Full-Stack Developer (Java), Remote (EU) - European Commission

We are seeking an experienced Full-Stack Java Developer to join a European Commission project, working remotely from within the EU. The role involves developing, maintaining, and optimizing scalable web applications across both front-end and back-end layers, with a strong focus on Java, Spring Boot, REST APIs, microservices, and modern web technologies. The successful candidate will contribute to the design and delivery of secure, high-performance enterprise solutions, collaborate with international Agile teams, and ensure high standards of code quality, testing, and technical documentation. Candidates should have at least 6 years of Full-Stack Java development experience, a Bachelor's degree, and English proficiency at C1 level; French (B1) is considered an advantage., * Development and maintenance of scalable front-end and back-end web applications using Java-based technologies.

• Design and implementation of user interactions and responsive web interfaces.
• Development of enterprise-level back-end applications and services.
• Implementation of core business logic and complex business workflows.
• Design, development, and maintenance of APIs and microservices architectures.
• Creation and management of application components, databases, and server-side functionalities.
• Ensuring application security, data protection, and compliance with security standards.
• Cross-platform optimisation and responsive application development.
• Participating in the design and implementation of scalable and high-performance software solutions.
• Taking technical ownership and leading development activities when required.
• Ensuring code quality, integrity, maintainability, and organisation.
• Writing clean, efficient, and well-documented code for front-end and back-end components.
• Analysing application performance, processes, and code to troubleshoot issues and identify improvement opportunities.
• Performing unit testing, integration testing, debugging, and resolution of software defects.
• Ensuring solutions meet both technical requirements and end-user expectations.
• Writing and maintaining technical documentation, architecture documentation, and development guidelines.
• Participating in Agile ceremonies, including sprint planning, daily stand-ups, reviews, and retrospectives.
• Collaborating with architects, business analysts, testers, and other development teams in an international environment.

Minimum experience: At least 6 years of specific professional experience in FullStack Java development.

Start date: 10/2026.

Studies required: Bachelor degree of 3 years.

Language: English (C1) MANDATORY + French (B1) will be an advantage., * Strong proficiency in Java programming language and object-oriented programming principles.

• Excellent knowledge of Java enterprise frameworks such as Spring Framework, Spring Boot, Spring MVC, and Spring Data.
• Good knowledge of front-end technologies such as JavaScript, HTML5, CSS3, and modern JavaScript frameworks/libraries (e.g. Angular, React, or equivalent).
• Experience in designing and developing RESTful APIs and web services.
• Good understanding of microservices architecture and distributed systems.
• Strong knowledge of database technologies such as PostgreSQL, Oracle, MySQL, or equivalent relational databases.
• Familiarity with ORM frameworks such as Hibernate/JPA.
• Knowledge of application servers and Java platforms (e.g. Tomcat, JBoss/WildFly, WebLogic, or equivalent).
• Experience with software version control tools such as Git or GitLab.
• Knowledge of CI/CD pipelines and DevOps practices.
• Knowledge of software development methodologies (e.g. AGILE/Scrum).
• Experience with software testing practices and tools (e.g. JUnit, Mockito, Selenium, or equivalent).
• Capability of integration in an international/multicultural environment, rapid self-starting capability, and experience working within distributed teams.
• Ability to participate in multilingual meetings.
• Ability to work in a multicultural environment on multiple large-scale projects.
• Excellent team player with strong communication and collaboration skills.
• Ability to understand, speak, and write English; French (B1) will be an advantage.
• High degree of discretion and integrity is required as the applications managed and maintained may contain personal and confidential data.

Specific expertise:

• At least six years of specific professional experience in FullStack Java development
• Proven experience in Java backend development using Java 8+ and Spring/Spring Boot frameworks.
• Strong experience in designing and developing REST APIs and enterprise applications.
• Experience with front-end development technologies and integration with Java-based back-end systems.
• Experience contributing to the design and implementation of scalable, secure, and maintainable software solutions.