Backend Developer (w/m/d) - Kotlin/Java

We are looking for a Senior Backend Developer who takes ownership and thinks about backend systems from initial concept through to production. The ideal candidate will have several years of experience as a Backend Developer, strong proficiency in Kotlin or Java, and solid understanding of modern backend development principles and architectures.

Requirements

• Designing and implementing scalable server-side architectures and database models
• Developing, maintaining, and evolving high-performance, secure, and maintainable backend services
• Owning API design, versioning, and lifecycle management
• Collaborating closely with frontend teams to integrate user-centric features
• Building and operating scalable infrastructure for AI workloads and external API integrations
• Ensuring high software quality through automated testing
• Actively monitoring and evaluating new technologies and architectural trends

Benefits

• Full coverage of a Germany-wide public transport ticket
• Dog-friendly office
• Corporate benefits platform with attractive offers and discounts
• Company pension scheme with a 20% employer contribution
• Regular company and team events
• Free drinks, fresh fruit, and muesli