Senior Java Developer – Energy Industry – Leipzig – up to €75k

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Senior Java Developer – Energy Industry – Leipzig – up to €80k We're partnering with an innovative software company developing high-performance systems that support the transition to renewable energy through automated trading technology. They're looking for a Senior Java Developer to join an engineering team building the services and data pipelines behind a real-time trading platform used across multiple European energy markets. This is a role for engineers who enjoy solving complex backend challenges rather than simply building REST APIs. What you'll be working on Designing and developing backend services with Java and Spring Boot Building reliable, scalable data processing pipelines for real-time systems Developing integrations with external platforms and market operators Improving platform performance, resilience and maintainability Writing high-quality unit and integration tests Participating in code reviews and technical discussions Collaborating closely with product and engineering teams to shape new functionality What they're looking for 5+ years of professional Java development experience Strong Spring Boot experience Experience building event-driven backend systems using Kafka, RabbitMQ or similar messaging technologies Good understanding of concurrency, asynchronous processing and scalable application design Experience with unit and integration testing Clean Code principles and object-oriented design Comfortable working with CI/CD and modern development practices What's on offer 30 days holiday Freshly prepared lunch every day Wellbeing benefits including fitness and health initiatives Personal development time each week Modern office in central Leipzig International engineering team with flat hierarchies and genuine technical ownership