/Senior Full Stack Developer

Senior Full Stack Developer

Kraków, Poland, PLRemoteplvia direct
// Job Type
Full Time
// Salary
Not disclosed
// Posted
3 months ago
// Work Mode
hybrid

About the Role

<p><span>Join Keepit’s mission to secure the digital world and shape the future of global cloud backup.</span></p><h5>About the role</h5><p><span style="">We are looking for an experienced Full Stack Developer to design, build, and maintain production-grade applications and systems using JavaScript, TypeScript and Node.js. In this role, you will collaborate with cross-functional teams across sales, marketing, and operations to deliver scalable and reliable solutions. A proactive approach, strong collaboration skills, and a commitment to continuous improvement are key to success in this role. This position can be based in Krakow or Copenhagen.</span></p><h5>About you</h5><p><span><strong>Required qualifications:</strong></span></p><ul><li><p><span>5+ years of professional experience in full-stack application and system development</span></p></li><li><p><span>Proven track record building and maintaining production-grade applications</span></p></li><li><p><span>Experience working with cross-functional teams including sales, marketing, and operations</span></p></li></ul><p><span><strong>Core Technologies:</strong></span></p><ul><li><p><span>Strong proficiency in JavaScript/TypeScript for both frontend and backend development</span></p></li><li><p><span>Deep understanding of PostgreSQL database design, optimization, and management</span></p></li><li><p><span>Expert-level knowledge of RESTful API design, development, and consumption</span></p></li><li><p><span>Experience with SOAP API integration and XML processing</span></p></li><li><p><span>Proficiency with modern frontend frameworks (React, Vue, or Angular)</span></p></li><li><p><span>Backend development experience with Node.js or similar server-side JavaScript frameworks</span></p></li></ul><p><span><strong>Integration &amp; Automation:</strong></span></p><ul><li><p><span>Hands-on experience with iPaaS platforms: Zapier, Workato, or n8n</span></p></li><li><p><span>Ability to design and implement complex multi-system integrations</span></p></li><li><p><span>Experience building custom connectors and middleware solutions</span></p></li><li><p><span>Understanding of event-driven architectures and webhook implementations</span><br></p></li></ul><h5>About us</h5><p>Our platform provides customers with an immutable, historical archive of their data in systems such as Microsoft 365, Google Workspace, Salesforce, Entra ID, Dynamics 365, and Zendesk.</p><p>We protect our customers against everything, ranging from ransomware to simple accidents.</p><p>The majority of our back-end components are written in clean, modern C++ using mainly purpose-built components. Components responsible for business processes and data mining are built using Common Lisp. Everything runs on Linux.</p><p>We pride ourselves on backing up billions of objects over foreign APIs using imperfect networks on systems with finite memory and making it all happen in a performant, reliable, and predictable way.</p><p><strong>As we collaborate across locations, English is our primary language. Please submit your CV in English to support the review process.</strong></p><h5>We offer:</h5><p><strong>In Poland</strong></p><ul><li><p>Official employment – Umowa o pracę contract</p></li><li><p>4 additional working days of vacation leave per full calendar year </p></li><li><p>3 days of internal sick leave without a doctor`s note </p></li><li><p>Health and Life Insurance</p></li><li><p>Employee Capital Plan (PPK)  </p></li><li><p>Multisport card compensation  </p></li><li><p>Coverage of professional training sessions, meetups, etc.</p></li><li><p>English-speaking club with native speakers </p></li><li><p>Polish language classes</p></li><li><p>Internet and Glasses reimbursement</p></li><li><p>Cosy office in Krakow city centre (Długa, 72) with beverages, fruit, and cookies </p></li><li><p>Winter and summer parties, events, team-buildings </p></li></ul><p><strong>In Copenhaggen:</strong></p><ul><li><p>Competitive salary</p></li><li><p>Pension scheme</p></li><li><p>A modern, energetic global work environment</p></li><li><p>Flexible work-life balance supported by a hybrid working model</p></li><li><p>Regular team-building activities</p></li><li><p>Opportunities for professional development and career advancement</p></li><li><p>Compensation is based on experience and skill set</p></li></ul><p><em>We kindly ask you not to provide us with any sensitive categories of personal data when applying for a job with us.</em> <em>When applying for the vacancy, Keepit will process your personal data, and therefore we recommend that you also&nbsp;</em><strong><em>read our&nbsp;</em></strong><a target="_blank" href="https://www.keepit.com/job-applicant-privacy-policy/"><strong><em>privacy policy</em></strong></a><em>, which describes our processing of personal data and your rights as a data subject.</em><br></p><p><em>If you notice any misconduct or irregularities that fall within the scope of our whistleblowing procedure, please click </em><a target="_blank" id="menur96o" href="https://keepit.integrityline.com/"><em>here</em></a><em> to report them.</em></p>

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