Software Development Engineer III (Java Backend)

At SIXT, we are engineering the future of mobility — one system at a time. As a Senior Backend Engineer in our BranchOps team, you will engineer the systems that power the full vehicle turnaround lifecycle and branch-level fleet orchestration, with deep integration into our IoT-connected fleet infrastructure. This is a role where backend engineering meets real-world operations at scale, in a team that builds with purpose and moves with pace. If this sounds like your next move, apply now and become part of something bigger. YOUR ROLE AT SIXT You will design and build robust backend services in Java that power vehicle turnaround and fleet orchestration workflows You will contribute to the design and evolution of distributed, event-driven systems that operate at branch level and at global scale You will develop and maintain shared libraries and internal tooling that improve reliability and delivery speed across the BranchOps engineering team You will collaborate closely with product, operations, and engineering stakeholders to translate complex business workflows into scalable technical solutions You will actively integrate AI coding tools such as Claude and Cursor into your daily development workflow, helping to embed AI-assisted engineering as a standard practice within the team YOUR SKILLS MATTER You hold a B.Tech, B.E., or Master's Degree in Computer Science or a closely related discipline You bring 7–9 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) and are confident navigating a modern microservices landscape end to end You have designed or operated distributed systems and microservices architectures, with a clear understanding of the trade-offs that come with operating at scale You have a solid grasp of