Senior Full-Stack Java / Angular Developer

Brussels | Hybrid | Freelance | ASAP | Long-term

We’re looking for a strong Senior Full-Stack Developer with solid Java, Angular and Python experience to join a long-term digital modernisation project in Brussels.

The team is currently rewriting and modernising a number of legacy business applications, moving them towards a new architecture and more modern development standards.

You’ll join a 6-person development team made up of developers, a business analyst and a project manager.

What you’ll be doing

Rewriting and modernising existing legacy applications

Developing new functionality within a redesigned architecture

Analysing existing applications and translating legacy behaviour into modern solutions

Using Python to support and facilitate the migration and rewriting of legacy applications

Developing robust back-end and front-end solutions

Working with REST APIs and event-driven architectures

Collaborating closely with analysts and the business to understand functional requirements

Contributing to technical decisions and continuous improvements

Working in an Agile environment with a well-structured backlog

A key part of the challenge is understanding an existing and sometimes complex application landscape quickly, including functionality hidden in legacy batch processes.

Tech stack

Must-have

Strong Java development experience

Strong Angular experience (5+ years)

Python – required for the application modernisation/migration work

Spring Boot

REST / API-first development

Java EE / JSF knowledge

RabbitMQ / event-driven architecture

Keycloak

Agile experience

The profile

We’re looking for someone who is technically strong, autonomous and able to get up to speed quickly in an existing environment.

You Should Be

A fast learner

Autonomous and proactive

Comfortable working in a team

Open to feedback and different perspectives

Pragmatic and solution-oriented

More interested in delivering quality solutions than taking a leadership role

Practical details

📍 Brussels – hybrid, 2 days/week on-site

📅 Start: ASAP

⏳ Duration: Long-term

💼 Freelance – full-time

🌍 Languages: French or Dutch + English

🗓️ Team day: First Tuesday of each month

Java / Angular / Python Developer

Functieomschrijving