> Markdown version of [/jobs/ext/4014978-java-full-stack-developer](https://www.wearedevelopers.com/jobs/ext/4014978-java-full-stack-developer). 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 Full Stack Developer - **Company:** Uni Systems - **Location:** Brussel, Belgium - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Clean Code Principles, HTML, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Business Logic, Confluence, JIRA, Microsoft Azure, Cascading Style Sheets (CSS), Static Program Analysis, Code Review, Relational Databases, Software Debugging, DevOps, Hibernate (Java), Spring Framework, PostgreSQL, Oracle Databases, Oracle (Applications), Performance Tuning, Fortify (Software), Software Deployment, SonarQube, TypeScript, Web Performance Optimization, Web Services, Software Organization, Spring-boot, Sonatype, Software Security, Gitlab, Git, Containerization, AngularJS, Information Technology, Front End Software Development, Restful APIs, Devsecops, Docker - **Published:** October 30, 2026 - **Apply:** https://www.adzuna.be/details/5945920417 ## About the Role * University degree corresponding to EQF Level 7 (Master's degree or equivalent 5 years of higher education). * Minimum 10 years of professional IT experience. * Very good command of English (B2 level or higher), both written and spoken. * Minimum 6 years of experience in Java application development. * Minimum 4 years of experience with the Spring Framework. * Minimum 4 years of experience developing front-end applications using Angular and TypeScript. * Minimum 2 years of experience with Hibernate and performance-optimized development using Oracle Database. * Experience working with large-scale enterprise Information Systems. * Strong expertise in Java, including Spring Boot, Hibernate, and REST API development. * Proficiency in Angular, TypeScript, JavaScript, HTML, and CSS. * Experience with relational databases such as PostgreSQL or Oracle. * Knowledge of Git/GitLab, JIRA, and Confluence. * Hands-on experience with static code analysis tools (e.g., SonarQube, Fortify, Snyk). * Experience working in Agile environments, with exposure to DevOps/DevSecOps practices. * Knowledge of cloud platforms (AWS, Azure) and CI/CD pipelines. * Experience with Docker and Kubernetes for application deployment and management. * Experience designing, developing, and securing RESTful APIs and web services. * Strong understanding of application security, performance optimization, and software development best practices. Certifications Oracle Certified Java Developer (Associate or Professional) or an equivalent Java certification. ## Description * Develop and maintain front-end applications using Angular and back-end services using Java. * Design, develop, and integrate APIs and scalable software solutions. * Implement core business logic and ensure application security best practices. * Build responsive, high-performance web applications across different devices and browsers. * Write clean, maintainable code and participate in code reviews and testing. * Troubleshoot, debug, and optimize applications to improve performance and reliability. * Prepare technical documentation and support application maintenance. * Collaborate with cross-functional teams to deliver end-to-end solutions across the full technology stack. * Deploy and manage applications using cloud platforms, CI/CD pipelines, and containerization technologies. * Bridge the gap between front-end and back-end developers, facilitating communication and ensuring cohesive integration of all system components.