Senior Kotlin Engineer (m/f/d) - B2B Sales & Distribution team

<p data-renderer-start-pos="1" data-local-id="f93ce731e6b5"><span style="font-size: 12pt;">At Flix, we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.</span></p> <p data-renderer-start-pos="185" data-local-id="4a4166fe119b"><span style="font-size: 12pt;">B2B Sales &amp; Distribution team in Demand Division<strong> </strong>builds and operates the backend platform powering Flix's partner-facing ecosystem — including a self-management platform for partners, a back office portal for internal users, and an AI agentic bot supporting partner operations. As a&nbsp;<strong>Senior Kotlin Backend Engineer</strong> (m/f/d), you can make an impact by supporting</span><span style="font-size: 12pt;"> a significant modernization of backend architecture and working in an AI-native development environment.</span></p> <h2 id="About-the-Role" data-local-id="b48ca0ff0ffa" data-renderer-start-pos="461"><span style="font-size: 24pt;"><strong data-renderer-mark="true">About the Role</strong></span></h2> <ul> <li style="font-size: 12pt;" data-renderer-start-pos="479" data-local-id="0c8963566039"><span style="font-size: 12pt;">Design and develop backend services in Kotlin and Spring Boot</span></li> <li style="font-size: 12pt;" data-renderer-start-pos="544" data-local-id="ef75db9309bc"><span style="font-size: 12pt;">Build and maintain REST APIs used by internal and external partners</span></li> <li style="font-size: 12pt;" data-renderer-start-pos="615" data-local-id="cb51cda8252d"><span style="font-size: 12pt;">Participate in architectural decisions and technical modernization initiatives</span></li> <li style="font-size: 12pt;" data-renderer-start-pos="697" data-local-id="16b17b379c06"><span style="font-size: 12pt;">Improve observability, performance, and reliability of backend systems using DataDog</span></li> <li style="font-size: 12pt;" data-renderer-start-pos="785" data-local-id="62b6e1866e33"><span style="font-size: 12pt;">Contribute to CI/CD pipelines and cloud infrastructure on AWS and Kubernetes</span></li> <li style="font-size: 12pt;" data-renderer-start-pos="785" data-local-id="62b6e1866e33"><span style="font-size: 12pt;">Work in and contribute to an AI-native development environment — including AI-integrated code review automation and an internal Claude Code plugin marketplace covering engineering standards: Kotlin/Spring Boot conventions, architectural patterns, testing practices, database guidelines, and team-specific conventions.</span></li> </ul> <h2 id="About-You" data-local-id="8bf2d8f0b45c" data-renderer-start-pos="1186"><span style="font-size: 24pt;"><strong data-renderer-mark="true">About You</strong></span></h2> <ul> <li data-renderer-start-pos="1199" data-local-id="56f2bd6e6056"><span style="font-size: 12pt;">5+ years of professional backend development experience with JVM languages with a</span><span style="font-size: 12pt;">t least 2 years of commercial experience with Kotlin</span></li> <li data-renderer-start-pos="1199" data-local-id="56f2bd6e6056"><span style="font-size: 12pt;">Hands-on experience with Spring Boot&nbsp;</span></li> <li data-renderer-start-pos="1381" data-local-id="473a960b254f"><span style="font-size: 12pt;">Experience building and maintaining REST APIs and distributed systems</span></li> <li data-renderer-start-pos="1454" data-local-id="f10746b5d50f"><span style="font-size: 12pt;">Solid SQL knowledge and relational database design, including <span data-highlighted="true" data-vc="highlighted-text"><span class="_1mT5xdRAKS"><span class="_0nmozVaHVx _2V7sgO2M4S _3BoeIDwZ7G _30zrXRyxdf _0ReiIH7zJH" data-testid="definition-highlighter">MySQL</span></span></span> and PostgreSQL</span></li> <li data-renderer-start-pos="1540" data-local-id="580911d360d6"><span style="font-size: 12pt;">Sound software engineering fundamentals, clean code practices, and familiarity with <span data-highlighted="true" data-vc="highlighted-text"><span class="_1mT5xdRAKS"><span class="_0nmozVaHVx _2V7sgO2M4S _3BoeIDwZ7G _30zrXRyxdf _0ReiIH7zJH" data-testid="definition-highlighter">ORM</span></span></span> and persistence layers</span></li> <li data-renderer-start-pos="1654" data-local-id="013badb4f2e0"><span style="font-size: 12pt;">Collaborative and pragmatic, comfortable working in cross-functional Agile teams</span></li> <li data-renderer-start-pos="1738" data-local-id="8c4090006ab5"><span style="font-size: 12pt;">Preferred: AWS, Kubernetes, GitLab CI/CD, Kafka, Terraform, LLM integrations, RAG systems, AI product development, or legacy system migration experience</span></li> </ul> <p data-renderer-start-pos="1894" data-local-id="5c960aa34d49"><span style="font-size: 12pt;">We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!</span></p> <p><span style="font-size: 24pt;"><strong>What We Offer</strong></span></p> <ul> <li data-renderer-start-pos="11445"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Travel perks</strong>: 12 free Flix vouchers + 12 discount vouchers for friends &amp; family.&nbsp;</span></li> <li data-renderer-start-pos="11530"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Work from (M)Anywhere</strong>: Depending on your role, work from another location for up to 60 days per year.&nbsp;</span></li> <li data-renderer-start-pos="11636"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Hybrid work model</strong>: We are an office-first company, but we offer flexibility to balance work and life.&nbsp;</span></li> <li data-renderer-start-pos="11742"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Wellbeing support</strong>: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.&nbsp;</span></li> <li data-renderer-start-pos="11877"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Learning &amp; Development</strong>: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.&nbsp;</span></li> <li data-renderer-start-pos="12004"><span style="font-size: 12pt;"><strong data-renderer-mark="true">Mentoring Program</strong>: Connect with experienced colleagues to gain insights and accelerate your career.&nbsp;</span></li> </ul> <p style="line-height: 1.4;"><span style="font-size: 12pt;">To view more local benefits specific to each office location, please check out this link:&nbsp;<a href="https://flix.careers/locations/">Locations - Flix Career</a></span></p> <hr> <p style="line-height: 1.4;"><span style="font-size: 18pt;"><strong>Why Join Flix?</strong></span></p> <p style="line-height: 1.4;" data-renderer-start-pos="14351"><span style="font-size: 12pt;">At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.</span></p> <p style="line-height: 1.4;" data-renderer-start-pos="14569"><span style="font-size: 12pt;">If you're looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey!&nbsp;</span></p> <p style="line-height: 1.4;"><iframe src="https://www.youtube.com/embed/YlHz7TiiRAw" width="560" height="314"></iframe></p><p>Find more <a href="https://www.arbeitnow.com/english-speaking-jobs">English Speaking Jobs in Germany</a> on Arbeitnow</a>