Senior Java Backend Engineer

We are looking for a Senior Java Backend Engineer to join our Engineering team in Berlin or remotely from Germany. In this role, you will design, build, and scale high-performance backend systems using modern Java technologies and cloud-native architectures.

What you'll do

• Design, develop, and maintain scalable backend services using Java 17 or other recent versions (11+)
• Build and evolve microservice-based and event-driven architectures
• Develop APIs using GraphQL
• Work with Spring Boot and Spring Reactive (WebFlux)
• Design and optimize data models using MySQL and NoSQL databases (DynamoDB or MongoDB)
• Ensure high performance, reliability, and scalability of backend systems
• Write clean, maintainable, and well-tested code
• Mentor junior engineers and provide technical leadership when needed

What you'll need

• 8+ years of professional experience in backend development
• Strong expertise in Java 17 or other recent versions (11+)
• Extensive experience with Spring Boot and Spring Reactive
• Solid knowledge of MySQL and experience with NoSQL databases (DynamoDB or MongoDB)
• Hands-on experience with Kubernetes
• Strong understanding of microservice architecture and event-driven systems
• Experience building and consuming GraphQL APIs
• Excellent understanding of software design and architectural patterns

Nice to have

• Cloud experience (AWS/GCP/Azure)
• Experience with CI/CD pipelines
• Experience building AI-integrated backend systems

What they offer

• 32 days of paid vacation plus your birthday off
• Flexible hybrid working scheme
• Learning budget and internal training
• Mental health coaching
• Sabbatical option after three years
• Global and local get-togethers