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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Engineer - **Company:** Faktion Bv - **Location:** Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Spring Security, Artificial Intelligence, Amazon Web Services, Apache Tomcat, Applications Architecture, Microsoft Azure, Software Quality, Code Review, Middleware, Github, Gradle, Monitoring of Systems, Hibernate (Java), IBM Websphere Application Server, Java Persistence API, JSON, WildFly (JBoss AS), Junit, Machine Learning, Apache Maven, Object-Oriented Software Development, Oracle (Applications), Performance Tuning, Software Architecture, Mockito, Azure Machine Learning, Software Deployment, Software Systems, Extensible Markup Language (XML), Data Processing, Enterprise Software Applications, Postman, GitHub Copilot, Spring-mvc, Spring-boot, SOAPAPI, Spring Data, Event Driven Architecture, Containerization, Integration Tests, Kubernetes, Information Technology, Machine Learning Operations, Api Design, Restful APIs, Api Management, Docker, Microservices - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/senior-java-engineer-faktion-bv-8696743 ## About the Role * Excellent written and verbal communication skills in native Dutch and English (French is a plus). * BSc/BA in Computer Science, Engineering, or a related field (MSc is a plus). * Minimum 8 years of hands-on experience in Java backend development, with a proven track record delivering enterprise-grade applications. * Strong knowledge of Java and the pillars of OOP. You know when and how to apply concurrency. You are inspired by Robert C. Martin * Strong experience with RESTful API design and development, and with REST/SOAP services and XML/JSON integrations. * Proficiency with Maven and/or Gradle. * Solid understanding of application architecture patterns such as layered architecture, microservices, and event-driven systems. * Strong experience with the Spring ecosystem, including Spring Boot, Spring MVC, Spring Data, and Spring Security. * Good knowledge of Hibernate/JPA. * Experience deploying and managing applications on Azure and/or AWS, and with enterprise application servers such as JBoss, WildFly, WebSphere, or Oracle Middleware, and runtimes such as Tomcat. * Comfortable with application deployment, configuration, and runtime behaviour in production environments. * Experience with API-driven integrations and messaging patterns, and a solid understanding of distributed and event-driven architectures. * Strong grasp of testing principles and practices, with experience establishing comprehensive testing strategies (unit, integration, end-to-end). * Exceptional analytical mind with strong problem-solving aptitude and the ability to tackle complex technical challenges and make sound architectural decisions. * Experience with CI/CD pipelines (e.g., Azure DevOps, GitHub Actions) and containerization/orchestration technologies (e.g., Docker, Kubernetes). * Demonstrated ability to coach and mentor junior developers, fostering a collaborative and productive environment. * Excellent organizational and interpersonal skills. Following experiences are a plus: * Familiarity with AI-assisted development tools such as GitHub Copilot. * Basic understanding of AI/ML services and API integrations, and the ability to assess AI-generated solutions from a quality, security, and maintainability perspective. * Hands-on experience with AI technologies, including integrating AI models into applications or working with AI-driven product features. * Familiarity with data processing, MLOps, and machine learning concepts and workflows. * Prior experience in software startups and corporate environments, providing balanced strategic insights. * Active contributions to open-source projects or strong engagement with the tech community. ## Description * Lead the design, development, and deployment of high-quality software architecture for complex, scalable backend applications built on Java and the Spring ecosystem. * Collaborate closely with AI and ML engineers, Product Managers, and Business Stakeholders to translate complex requirements into efficient, high-quality software solutions. * Contribute to and help define maintenance standards across projects ranging from new applications and functionalities to complex cross-project developments. * You know how to test your software using JUnit, Mockito, ... You have experience setting up automated integration tests using Postman or other libraries * Lead code reviews, provide constructive feedback, and ensure code quality, maintainability, and scalability. * Ensure comprehensive documentation of architectural decisions, development phases, and system designs; contribute to system monitoring, performance optimization, and incident resolution. * Coach and mentor junior developers, fostering a culture of technical excellence, collaboration, and continuous improvement. * Drive technical innovation, evaluate and recommend new technologies, and promote best practices within the engineering team. ## Related Videos - [Hiring AI Native Talents](https://www.wearedevelopers.com/videos/100268-hiring-ai-native-talents) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) ## Related Articles - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [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) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)