoring (including monitoring tools like ELK)Curiosity to go beyond own expertise domain and appetite to learn new things and approaches from othersCollaborative mindset is inevitable on this project as you will be part of a teamGood English speaking and writing skills What we offer You will get an opportunity to work in an innovative, digital bank applying state of the art approaches and technologies.You will be provided an Individual Development Budget, dedicated to enhancing your professional skills.If your role permits, we also offer flexible work location.You and your closest family will be covered with VIP-level private medical care which includes dental treatment and a hospitalisation package. We care for our colleagues’ well being, therefore we cover psychological consultations if you ever feel you need such support. Aion bank account without fee. We co-sponsor your Multisport card and cover 50% of its cost. You will work on computer equipment that delivers the best user experience — Apple MacBook. Our office in Warsaw offers healthy snacks throughout the day. Our process We keep our recruiting process simple. Step 1: Talk with one of our Recruiters about your to date experiences and ambitionsStep 2: Meet with your future colleagues for a technical interview Step 3: Meet with your Team Manager to discuss how we fit each other Our note to you Diverse teams really are the best teams. Research shows that some candidates may hesitate to apply for a job unless they meet every requirement. If you are excited about working with us, we encourage you to apply - even if you're not 100% sure. We are interested in getting to know you and learning about what you bring to the table.Please note that we may close a job posting early if we receive a large number of exceptional applications.Good luck!

Full TimedirectBackend
Salary not disclosed8 months ago

Freelance Backend Developer

Flying Bisons · Remote job

Flying Bisons is a leading Digital Consulting & Delivery company based in the heart of Europe, Warsaw. Our mission is to help our clients to Unleash Digital Potential™. We discover, define, design, and develop world-class digital products that drive business results for our clients, shaping digital experiences for millions of people around the world.We stand out due to our end-to-end process that allows us to approach each and every challenge with confidence that we can deliver the best results. Our expertise includes Research, Digital Strategy, Branding, Content (Written, Photos, Videos), Product Design, Web & Mobile Development, Data Analytics & AI.Join our 120-people team to co-create industry-defining products and heart-racing experiences for the biggest brands (Mercedes AMG, IKEA, KFC, eObuwie, Żabka, Sanofi, Zain) and disruptive startups (like Booksy, Nethone, Telemedi, or DevSkiller)!We're building a curated network of talented freelance Backend Developers that we can call upon for existing and future projects. When you apply to join our freelancer base, you will be evaluated and kept on file. You may not be contacted immediately. When a project matches your specific expertise, you’ll be invited to participate and can choose to accept or decline based on your availability. If you're interested in becoming part of our talent pool, please submit your CV. We’ll get in touch as soon as an opportunity aligned with your skills arises.Are you self-driven, and dependable professional? If so, we look forward to hearing from you!Contract type: B2BWhat skills and experience do we expect?Your Profile & Skills RequiredYou have 2+ years experience in web developmentYou know PHP (including Symfony framework) & SQLYou have experience in developing RESTFull APIsYou have a good understanding of business and technologyYou know the basics of Docker & GitYou can optimize the applicationYou want to learn and develop by implementing challenging and ambitious projectsYou communicate in English (B2+ level) and PolishNice to HavesExperience in Sulu CMS or Sylius frameworkPHPUnit, Behat, PHPSpecExperience in working with the cloud environmentCI / CD experienceDomain-Driven Design and CQRS

Full TimeRemotedirectBackend
Salary not disclosed2 months ago

AI is moving fast. Most teams know it’s powerful — but very few know how to actually use it effectively.We’re looking for someone who can build real systems with AI — not just use tools.This role is for developers who enjoy solving problems, building backend logic, and using AI as a multiplier, not a dependency.Location: Fully RemoteYour Mission: Day to Day ResponsibilitiesYou’ll work on building AI-powered systems that solve real business problems — combining code, APIs, and AI tools to create reliable, scalable solutions.Build and deploy AI-powered workflows and backend systemsDesign solutions that combine APIs, scripts, and AI agentsWork with internal teams to understand problems and turn them into technical solutionsPrototype quickly — but also improve and harden systems over timeOptimize solutions (e.g., reduce token usage, improve performance)Debug and adapt systems when things don’t work as expectedDocument your work and explain your thinking clearlyYour Toolbox: Skills to be SuccessfulSolid programming fundamentals (Python preferred)Comfortable working with APIs and building integrationsAbility to build solutions without relying entirely on AI toolsStrong problem-solving skills — you can break down and reason through problemsClear communication — you can explain what you built and whyCuriosity and ownership — you like figuring things out, not just following instructionsStrong signals (highly valued)Experience building backend systems, scripts, or APIsProjects where you combined code + AI (not just prompting tools)Understanding of how systems work under the hood (not just using them)Experience debugging or improving existing systemsNice to have (but not the focus)Experience with AI tools (ChatGPT, Claude, Cursor, etc.)Exposure to automation tools (Zapier, Make, n8n)Data pipelines, scraping, or workflow automationYour Perks: What's in it for youWork on real systems used by operating businessesLearn how to combine software engineering + AI in productionHigh ownership — your work ships fast and mattersMentorship from experienced developersFully remoteWhy Adaptive Teams?At Adaptive Teams, we don’t just fill positions – we create pathways to success. Whether you’re a seasoned pro or just starting out, we’re here to help you grow, innovate, and make an impact. If you’re looking for exciting opportunities and, a team that’s as passionate as you are, this is the place to be.What to Expect from Our Application Process?Once you apply, you’ll receive an email guiding you through the next steps, including an assessment tailored to the role. Be sure to check your inbox (and your spam folder, just in case) for further instructions.We understand your time is valuable, so we strive to keep the assessment process under 45 minutes whenever possible, though some roles may require a slightly longer time investment.Once selected, you’ll have the chance to schedule your first interview with our team. We aim to make the process as smooth and transparent as possible, so you’ll always know where you stand.

Full TimeRemotedirectBackend
Salary not disclosed4 weeks ago

Junior/Mid Java Developer

7N Sp. z o.o. · Poland

Published: 6 days ago Location: Warsaw, Poland Remuneration: 15 120 - 18 480 PLN (90 - 110 PLN/h) + VAT Share via e-mail Wages may vary depending on experience and qualifications of a given candidate Zadania Implementacja nowoczesnych rozwiązań w sektorze ubezpieczeniowym, Budowa i rozbudowa systemów w rozproszonej architekturze mikrousługowej dla systemów zgłaszania i obsługi szkód Usprawnianie obsługi wybranych procesów biznesowych Zapewnienie właściwej jakości wytwarzanego oprogramowania dzięki rozwijaniu piramidy testów automatycznych Wykonywanie i odbieranie code review Udział w wydarzeniach scrumowych zwinnego zespołu Codzienna współpraca w zgranym zespole chętnie dzielącym się wiedzą i zorientowanych na wytwarzanie kodu wysokiej jakości w niebanalnych rozwiązaniach Oczekiwania Minimum 3 lata doświadczenia na stanowisku Java Developera Dobra znajomość Spring, Hibernate, Spring Boot i Spring Cloud Dobra znajomość języka SQL (preferowane Oracle lub PostgreSQL) Znajomość narzędzi: git, maven Znajomość frameworków do pisania testów jednostkowych Znajomość paradygmatów Functional Programing i Object Oriented Programing Mile widziana znajomość następującyh technologii: Docker, K8S, helm, Kafka, Rabbit MQ, ElasticSearch Oferujemy Stałe wsparcie osobistego agenta , dbającego o Twoją ciągłość projektową, kontakt z klientem, niezbędne formalności, komfort pracy oraz rozwój, Consultant Development Program – doradztwo w planowaniu rozwoju w oparciu o najnowsze trendy i potrzeby rynku IT, obejmujące m.in. konsultacje z agentami i mentorami rozwoju , Dostęp do 7N Learning & Development – platformy rozwojowo-edukacyjnej z webinarami, biblioteką artykułów i raportów branżowych oraz regularnymi zaproszeniami na jednorazowe i cykliczne wydarzenia rozwojowe – techniczne, biznesowe oraz life-stylowe, Spektakularne eventy integracyjne , zarówno dla Ciebie (np . coroczny wyjazd Kick-Off , imprezy świąteczne czy sportowe Letnie Igrzyska), jak i dla Twoich bliskich (np. pikniki rodzinne), Rozwój zawodowy nie tylko podczas projektu – możesz zaangażować się w przekazywanie wiedzy innym w ramach oferty 7N Services kierowanej do klientów 7N, Relacje i dostęp do wiedzy n ajbardziej doświadczonych ekspertów IT na rynku – średni staż zawodowy naszego Konsultanta w Polsce to ponad 10 lat, Pakiet benefitów zaplanowany od A do Z , czyli dofinansowanie do opieki medycznej, ubezpieczenia na życie, karty sportowej dla Ciebie i Twoich bliskich, a także zniżki do sklepów w Polsce i za granicą. O 7N Ciągłe poszukiwanie projektów, trudne negocjacje stawek, brak wsparcia w rozwoju – brzmi znajomo? W 7N zyskujesz nie tylko stabilność kontraktów, ale też zaangażowanie osobistego opiekuna dbającego o Twój komfort zawodowy i stały dostęp do inicjatyw rozwojowych. Naszym celem jest zapewnienie Ci stabilnej i komfortowej współpracy, która przyczyni się do sukcesu Twojego jako eksperta IT oraz naszych klientów. Budujemy trwałe relacje, bazując na skandynawskich wartościach i 30-letnim doświadczeniu w tworzeniu rozwiązań IT dla ponad 200 organizacji. Person responsible for this recruitment process: Hi! I'm Anna Knyzio Recruitment Specialist +48 728 901 078 Warsaw, Poland

Full TimedirectBackend
PLN 18,480 - 18,480/month3 weeks ago

Java Developer

B2B Network · Poland

The STP Lending Manager application is a brand‑new greenfield initiative, offering a rare opportunity to shape a system from the ground up. The project is in its early stages and is backed by a dedicated and highly engaged business team, ensuring short feedback loops and clear, well‑prioritised requirements.   This is a pure backend role, focused on building a robust and scalable Java platform using Spring Boot. The solution will integrate with multiple surrounding systems through REST APIs and Kafka‑based event streaming, playing a central role in the wider lending ecosystem. JPA is used for persistence, with a strong emphasis on clean architecture, maintainable code, and clear ownership.   We expect team members to be comfortable leveraging AI‑assisted development tools, such as GitHub Copilot, to improve productivity, code quality, and flow efficiency in day‑to‑day development.   The team works in an Agile setup, characterised by high levels of collaboration, transparency, and continuous improvement. English is the primary working language, and communication is a key success factor. Developers work closely with Business SMEs and the Product Owner, enabling fast clarification, shared understanding, and genuinely collaborative solution design rather than “over‑the‑wall” delivery.   This role suits someone who enjoys building systems from scratch, working close to the business, and influencing both technical and solution-level decisions in a modern backend environment.   Must-have knowledge and experience Java 21+ Spring boot JPA MavenLiquibase for database change versioning Nice-to-have knowledge and experience Cucumber for testing

Full TimedirectBackend
Salary not disclosed2 weeks ago

Backend Engineer - Wallets (100% Remote)

Tether Operations · Remote job

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the jobIn this pivotal role, you will leverage your expertise to build robust, scalable, and secure backend solutions that contribute to Tether’s mission of pioneering a decentralized future in digital finance. This is an opportunity to take on formidable challenges and make a significant impact on our cutting-edge, global platform.ResponsibilitiesInnovative Solutions: Contribute to the creation of groundbreaking projects, utilizing agile methodologies and innovative technologies to create incredible platforms.Scalability: Ensure backend services remain effortlessly responsive and real-time, accommodating the platform's continual growth and evolving user base.Security: Uphold the highest security standards in all backend processes and services to safeguard our users' assets and data. Node/JavaScript Expertise: Very proficient in Node.js and JavaScript programming.Microservices Architecture: Familiarity with microservices architecture for scalable applications.Complex Platform Development: Experience in actively developing complex platforms.Peer-to-Peer Technologies: Understanding of Peer-to-Peer technologies.Database Interaction: Proficiency in interacting with databases such as MySQL and MongoDB.Quick Learner: Ability to quickly adapt and learn new technologies.Security Awareness: Strong understanding and experience implementing best security practices.Nice to Have:Blockchain Integration: Experience with integrating blockchain technologies.High-Availability Concepts: Experience with high-availability concepts and best practices for ensuring system reliability.Additional Programming Skills: Knowledge of Ruby, Rust, or C++ is advantageous.Technological Proficiency: Familiarity with message queues (Redis), caches, and job queuesImportant information for candidatesRecruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.ioWe will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.When in doubt, feel free to reach out through our official website.

Full TimeRemotedirectBackend
Salary not disclosed2 months ago

Senior Python Developer (UC)

Tiugo Technologies · Remote job

Uploadcare is a leading file upload and delivery platform, enabling developers worldwide to upload, store, optimize, and deliver digital content for applications and websites via a powerful suite of APIs. The company was founded in 2011 by experienced web development and image processing enthusiasts who encountered problems with uploading and managing files and decided to create an all-in-one solution that worked at scale. 13 years later, Uploadcare has grown rapidly, garnering clients like PandaDoc, Buffer, Zapier, and more.Uploadcare is part of Tiugo Technologies, a suite of market-leading API-first developer platforms focused on content creation and digital collaboration, including CKEditor, TinyMCE, and ButterCMS. Together, our products have powered millions of software applications and websites. Enabling content and communication in everything from Microsoft to NASA, you might not know our name, but you’ve probably used our software.To learn more about Uploadcare, visit uploadcare.comYour Role:As an important member of our globally distributed backend team, you will have the freedom to innovate and the support to excel. Your expertise will drive the creation and support of robust APIs for file uploading and management, ensuring our platform remains at the forefront of efficiency and reliability.If you are passionate about developing cutting-edge solutions and thrive in a dynamic, collaborative environment, we would love to hear from you.Key Responsibilities:Develop and maintain file platform ensuring it meets our high standards for performance and reliability.Integrate with third-party services enhancing functionality and user experience.API development and support for file uploading and management, enabling efficient and secure data handling.Build infrastructure for webhooks and events ensuring our platform can efficiently process and respond to external signals.Work closely with other developers, product managers, and stakeholders across the organization to deliver on project goals and contribute to the overall strategy.Continuously seek ways to improve our platform and processes, embracing new technologies and methodologies to drive innovation. To be successful in this role you need the following:5+ years of experience in Python backend development.Strong understanding of asynchronous programming in Python (async/await, uvloop).Experience with performance optimization and profiling.Experience with high-performance, distributed systems.Expertise in Docker containerization and microservices architecture.Experience with version control systems (Git).Knowledge of HTTP protocols and RESTful APIs.Nice-to-haves:Deep understanding of image formats, compression, and optimization techniques.Knowledge of video processing and transcoding.Understanding of caching mechanisms and CDN architecture.Understanding of computer vision concepts.Experience with memory-intensive applications and optimization.Proficiency in working with AWS services, especially S3 and MediaConvert.Familiarity with message queuing systems (Kafka).Understanding of CI/CD practices.Why join us:Annual financial bonus depending on the company’s performance.Flexible schedule and fully remote work.Professional development resources.LinkedIn Learning access.Extra leave for Tiugo Day - our company’s foundation day and your birthday.English lessons with a native speaker and an online language platform where you can learn English, Spanish, and German.Access to a mental health and well-being platform with 24/7 dedicated psychological support.2 weeks of paid parental leave for our contractors.

Full TimeRemotedirectBackend
Salary not disclosed1 week ago

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the jobIn this pivotal role, you will leverage your expertise to build robust, scalable, and secure backend solutions that contribute to Tether’s mission of pioneering a decentralized future in digital finance. This is an opportunity to take on formidable challenges and make a significant impact on our cutting-edge, global platform.ResponsibilitiesInnovative Solutions: Contribute to the creation of groundbreaking projects, utilizing agile methodologies and innovative technologies to create incredible platforms.Scalability: Ensure backend services remain effortlessly responsive and real-time, accommodating the platform's continual growth and evolving user base.Security: Uphold the highest security standards in all backend processes and services to safeguard our users' assets and data. Node/JavaScript Expertise: Very proficient in Node.js and JavaScript programming.Microservices Architecture: Familiarity with microservices architecture for scalable applications.Complex Platform Development: Experience in actively developing complex platforms.Peer-to-Peer Technologies: Understanding of Peer-to-Peer technologies.Database Interaction: Proficiency in interacting with databases such as MySQL and MongoDB.Quick Learner: Ability to quickly adapt and learn new technologies.Security Awareness: Strong understanding and experience implementing best security practices.Important information for candidatesRecruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.ioWe will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.When in doubt, feel free to reach out through our official website.

Full TimeRemotedirectBackend
Salary not disclosed2 months ago

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the jobAs a senior Backend Developer, you will be a part of the team that works on the development and maintenance of the backend components of multiple services related to the platform. This includes:New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.Scalability - all backend services that power Tether platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.Security - Tether makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base.ResponsibilitiesWork closely with developers, product managers, designers, and other stakeholders to translate requirements into clear, practical architectures.Improve existing core backend services written in NodeJSImplement new solutions that interact with different core services through RPC callsWrite complex database queries for compliance and financial purposes At least 5 years of experience working with Javascript/Nodejs.Familiar with microservices architectureHave actively participated in the development of a complex platformGood experience in interacting with databases (MySQL, MongoDB)Ability to quickly learn new technologiesGood understanding of security practicesPreferred skills:Experience with blockchain integrationComfortable with high-availability conceptsRuby and Rails experienceOther technologies of interest: Message queues (Redis), Caches and Job QueuesImportant information for candidatesRecruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.ioWe will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.When in doubt, feel free to reach out through our official website.

Full TimeRemotedirectBackend
Salary not disclosed2 months ago

Senior Backend Developer

Tether Operations · Remote job

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the jobAs a senior Backend Developer, you will be a part of the team that works on the development and maintenance of the backend components of multiple services related to the platform. This includes:New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.Scalability - all backend services that power Tether platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.Security - Tether makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base.ResponsibilitiesWork closely with developers, product managers, designers, and other stakeholders to translate requirements into clear, practical architectures.Improve existing core backend services written in NodeJSImplement new solutions that interact with different core services through RPC callsWrite complex database queries for compliance and financial purposes At least 5 years of experience working with Javascript/Nodejs.Familiar with microservices architectureHave actively participated in the development of a complex platformGood experience in interacting with databases (MySQL, MongoDB)Ability to quickly learn new technologiesGood understanding of security practicesPreferred skills:Experience with blockchain integrationComfortable with high-availability conceptsRuby on Rails experienceOther technologies of interest: Message queues (Redis), Caches and Job QueuesImportant information for candidatesRecruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.ioWe will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.When in doubt, feel free to reach out through our official website.

Full TimeRemotedirectBackend
Salary not disclosed2 months ago

Junior Python Developer

Talixo · Krakow, Kraków, Poland

About Talixo Talixo is the world's leading operator of pre-booked transfers, working with the biggest brands in travel. We partner with fleets in 1,100+ cities and 130+ countries worldwide to provide travellers with reliable, high-quality rides, making their journeys easier and more enjoyable, from door to door. Since 2012, we've been helping travel brands create more connected journeys, and we're looking for people willing to go the extra mile. Operating across two key locations: Krakow and Berlin, our cohesive teams - IT, Operations, Fleet, Pricing, Sales, Finance and HR - drive technological innovation, operational excellence, and organisational development. With a shared focus on refining processes and enhancing technology, while spearheading strategic growth initiatives, we seamlessly contribute to our collective success. About the Role We are looking for a Junior Python (Django) Developer to join our growing team. This role is ideal for someone at the beginning of their professional journey who has hands-on experience with Django and is eager to develop their backend engineering skills in a supportive, collaborative environment. What You’ll Do Develop and maintain backend applications using Python and Django Design, build, and optimise RESTful APIs Work with relational databases (PostgreSQL) and NoSQL solutions Write clean, maintainable, and well-tested code Collaborate with frontend developers, QA engineers, and product teams Participate in code reviews and follow best engineering practices Debug issues and optimise application performance Support ongoing improvements in system architecture and development processes Who You Are You have hands-on experience with Django, demonstrated by: Sharing your personal Django projects (preferred),  1 year of professional software engineering experience Required Skills & Qualifications Solid understanding of Python fundamentals Experience with Django and Django REST Framework (models, views, serializers, APIs) Basic knowledge of Django Templates Familiarity with relational databases and SQL Practical experience with Git (version control, pull requests, resolving conflicts) Experience using AI-powered developer tools (e.g., Cursor, Copilot, ChatGPT, Claude, Gemini) in day-to-day work Good understanding of software development best practices Based in Kraków or nearby (students are welcome to apply) Nice to Have Understanding of development methodologies (e.g., Kanban) Exposure to modern backend ecosystems and cloud environments Familiarity with AWS concepts (e.g., EC2, S3, or similar services) Basic knowledge of Bash scripting Language & Soft Skills English proficiency at B2 level or higher (ability to read and understand technical documentation) Polish proficiency at B2 level or higher Strong communication and teamwork skills Willingness to learn, grow, and take initiative Passion for technology and software development How We Work (Our Tech Environment) Methodology: Kanban Tools: Jira, Confluence, Git Tech Stack: Django, Celery, PostgreSQL, NoSQL, Docker, AWS (EC2, ECS, Lambda, DynamoDB, S3) Monitoring & Testing: New Relic, Sentry, AWS CloudWatch, Postman AI & Productivity Tools: LLMs, Cursor IDE What We Offer ✨ Learning & Growth Work alongside experienced engineers and gain hands-on experience with modern technologies. ⌛ Flexible Work Arrangements Minimum 120 hours/month, with hybrid work options. 🚀 Career Development Clear growth path from Junior → Mid → Senior, with opportunities to specialise in areas such as Data Engineering, DevOps (AWS), or AI/LLMs. 🏢 Office & Environment Modern office in Kraków city centre, within walking distance of the Main Market Square and Galeria Krakowska, featuring comfortable workspaces and electric standing desks. Additional Benefits MultiBenefit and private medical healthcare (after trial period) Fully equipped kitchen with fresh fruit and snacks Diverse, international team speaking 15+ languages Recruitment Process Initial Screening – 15-minute call with a recruiter Technical Interview – 90-minute session (online or onsite) with two Senior Python Developers, including live coding Offer Stage – Offer extended to the selected candidate Let us get to know you — apply today!

Full TimeRemotedirectBackend
Salary not disclosed1 month ago

Senior Python Developer

People More P.S.A. · Warsaw, Poland

Senior Python Developer Warsaw / hybrid Hello, We are called People More because we treat our employees with respect, but also because the projects we work on are for people and should be easy and pleasant to use. We are technological, but we look at the bigger picture :) The company is made up of people with a huge client base in the country and abroad, for whom we build projects from scratch (UX, UI, frontend, backend, mobile) or in part. We work directly for our clients and also support our partners in their own solutions. This ensures a wide range of projects and the ability to change! We work with clients all over the world. For the project that we are working on with our partner, we are looking for Senior Python Developer Your duties will include: Developing software for real robots solving real operational problems Designing scalable, maintainable software architectures used in robotic systems Creating advanced algorithms and logic that allow robots to handle diverse objects and operational scenarios Developing data-driven heuristics used in robotic decision-making Working on optimization and placement algorithms used in physical environments Designing and developing APIs and interfaces integrating robotic systems with warehouse management and enterprise platforms Testing and validating solutions both in simulation and directly on physical robotic platforms Collaborating with engineering teams to improve system performance, reliability, and scalability   Requirements that must be met: Minimum 7 - 8 years of professional experience in Python development Excellent knowledge of Python Strong algorithmic thinking and advanced problem-solving skills Experience designing complex and scalable software systems Ability to write clean, maintainable and well-structured code Very good English and Polish   Nice to have: Background in robotics, automation, or AI-driven systems Experience designing optimization algorithms or decision-making systems Experience working with data processing, heuristics, or intelligent systems Experience integrating systems using APIs or distributed architectures Strong sense of ownership and ability to work independently What we offer: We are open and honest and we solve problems instead of generating them. Maybe it’s obvious, but we really respect our employees and associates. We used to be software developers, too, and we appreciate that job! A small team An international working environment and international projects Private medical care Sports card Training courses Hybrid work – Warsaw   Why it’s a good idea to work with People More? If you are not satisfied with your work or your tasks, we’ll find a way out together! If you get bored, we will offer you a new product and new, fascinating tasks We will work on your brand together: you will get an opportunity to attend conferences, including as a speaker, and we will help you publish in recognized magazines and online We will facilitate your access to challenges that are usually difficult to get At any time, you can talk directly to the board of People More—we talk your language because the company’s founders are software developers and designers!

Full TimeRemotedirectBackend
PLN 140 - 190/hour2 months ago

Backend Engineer - Mapping Tools

Waymo · WARSAW, MASOVIAN VOIVODESHIP

Waymo is an autonomous driving technology company with the mission to be the world's most trusted driver. Since its start as the Google Self-Driving Car Project in 2009, Waymo has focused on building the Waymo Driver—The World's Most Experienced Driver™—to improve access to mobility while saving thousands of lives now lost to traffic crashes. The Waymo Driver powers Waymo’s fully autonomous ride-hail service and can also be applied to a range of vehicle platforms and product use cases. The Waymo Driver has provided over ten million rider-only trips, enabled by its experience autonomously driving over 100 million miles on public roads and tens of billions in simulation across 15+ U.S. states. The Waymo Mapping team's goal is to build a high resolution map of the world to support safe autonomous driving. We work on creating the map using a combination of automatic and manual techniques and build the infrastructure to store, process, and distribute the map. Our team collaborates with several other Waymo teams that consume map data. As a member of the tooling team, you work on the internal labeling tools, infrastructure, and metrics that support our operation. You work closely with stakeholders across product, UX, mapping operations, and engineering. You will: Help build and evolve mission-critical labeling tools and systems powering mapping at Waymo. Collaborate with Mapping Operations, UX, and other engineering teams to deliver excellent tools for internal use. Work with ML teams to integrate machine learning models into our workflow to drastically improve scalability. Build backend infrastructure for storing and processing many forms of map data Leverage Google's ecosystem to build, deploy, and scale backend services that process vast amounts of mapping data. Scale systems to map the world's cities, enabling Waymo's rapid expansion into new and complex urban environments. You have: Bachelor’s degree or equivalent practical experience. 3 years of relevant industry experience Experience with C++ and large-scale data processing. Willingness to own problems end-to-end, from diving into a new and complex domain to working on various parts of the system A passion for good software engineering We prefer: Hands-on experience working with geographical data.

Full TimedirectBackend
Salary not disclosed3 months ago

26 900 – 29 400 PLN netto /miesiąc B2BEtat: 100% APLIKUJĘ Zapisz się na Job Alert Dodaj do ulubionych Udostępnij Zadaj pytanie Azure Data Engineer Verita HR Zdalnie 20.0k–28.0k PLN B2B #JVM#Data analysis#Azure Power BI Developer apreel Warszawa 20.2k–26.9k PLN B2B #SQL#Power BI#Azure Senior Data Engineer 1dea Zdalnie 28.6k–31.9k PLN B2B #ETL#ELT#Python Podobne ogłoszenia ZAPISZ SIĘ NA JOB ALERT Azure Data Engineer @Verita HR Data Science#JVM#Data analysis#Azure#Python#Data Engineer#SQL 20.0k–28.0k PLN Praca zdalna Power BI Developer @apreel Data Science#SQL#Power BI#Azure#Azure Data Factory#MS Fabric 20.2k–26.9k PLN Warszawa Senior Data Engineer @1dea Data Science#ETL#ELT#Python#PySpark#Databricks#SQL 28.6k–31.9k PLN Praca zdalna Senior Cloud Data Engineer (Azure) @Verita HR Data Science#Data analysis#Azure#Python#Data Engineer#SQL#ETL 26.3k–28.4k PLN Praca zdalna Senior Data Engineer (Databricks Expert) @DCG Data Science#Big Data#ETL#Spark#Databricks#SQL#Python 28.6k–31.9k PLN Praca zdalna Data Engineer @apreel Data Science#SQL#Python#JavaScript#Backend#ServiceNow#Power BI 24.4k–27.7k PLN Warszawa Praca zdalna DevOps / Developer | Azure Data Factory & Databricks @1dea Data Science#Azure#CI/CD#SQL 23.5k–30.2k PLN Praca zdalna Data Engineer @apreel Data Science#GCP#Big Data#Power BI 21.8k–30.2k PLN Praca zdalna Data Scientist @apreel Data Science#Python#SQL#Kotlin#Scala#Data science 23.5k–29.4k PLN Praca zdalna BI Engineer @apreel Data Science#SQL#Power BI#ETL 20.2k–25.2k PLN Praca zdalna Poprzednio przeglądane oferty ServiceNow Architect (Governance | Leadership | CMDB) @1dea Architekt#ServiceNow#JavaScript#Scrum#Project management#AWS#Azure 29.4k–32.8k PLN Praca zdalna Senior Kotlin MultiPlatform Developer @1dea Android#Kotlin#Android#iOS#CI/CD#API design#Backend 26.9k–28.6k PLN Praca zdalna Copilot Analyst (+ CRM | SAP | ServiceNOW) @1dea Analityk#AI#Copilot#Agentic#Low-Code#JavaScript#Power Platform 25.2k–26.9k PLN Praca zdalna Senior Java Liferay Developer @1dea Java#Java#Liferay#TypeScript#HTML/CSS#PostgreSQL#CI/CD 26.0k–27.7k PLN Praca zdalna Backend Data Specialist (MS Fabric) 1dea 100% zdalnie (Warszawa) Data Science SQLETLPower BIMS FabricAzureJavaScriptBig Data Regular PolskiAngielski XP min. 5 lat doświadczenia Kogo poszukujemy? Wymagania Doświadczenie: Minimum 5 lat w obszarze Data Engineering, Analytics Engineering lub Backend Data Processing. Microsoft Fabric & Azure: Ekspercka wiedza z zakresu architektury Lakehouse, Data Pipelines, Dataflows oraz modeli semantycznych. ServiceNow: Udokumentowane doświadczenie w pracy z danymi ITSM (ekstrakcja, normalizacja, transformacja). Power BI: Zaawansowana znajomość modelowania danych, języka DAX, łączności XMLA oraz optymalizacji wydajnościowej. Programowanie i SQL: Bardzo wysoka biegłość w SQL, Power Automate oraz językach backendowych (Python, JavaScript lub PowerShell). Metodologia: Znajomość Agile/DevOps, standardów dokumentacji, kontroli wersji oraz zasad Data Governance. Angielski komunikatywny na poziomie B2+ Mile widziane: Certyfikaty: DP-600 (Fabric Analytics Engineer), DP-700 (Fabric Data Engineer) lub PL-300 (Power BI Data Analyst). Automatyzacja: Doświadczenie w zaawansowanej orchestracji danych i zarządzaniu metadanymi w skali Enterprise. AI/ML: Znajomość koncepcji Machine Learning i chęć rozwijania modeli predykcyjnych w ramach inicjatyw analitycznych. Czym będziesz się zajmować? Branża: Konsulting IT Wakaty: 2 Lokalizacja: 100% zdalnie Start: ASAP (do 2 mies.) Stawka: 160-175 PLN netto+VAT/godz. Umowa: B2B, długoterminowo Zakres obowiązków ETL/ELT: projekt i utrzymanie potoków danych Architektura: składowanie i optymalizacja Integracje: API, ingestia i synchronizacja Współpraca: z architektami ServiceNow i zespołem analytics Proces rekrutacji Rozmowa z rekruterem (~10 min) Prezentacja CV klientowi Rozmowa techniczna (~1-1,5 h) (Opc.) Końcowa rozmowa (~30 min) Decyzja i oferta Jakie otrzymasz benefity? Pakiet medyczny Pakiet sportowy Gdzie i jak będziesz pracował? Flory 9, Warszawa Tryb pracy: Elastyczne godziny pracy Godziny pracy biura: 7-20 Model pracy Stacjonarnie Hybrydowo 100% zdalnie POKAŻ NA MAPIE Kim jesteśmy? 1dea Wielkość firmy: do 50 https://www.1dea.pl 1dea is recruitment and IT outsourcing company focusing on expert and managerial positions. We’re based in Poland but thanks to our international network, our capabilities are global. 1dea covers the sectors of IT | Transport, Spedition, Logistics | Property & Construction | Tax & Legal. We thrive on excellence, priding ourselves on being a young, vibrant, creative and a fast growing. Want to find out more? Get in touch! LISTA APLIKUJĘ pomoc@solid.jobs ogloszenia@solid.jobs rodo@solid.jobs +48 883 004 203 SOLID.Jobs © 2026 SOLID.Jobs Dlaczego warto? Cennik Regulamin Prywatność Partnerzy Znajdź pracę Oferty pracy Ścieżki kariery Jak szukać pracy? Jak napisać dobre CV? Profile firm Raporty Kalkulator wynagrodzeń Rozwijaj się Prasówka Blog Podcast Jak rekrutować? SOLID.Recruitment Generatory IT Bądź w kontakcie Kontakt LinkedIn Facebook X | Twitter Youtube Zgłoś pomysł Stawiamy na wsparcie całego procesu rekrutacji, ponieważ wystawienie ogłoszenia to jedynie początek tego procesu. Zachęcamy firmy do prowadzenia rekrutacji zgodnie z naszym autorskim procesem SOLID.Recruitment, który pomaga kandydatom w staniu się lepszymi specjalistami.

Full TimeRemotedirectBackend
PLN 29,400 - 29,400/month2 months ago

Company: Volga Partners Location: Fully Remote (Occasional office visits 1–2 times/year) Compensation: ₹23–₹30 LPA (based on experience) Job Type: Full-time Start Date: Urgently hiring — must be available to start within 1–2 weeks Work Hours: 8 AM – 5 PM IST or 9 AM – 6 PM IST (Collaboration with USA Pacific Time teams)  About the Role Volga Partners is looking for a skilled Software Development Engineer with strong expertise in Python backend systems and AI/LLM applications. In this role, you will build and maintain production-grade AI-powered systems, integrating large language models into real-world workflows. You will work across backend services, orchestration layers, and data pipelines—ensuring that AI features are reliable, scalable, and performant. This is a hands-on engineering role requiring strong problem-solving, system design, and the ability to operate in fast-evolving AI environments.  Key Responsibilities Build and maintain backend services and internal tools in Python for AI-powered applications.  Integrate LLM APIs into production workflows, including prompt handling, response processing, validation, and retries.  Design and implement scalable REST APIs, async workflows, and background job systems.  Maintain and enhance components of a multi-language codebase (C#/C++, Python, web technologies) where applicable.  Work with structured and unstructured data to prepare inputs, transform outputs, and support downstream systems.  Develop systems for prompt management, model routing, response validation, and failure handling.  Debug complex issues across backend logic, API integrations, and distributed services.  Monitor system performance using telemetry tools and proactively identify and resolve bottlenecks.  Automate recurring workflows related to data processing, evaluation, and reporting.  Collaborate with cross-functional teams to turn ambiguous product ideas into production-ready features.  Contribute to architecture decisions around scalability, performance, and safe use of AI systems.  Write clean, testable, and maintainable code while helping establish engineering best practices for AI systems.   What You Bring Education Bachelor’s degree in Computer Science or a related field.  Experience 3+ years of professional experience in backend or systems engineering.  Strong experience in Python development for production systems.  Experience integrating LLM APIs or AI-driven services into real applications.  Proven ability to work within large codebases and collaborative environments.   Technical Skillset Core Skills Python (strong), backend system design, API development  Async workflows, job queues, and service orchestration  Debugging across APIs, services, and data pipelines  Languages Python, C#, C/C++, JavaScript/TypeScript, SQL  Frameworks & Libraries .NET Web API, ASP.NET (MVC & WebForms), Entity Framework  React, Bootstrap, Ajax  Testing frameworks (xUnit or similar)  AI / LLM Systems Prompt design, response parsing, and guardrails  Model integration patterns and failure handling  Understanding of LLM limitations and production constraints  Tools & Platforms Azure DevOps, Git, Docker, Terraform  SQL Server or similar databases  Elastic Stack, Postman, Swagger  AWS or Azure cloud environments  Architecture Microservices, distributed systems, modular architectures  Operating Systems Windows, Linux  Build Tools Make, Ninja (preferred)   Nice to Have Experience with RAG, embeddings, vector databases, or retrieval systems  Familiarity with agent workflows or multi-step orchestration  Experience with model monitoring, prompt versioning, or evaluation systems  Understanding of AI safety, privacy, and secure data handling  Exposure to cloud-native deployments and scalable infrastructure   Why Join Us  Remote-first culture with minimal in-person requirements   Work with global teams on cutting-edge AI systems   Opportunity to build real-world LLM applications at scale   High ownership, fast-moving environment with strong growth potential 

Full TimeRemotedirectBackend
Salary not disclosed1 month ago

.NET Developer With Angular

SOLID.Jobs · Poland

23 500 – 25 200 PLN netto /miesiąc B2BEtat: 100% APLIKUJĘ Zapisz się na Job Alert Dodaj do ulubionych Udostępnij Zadaj pytanie .NET Developer With React apreel Zdalnie 23.5k–25.2k PLN B2B #.NET#C##React .NET Backend Dev4Hire Zdalnie 21.8k–25.2k PLN B2B #C##.NET#.NET Core Senior Fullstack .NET ITFS Warszawa 21.8k–25.2k PLN B2B #.NET#.NET Core#ASP.NET Podobne ogłoszenia ZAPISZ SIĘ NA JOB ALERT .NET Developer With React @apreel .NET#.NET#C##React#Entity Framework#WCF#Azure 23.5k–25.2k PLN Praca zdalna .NET Backend @Dev4Hire .NET#C##.NET#.NET Core#Entity Framework#SQL#REST 21.8k–25.2k PLN Praca zdalna Senior Fullstack .NET @ITFS .NET#.NET#.NET Core#ASP.NET#SQL#RabbitMQ#Azure Services 21.8k–25.2k PLN Warszawa Fullstack .NET Developer @apreel .NET#.NET#SQL#C##React 25.2k–29.4k PLN Warszawa Senior Fullstack Developer (.NET + React) @apreel .NET#.NET#ASP.NET Core#REST#React#SQL#Microservices 25.2k–29.4k PLN Warszawa Praca hybrydowa .NET Developer @speedapp .NET#.NET#SQL#Azure#Elasticsearch#NoSQL#Docker 20.2k–23.5k PLN Warszawa Dynamics 365 CRM Developer (M/F/NB) @Power Media .NET#C##JavaScript#.NET#CRM#TypeScript#React 25.2k–33.6k PLN Praca zdalna Fullstack .NET Developer @apreel .NET#TypeScript#C##Angular#Pricing#.NET#ASP.NET 23.5k–26.9k PLN Praca zdalna .NET Developer @apreel .NET#.NET#SQL#C##.NET Core#Angular#TypeScript 21.8k–26.9k PLN Praca zdalna Fullstack Developer (.NET + React) @Scalo .NET#.NET#React#WCF#SQL 18.5k–23.5k PLN Warszawa Praca hybrydowa Poprzednio przeglądane oferty Regular/Senior Android Developer @Dev4Hire Android#Android#Java#Kotlin#Jetpack Compose#Gradle#GraphQL 20.2k–21.8k PLN Praca zdalna Machine Learning / MLOPS Engineer @Scalo Data Science#Python#Kubernetes#GCP#ML 18.5k–19.3k PLN Warszawa Data Architect @DCG Architekt#medallion architecture#Kafka#Snowflake 30.2k–32.8k PLN Praca zdalna AI / ML Engineer @apreel Data Science#ML#AI#LLM 21.8k–26.9k PLN Praca zdalna NOWE .NET Developer With Angular apreel 100% zdalnie (Warszawa) .NET C#.NETAngularEntity FrameworkWCFAzureSOAPRESTSQLUnit testingGitCI/CD Senior PolskiAngielski XP min. 4 lata doświadczenia Kogo poszukujemy?  To qualify for the role, you must have  4+ years of commercial experience with .Net technologies (C#, .NET/.NET Core, Entity Framework or other ORM, WCF)  2+ years of experience with some of the following Azure services: Functions, Logic apps, Web Apps, SQL Server and others  3+ years of experience in Angular (or React experience with recent Angular experience)  Knowledge of Architectural and Design patterns  Experience working with web services / APIs e.g. SOAP / REST  Knowledge of Clean Code and Unit Testing  Knowledge of SQL  Experience with source code management (GIT), Continuous Integration, Continuous Delivery and automated deployment  Fluent English (spoken and written)  Ideally, you’ll also have  Azure certificates will be a plus  Czym będziesz się zajmować? .Net Developer with Angular     Key responsibilities  Applying object-oriented and functional programming styles to real-world software engineering problems in a full-stack capacity.  Demonstrate understanding of high-quality coding and testing practices.  Adopt Agile software delivery techniques and technologies including Continuous Integration & Continuous Delivery (CI/CD).  Developing solutions using a variety of technologies and tools hosted in Azure.  Skills and attributes for success  Knack for writing clean, readable code in line with most well-known software design patterns and good practices.  Eager to learn new technologies and frameworks including Azure Cloud  Offer:  Location: Poland, remote + equipment pick up in Warsaw/Wrocław  Zatrudnienie: przez apreel na zasadach B2B  Start: asap  Rate: up to 150 zł netto/ h  Gdzie i jak będziesz pracował? Niegolewskiego, Warszawa Tryb pracy: Elastyczne godziny pracy Godziny pracy biura: 7-18 Model pracy Stacjonarnie Hybrydowo 100% zdalnie POKAŻ NA MAPIE Kim jesteśmy? apreel Wielkość firmy: 320 https://apreel.com apreel został założony w kwietniu 2010 roku przez przyjaciół, których marzeniem było stworzenie własnego software house'u. Wraz z rozwojem firmy i jednocześnie wzrostem zaufania klientów, rozszerzyła swoją działalność o usługi takie jak leasing ekspertów IT. Dziś ten obszar stanowi główny filar działalności apreel. Nie oznacza to jednak, że założyciele apreela porzucili swoje marzenia. Naszą pasją zawsze będzie tworzenie autorskich rozwiązań informatycznych, a celem, do którego dążymy, jest ciągłe ich doskonalenie. W połączeniu z wyjątkową atmosferą i profesjonalizmem stworzyliśmy w apreelu wyjątkowy klimat. Zapraszamy do aplikowania, jeżeli zależy Ci na pracy wśród dobrych specjalistów, w stabilnych organizacjach oraz z jasnymi warunkami finansowania. LISTA APLIKUJĘ pomoc@solid.jobs ogloszenia@solid.jobs rodo@solid.jobs +48 883 004 203 SOLID.Jobs © 2026 SOLID.Jobs Dlaczego warto? Cennik Regulamin Prywatność Partnerzy Znajdź pracę Oferty pracy Ścieżki kariery Jak szukać pracy? Jak napisać dobre CV? Profile firm Raporty Kalkulator wynagrodzeń Rozwijaj się Prasówka Blog Podcast Jak rekrutować? SOLID.Recruitment Generatory IT Bądź w kontakcie Kontakt LinkedIn Facebook X | Twitter Youtube Zgłoś pomysł Stawiamy na wsparcie całego procesu rekrutacji, ponieważ wystawienie ogłoszenia to jedynie początek tego procesu. Zachęcamy firmy do prowadzenia rekrutacji zgodnie z naszym autorskim procesem SOLID.Recruitment, który pomaga kandydatom w staniu się lepszymi specjalistami.

Full TimeRemotedirectFrontend
PLN 25,200 - 25,200/month2 months ago

Senior Backend Engineer – Submission Processing Team (Europe) ENGINEERING EUROPE (REMOTE) FULL TIME APPLY FOR JOB About Kalepa: Commercial insurance is a trillion-dollar industry still run out of Microsoft Outlook. Kalepa is changing that. Kalepa is an AI Underwriting Platform built to deliver Professional-Grade AI in production - helping the world's most important insurers centralize and prioritize submission data, surface critical risk insights, and make faster, more confident decisions. Customers see meaningful improvements to both speed and portfolio quality as soon as they implement Kalepa - so much so that clients call it “truly an underwriter’s dream.” Kalepa's team members bring experience from top technology companies, including Facebook, Google, Amazon, Mastercard, and Uber. Kalepa is backed by leading VCs like IA Ventures and Inspired Capital. Our Values (This is important): Many organizations have a dusty list of corporate values that no one ever follows. Kalepa is not one of those companies. Our values are designed to unlock the potential of our employees. Success at Kalepa is bred from five core principles: Hustle and Determination - We hire people who take full ownership of their craft and relentlessly pursue excellence with speed and determination. We choose the hard problems and do not give up. This is the foundation of how we work and how we win. Deliver Customer Impact - We're obsessed with customer impact. Every feature, every line of code, every decision is measured against one question: does this help insurers make better decisions? If it doesn't drive speed, accuracy, or profitability for our customers, we don't build it. Meritocracy - We're building something exceptional, and that requires exceptional people and ideas. We have a high bar but we reward excellence with rapid growth. If you're the best at what you do, you'll thrive here. Transparency - We value honest, transparent communication over politics. We challenge ideas, not people. We say what needs to be said, even when it's hard. This is how we solve problems fast and find the truth. Experiment Relentlessly - Many of the problems we face have never been solved before. We tackle them by testing quickly, measuring rigorously, and iterating until we find the path forward. Speed of learning is our advantage. In addition to our NY office, we have remote employees speaking 10+ languages across the globe. But we invest in bringing our people together both for regional meetups and global offsites (2021 - Playa Del Carmen | 2022 - Rome | 2023 - Buenos Aires | 2024 - Lisbon  | 2025 - Cartagena). Kalepa’s culture isn’t for everyone, and that’s ok. But for the people who are a fit, they can’t imagine working elsewhere. About the role: Salary range: $85k – $155k USD* We are looking for smart engineers who love to code, seek challenging problems, and appreciate recognition for excellent work. As part of the Submission Processing team, you will work at the intersection of AI and backend engineering - this is core R&D work, not routine development. Your day-to-day will involve building LLM-based solutions that process millions of insurance documents at scale, extracting precise information about companies and synthesizing it into a complete picture of the insured. This is a problem the industry hasn't solved effectively yet, and you'll be working on cutting-edge challenges that require creativity and ambition. You'll collaborate with a global team of full-stack, data, ML, and DevOps engineers to build scalable backend solutions as we continue to grow. We're a small team where individual contributions have an outsized impact on both our technology and our business. You'll be right at home if you: Have 5+ years of software engineering experience with deep Python expertise. Embody hustle and grit, you're excellent at your craft and relentless in pursuing it. Take full ownership of your work and drive projects to completion with minimal oversight. Communicate proactively, surfacing blockers, asking the right questions, keeping stakeholders in the loop. Thrive on experimentation: you're comfortable testing ideas, measuring results, and iterating quickly on problems no one has solved before. Have strong fundamentals in system design, debugging, and problem-solving. Have worked with LLMs in production and understand what it takes to deploy them at scale. Are fluent with coding agents and AI-assisted development - you don't just tolerate AI tools, you actively push their boundaries. Have experience with AWS and serverless technologies (Lambda, EC2), asynchronous workflows, and cloud environments. Are comfortable with relational databases, ideally PostgreSQL. Are excited by R&D and want to solve problems others are still struggling with. What you’ll get: Competitive salary (based on experience level). Significant equity options package. 401(k) plan with employer contribution (regardless of employee contribution) Excellent benefits: 100% covered medical, 100% covered vision and dental, and others. Work with an ambitious, smart, global, and fun team to transform a $1T global industry. 20 days of PTO a year. Global team offsites (2021 - Playa del Carmen, 2022 - Rome, 2023 - Buenos Aires, 2024 - Lisbon) Healthy living/gym stipend. Mobile phone bill stipend. Continuing education credits. *The salary range listed is an estimate and will vary based on a variety of factors. Final compensation will be determined during the offer stage based on relevant experience, performance during the interview process, and geographic location, and may therefore differ from the posted range.  APPLY FOR JOB See how Kalepa helps insurers improve speed, consistency, and portfolio performance. BOOK YOUR DEMO TRUSTED BY TOP-TIER INSURERS. PROVEN IN PRODUCTION. Stay ahead with underwriting intelligence: Insights, product updates and industry trends By subscribing you agree to with our Privacy Policy and provide consent to receive updates from our company. PLATFORM Submission Ingestion Clearance Triage Risk Analysis Rating Quote & Bind Portfolio Management SOLUTIONS BY ROLE For CUOs For COOs For IT/AI Leaders BY SEGMENT Carriers MGAs Mutuals RESOURCES Case Studies Blog Events ABOUT Company Careers Newsroom © 2026 Kalepa. All rights reserved. Design by Altalogy Privacy Policy Product Security

Full TimeRemotedirectBackend
USD 85,000 - 155,000/year3 months ago

Junior Java Developer

SOLID.Jobs · Poland

6 700 – 8 400 PLN netto /miesiąc B2BEtat: 100% 40 – 50 PLN brutto /miesiąc Umowa zlecenieEtat: 100% APLIKUJĘ Zapisz się na Job Alert Dodaj do ulubionych Udostępnij Zadaj pytanie Junior Java Developer apreel Zdalnie 7.6k–8.4k PLN B2B #Java#Spring#Hibernate Fullstack Java Developer apreel Warszawa / Zdalnie 16.8k–25.2k PLN B2B #Java#Spring Boot#Spring Fullstack Java Developer apreel Warszawa 23.5k PLN B2B #Java#Spring Boot#Hibernate Podobne ogłoszenia ZAPISZ SIĘ NA JOB ALERT Junior Java Developer @apreel Java#Java#Spring#Hibernate#REST#SQL 7.6k–8.4k PLN Praca zdalna Fullstack Java Developer @apreel Java#Java#Spring Boot#Spring#Hibernate#Kafka#Angular 16.8k–25.2k PLN Warszawa Praca zdalna Fullstack Java Developer @apreel Java#Java#Spring Boot#Hibernate#Oracle/PostgreSQL#JavaScript#TDD 23.5k PLN Warszawa Java / Gosu Developer @apreel Java#Java#Spring Boot#Spring#Hibernate#OOP#Git 21.8k–28.6k PLN Warszawa Java  Developer @apreel Java#Java#SQL#Test automation#Scrum#Spring#Hibernate 21.8k–25.2k PLN Praca zdalna Java Developer @apreel Java#Java#Spring Boot#Spring#Hibernate 21.8k–26.0k PLN Praca zdalna Fullstack Java Developer @apreel Java#Java#Spring Boot#Spring#Hibernate#Angular#TypeScript 21.8k–27.7k PLN Praca zdalna Java Fullstack Developer (Angular) @apreel Java#Java#SQL#Test automation#Scrum#Spring#Hibernate 23.5k–28.6k PLN Praca zdalna Java Developer @apreel Java#Java#Spring Boot#Spring#Hibernate#JavaScript 21.8k–26.9k PLN Warszawa Praca hybrydowa Java Developer @apreel Java#Java#Spring Boot#Spring#Hibernate#Git 20.2k–23.5k PLN Warszawa Poprzednio przeglądane oferty Junior Java Developer @apreel Java#Java#Angular 6.3k–8.4k PLN Warszawa Praca zdalna Junior Java Developer @apreel Java#Java#Spring#Hibernate#REST#SQL 7.6k–8.4k PLN Praca zdalna Senior System Analyst (UML + Sparx EA) @1dea Analityk#System analysis#Analytical thinking#UML#Enterprise Architect 24.4k–26.0k PLN Praca zdalna QA Engineer (JavaScript, Nightwatch) @Scalo Inżynier testów automatycznych#JavaScript#Java#SQL#Git#Azure DevOps 19.3k–22.7k PLN Katowice NOWE Junior Java Developer apreel 100% zdalnie (Warszawa) Java JavaSpring BootSpringHibernate Junior PolskiAngielski Kogo poszukujemy? Wymagania: Znajomość Java oraz Baz danych Chęć poznania frameworków Frontend i DevOps i zostania Full-Stack Developerem Student obecny lub były: Wydziału Elektrycznego lub Wydziału Elektroniki (EiTI) Politechniki Warszawskiej Czym będziesz się zajmować? Zadania: Tworzenie backendów (BFF) do systemów sprzedażowych w projektach dla sektora ubezpieczeń Budowa i rozbudowa systemów w rozproszonej architekturze mikrousługowej Praca w zespołach mieszanych java backend /angular frontend max 5 osób Scrum/agile Gdzie i jak będziesz pracował? Centrum, Warszawa Tryb pracy: Elastyczne godziny pracy Godziny pracy biura: 7-18 Model pracy Stacjonarnie Hybrydowo 100% zdalnie POKAŻ NA MAPIE Kim jesteśmy? apreel Wielkość firmy: 300 Firma apreel powstała w kwietniu 2010 roku. W miarę rozwoju firmy i równolegle ze wzrostem poziomu zaufania klientów, jej działalność poszerzyła się o usługi Outsourcingu Specjalistów IT. Dziś to właśnie ten obszar stanowi główny filar działalności apreel. LISTA APLIKUJĘ pomoc@solid.jobs ogloszenia@solid.jobs rodo@solid.jobs +48 883 004 203 SOLID.Jobs © 2026 SOLID.Jobs Dlaczego warto? Cennik Regulamin Prywatność Partnerzy Znajdź pracę Oferty pracy Ścieżki kariery Jak szukać pracy? Jak napisać dobre CV? Profile firm Raporty Rozwijaj się Prasówka Blog Podcast Jak rekrutować? SOLID.Recruitment Bądź w kontakcie Kontakt LinkedIn Facebook X | Twitter Youtube Zgłoś pomysł Stawiamy na wsparcie całego procesu rekrutacji, ponieważ wystawienie ogłoszenia to jedynie początek tego procesu. Zachęcamy firmy do prowadzenia rekrutacji zgodnie z naszym autorskim procesem SOLID.Recruitment, który pomaga kandydatom w staniu się lepszymi specjalistami.

Full TimeRemotedirectBackend
PLN 8,400 - 8,400/month2 months ago
PoprzedniaStrona 2 z 13Następna