Senior Backend Developer | Node.js + Fastify | Hybrid Brussels

Orbis Group, in partnership with a Brussels-based startup, seeks a Senior Backend Developer to join a high-priority fleet management project. You will work on production-grade APIs and services, own feature delivery, and contribute across both new development and bug fixes.

The role is Brussels/Hybrid with an initial 3-month contract at circa €500/day, with potential to extend; you will integrate into an existing codebase and collaborate with an agile team in a fast-paced environment.