Junior Full Stack Developer Java (Spring Boot) / Angular

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About the Role

RELYzIT Talent is seeking a Junior Full Stack Developer (Java Spring Boot / Angular) for a transformative public sector project in Belgium. This freelance opportunity places you at the heart of a mission-critical application overhaul, where your code will directly impact regulatory transparency and operational efficiency for thousands. You’ll join a collaborative, agile team, working alongside business experts and technical leaders to deliver a next-generation regulatory management platform with full traceability and robust integrations.

Why This Role Matters

Our client is replacing a legacy business application with a modern, secure, and fully traceable regulatory management system. Your work will ensure seamless migration of sensitive data, empower administrators with configurable business rules, and provide external users with secure, intuitive access. The stakes are high: this platform underpins regulatory compliance, financial calculations, and public trust. As a builder, your contributions will shape the digital backbone of public administration for years to come.

Key Responsibilities

• Collaborate with business analysts and project managers to refine the product backlog and contribute to functional analysis.


• Design data models and application architecture in close coordination with the project architect.


• Develop robust back-end services using Java and Spring Boot, ensuring scalability and maintainability.


• Build responsive back-office interfaces for administration staff and integrate front-office features with the existing online portal using Angular.


• Implement and maintain integrations with third-party systems, including accounting tools and official data sources via RESTful web services.


• Ensure security best practices, especially for features exposed to external users, and comply with all operational and technology standards.


• Write and execute unit tests, proactively identify and resolve anomalies, and contribute to continuous improvement.


• Participate in data migration from the legacy system, including scripting and reporting.


• Deploy application increments to administration environments, ensuring each release is tested, versioned, and documented.


• Produce clear, rigorous technical and functional documentation in line with project standards.


• Engage in agile ceremonies (Scrum), working closely with the Scrum Master, business team, and fellow developers.

Technical Skills

• Proficiency in Java development with Spring Boot (Junior level)


• Front-end development using Angular (Junior level)


• Solid understanding of SQL and relational databases


• Experience with RESTful web services


• Familiarity with unit testing methodologies


• Exposure to Agile methodologies, particularly Scrum


• Ability to contribute to functional analysis and translate business needs into technical solutions

Language Proficiency

• Fluent French required: must be able to communicate clearly with non-technical business users and project stakeholders

Other Requirements

• Freelance position: 12-month contract, partial remote work possible


• Mandatory on-site presence during core hours: 9:30 AM – 12:00 PM and 2:00 PM – 4:00 PM (8-hour workday)


• Ability to handle confidential and personal data with the utmost integrity


• Strong teamwork skills: collaborate effectively with analysts, Scrum Master, and business experts


• Autonomous, responsible, and rigorous in documentation and delivery


• Analytical and synthesis skills to distill complex requirements into actionable solutions


• All candidates will be evaluated via the VECTOR7™ Signal Stack: a multi-signal vetting process ensuring only elite builders join our community