> Markdown version of [/jobs/ext/1525163-java-developer-hybrid](https://www.wearedevelopers.com/jobs/ext/1525163-java-developer-hybrid). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer (Hybrid) - **Company:** Amaris - **Location:** Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Performance Management, Software Quality, Databases, Continuous Integration, Couchbase Servers, PostgreSQL, Enterprise Messaging Systems, Oracle (Applications), Performance Tuning, RabbitMQ, Redis, SonarQube, Spring-boot, Caching, Backend, Apache Kafka, Microservices - **Published:** July 31, 2026 - **Apply:** https://careers.mantu.com/apply ## About the Role * 7+ years of experience in Java backend development * Strong knowledge of Spring Boot and microservices * Experience with messaging systems (RabbitMQ/Kafka) * Familiarity with databases (Oracle, PostgreSQL) and caching systems * Experience in CI/CD pipelines and code quality practices * Solid understanding of concurrency, transactions, and performance optimization * Fluent in Turkish and English * Strong analytical thinking and communication skills If you're passionate about Java, microservices, and building scalable systems, we'd love to hear from you! ## Description We are looking for a Senior Java Backend Developer to join our international team and contribute to the design, development, and optimization of scalable backend systems., * Develop and maintain backend applications using Java 17/21 & Spring Boot * Design and implement microservice architectures * Work with RabbitMQ/Kafka, Redis/Couchbase, and Oracle/PostgreSQL * Contribute to system modernization and transformation projects * Ensure high performance, scalability, and code quality * Participate in CI/CD processes and use tools like SonarQube * Make architectural decisions and optimize application performance ## Related Videos - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [Database Magic behind 40 Million operations/s](https://www.wearedevelopers.com/videos/748-database-magic-behind-40-million-operations-s) - [Event based cache invalidation in GraphQL](https://www.wearedevelopers.com/videos/433-event-based-cache-invalidation-in-graphql) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)