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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer - **Company:** Thinkproject - **Location:** UTRECHT, Netherlands - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Applications Architecture, Application Performance Management, Unit Testing, Microsoft Azure, Cloud Computing, Software Quality, Code Review, Relational Databases, DevOps, Distributed Systems, Java Platform Enterprise Edition (J2EE), Hibernate (Java), Java Persistence API, Junit, Apache Maven, Enterprise Messaging Systems, Microsoft SQL Server, OAuth, Object-Oriented Software Development, Scrum Methodology, RabbitMQ, Redis, Mockito, SQL Databases, Web Applications, Multithreading, Enterprise Software Applications, Application Enhancement Tool, Backend, Containerization, Kubernetes, Apache Kafka, Front End Software Development, Restful APIs, Docker, Microservices - **Published:** June 12, 2026 - **Apply:** https://careers.thinkproject.com/Senior-Java-Developer-fmd-eng-j1605.html ## About the Role We are looking for a highly skilled Senior Java Developer (f/m/d) with 7-10 years of hands-on experience in building scalable, reliable, and high-performance enterprise applications. The ideal candidate has strong core Java expertise, solid experience with modern backend frameworks, and the ability to take ownership of complex modules while collaborating effectively with cross-functional teams. The ideal candidate is passionate about building excellent user experiences and actively embraces AI-powered tools and workflows to accelerate development, improve consistency, and enhance code and UI quality., * 7- 10 years of professional experience in Java application development. * Strong proficiency in Core Java, including OOP concepts, collections, multithreading, and exception handling. * Hands-on experience in designing and consuming RESTful APIs. * Strong understanding of SQL and relational databases (Microsoft SQL Server). * Experience with ORM frameworks such as Hibernate / JPA. * Working knowledge of build and dependency management tools (Maven / Ant). * Understanding of unit testing frameworks (JUnit, Mockito). * Experience working in Agile/Scrum development environments., and maintainable web applications. Nice-to-Have (Bonus Skills) * Familiarity with microservices architecture and distributed systems concepts. * Familiarity with containerization technologies (Docker, Kubernetes). * Exposure to messaging systems (RabbitMQ, Kafka). * Experience with in-memory Cache (Redis). * Basic knowledge of security concepts (OAuth2, JWT). * Experience with CI/CD pipelines (Azure DevOps). * Knowledge of cloud-based solutions (Azure). Soft Skills * Strong analytical and problem-solving skills. * Excellent communication and collaboration abilities. * Ability to mentor team members and guide UI and code quality standards. * Ownership mindset: capable of taking features from design through development to deployment independently. ## Description * Design, develop, test, and maintain Java-based backend applications. * Build scalable and secure services using Java / J2EE. * Design and develop RESTful APIs and integrate with front-end and third-party systems. * Contribute to application architecture and design discussions, ensuring best practices are followed. * Write clean, maintainable, and efficient code with appropriate documentation. * Perform code reviews and provide constructive feedback to improve overall code quality. * Optimize application performance, reliability, and scalability. * Collaborate with product owners, architects, QA, and DevOps teams throughout the development lifecycle. * Participate actively in Agile/Scrum ceremonies and contribute to continuous improvement initiatives. * Participate in architecture discussions, propose technical improvements, and mentor junior developers. * Leverage AI-powered tools and workflows to improve development efficiency through and code quality ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [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) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) ## Related Articles - [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development) - [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) - [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) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)