Senior Full-Stack Developer (TypeScript/Node.js/Angular) – Brussels

About the role

We are looking for a Senior Full‑Stack Developer to design, build and maintain the software behind a large‑scale connected device platform. The role combines backend services, frontend applications and IoT integrations in a modern event‑driven environment, based in Brussels with a hybrid work model.

Key responsibilities

• Design, develop and maintain scalable applications using TypeScript, Node.js (NestJS) and Angular.
• Build and optimise backend APIs that communicate with connected hardware and central platforms.
• Create responsive front‑end tools for internal and customer‑facing use.
• Integrate and manage IoT devices via MQTT and real‑time communication patterns.
• Design, model and tune PostgreSQL databases for performance and reliability.
• Contribute to architecture decisions around scalability, security and maintainability.
• Collaborate with product owners, hardware engineers and operations, ensuring high code quality through reviews and testing.

Required profile

• Strong sense of ownership and an improvement‑oriented mindset.
• Ability to work independently, communicate clearly and mentor junior developers.

Required skills

• TypeScript (frontend & backend)
• Node.js with NestJS
• Angular
• PostgreSQL (data modelling & performance tuning)
• IoT communication – MQTT, RESTful APIs, real‑time patterns
• Microservices & event‑driven architectures
• Basic AWS services
• Docker (preferably ECS)
• CI/CD pipeline concepts

What we offer

• Fixed‑term contract (3 months) with high ownership on a business‑critical platform.
• Hybrid work in Brussels (minimum 3 days onsite).
• Opportunity to work on a modern event‑driven architecture linking software with physical devices.
• Broad technical scope across backend, frontend, IoT and system design.