Senior Java Engineer (m/f/d)

📋 Description

• You design and ship backend Java services that thousands of customers depend on every day
• You own customer-facing distributed systems end to end, from understanding the real problem behind
• You bring engineering judgment into every conversation with Product Owners and stakeholders
• You design and build the services, features, and tooling that power our platform, from
• You build it, you run it, you own it: full end-to-end responsibility, including on-call, for
• You work agent-first by default: implementation runs through agents, judgment and ownership stay

🎯 Requirements

• Experience: You have development experience in Java, and Spring Boot is a must. Familiarity with Go
• Architecture: You are experienced in microservices and event-driven architectures, and know how to
• Data Stores: You have worked with PostgreSQL, JPA/Hibernate, Flyway, Redis, and Kafka, and
• Operations: You are comfortable owning services in production, improving them through
• AI-Native Engineering: You run agentic workflows end to end: orchestrating agents, judging their
• Curiosity: You're genuinely curious about the customer's problem, not just the code. You move

🎁 Benefits

• Extra benefits: Enjoy discounts on SIXT rent, share, ride and SIXT+, attractive vehicle leasing
• Mobility boost: We support you with a monthly mobility allowance of €20 per month for even more
• Future security: We contribute to your retirement plan and support you with capital-forming
• Feel-good atmosphere: Stay active with our modern SIXT gym, various leisure activities like the
• Flexibility: Enjoy 30 days of vacation and a hybrid working model with flexible hours
• Giving back: Take one day each year to volunteer at a charitable organization dedicated to