Software Development Engineer III (Java Backend)

At SIXT, we are engineering the future of flexible mobility. As a Senior Backend Engineer in our SIXT+ Car Subscriptions team, you will build and scale the platform that powers flexible mobility for customers who choose access over ownership, across both app and web. You will work on high-impact challenges at the intersection of digital experience and subscription commerce, in a high-ownership environment built on cloud-native microservices where your engineering directly shapes how customers discover, subscribe, and stay. If you are ready to help drive the future of mobility, apply now and become part of Team Orange! YOUR ROLE AT SIXT You will build reliable, consumer facing backend software in Java that powers the SIXT+ Car Subscriptions platform, directly supporting seamless subscription experiences and retention at scale You will design and own end-to-end distributed systems on the cloud, balancing scalability, resilience, and engineering craft across our microservices ecosystem You will develop shared libraries and internal tooling that raise the delivery velocity of the entire SIXT+ engineering team You will work on event-driven architectures, keeping yourself ahead of emerging technologies to build solutions that grow with SIXT+ subscription and flexible mobility ambitions You will champion AI-assisted development as a core part of your engineering culture integrating tools such as Cursor and Claude into daily workflows while guiding the team on where human expertise must lead YOUR SKILLS MATTER You have B.Tech, B.E., or Master's degree in Computer Science or similar discipline You have 8 to 10 years of hands-on experience in sophisticated engineering environments including cloud-native application development, scalability problem-solving, and event-driven system design, ideally within a start-up or scale-up setting You have strong, production-proven experience with Java and Spring Boot (must-have), with confidence navigating a modern microservices landscape