Senior Kotlin/Java Software Developer – API and Microservices

Senior Kotlin/Java Software Developer – API and Microservices Krakow Hybrid AWS Azure GCP HTML Java Javascript Jenkins Kotlin SQL English Expert, Senior Banking, Corporate Banking, Investment Banking Developer Unleash Innovation — Drive the Future of Microservices and API Development! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Kotlin/Java Software Developer, you will be working for our client, a leader in developing cutting-edge software solutions. You will contribute to building a robust platform that empowers development teams to ensure compliance with essential software controls. Your expertise will help shape scalable, microservice-based web applications that are at the forefront of digital transformation, offering you the opportunity to grow within a dynamic environment and pioneer innovative solutions. Your main responsibilities: Collaborate with cross-functional teams to design, develop, and implement both front-end and back-end features aligned with project priorities. Build and optimize APIs and microservices to address impactful business challenges. Contribute to the development of Kotlin and Java-based web applications within a microservice architecture. Work closely with testers and stakeholders to ensure high-quality deliverables, implementing automation and performing peer code reviews. Participate actively in an agile CI/CD environment to support rapid, reliable releases. Proactively troubleshoot and resolve technical issues, providing effective solutions. Maintain up-to-date knowledge of best practices in microservices, API development, and cloud technologies. You're ideal for this role if you have: At least 8 years of professional experience in software development. Proven expertise in Kotlin (or Java with a willingness to learn Kotlin). Hands-on experience in 2-3 of the following: API development, SQL/databases, HTML/JavaScript. Strong troubleshooting skills and analytical mindset. Experience working within Agile environments, utilizing Jira and Confluence. Good understanding of microservices architecture. Fluent in English (B2+ level). It is a strong plus if you have:  Working knowledge of cloud platforms such as AWS, Azure, or GCP. Experience building CI/CD pipelines with Jenkins. Background in Systems Administration across Linux, AIX, or WAS platforms. Language Required for the role: Fluent English (B2+ level). Eligibility to work on this role: Only candidates with an existing legal right to work in Europe will be considered for this role.