Software Development Engineer III (Java Backend)

Job Description

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.

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 Masters degree in Computer Science or similar discipline
• You have 7 to 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), with confidence navigating a modern microservices landscape end to end
• You have experience designing or operating distributed systems and microservices architectures, with a clear understanding of the trade-offs that come with operating at scale
• You have solid grasp of event-driven patterns, pub-sub models, and message brokers such as Apache Kafka
• You active user of AI coding assistants such as Cursor and Claude to accelerate your work, while confidently recognising their limitations and knowing when engineering judgment must take precedence

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.