2h ago

Senior Java Backend Engineer

Berlin
full-timesenior Hybride-commerce

Tech Stack

Description

In this role, you'll design, build, and scale high-performance backend systems using modern Java and cloud-native architectures. You'll work on microservices, event-driven systems, GraphQL APIs, and contribute to AI-enabled features while mentoring junior engineers.

Requirements

  • 8+ years of professional backend development experience
  • Strong expertise in Java 11+ (ideally 17)
  • Extensive experience with Spring Boot and Spring Reactive
  • Solid knowledge of MySQL and NoSQL databases (DynamoDB, MongoDB)
  • Hands-on experience with Kubernetes and microservice architecture

Responsibilities

  • Design, develop, and maintain scalable backend services using Java 17+
  • Build and evolve microservice-based and event-driven architectures
  • Develop APIs using GraphQL with Spring Boot and Spring Reactive
  • Optimize data models using MySQL and NoSQL databases (DynamoDB, MongoDB)
  • Mentor junior engineers and contribute to architectural decisions
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