Full Stack Developer – React & Node.js

About the role

Our client, a leading player in the energy sector, is looking for a Full Stack Developer to help migrate an internal platform to a modern content management system and ensure its long‑term performance. The role combines backend and frontend development, performance optimisation and observability work in a hybrid Brussels environment.

Key responsibilities

• Migrate the existing internal platform to SitecoreAI.
• Conduct code reviews focused on performance, scalability and security.
• Optimise platform performance through caching, database tuning and CDN/WAF improvements.
• Enhance monitoring and logging using Azure Monitor or Application Insights.
• Participate in defining SLA/OLA, incident and change management processes.
• Document technical and security changes in line with governance and audit requirements.

Required profile

• 2+ years professional experience in backend development with Node.js.
• 2+ years professional experience in frontend development with React.
• 1+ year experience with Python and FastAPI.
• 1+ year experience with Node.js‑based headless CMS platforms.
• Experience deploying services in the Cloud and using DevOps pipelines.
• Bachelor’s or Master’s degree in Computer Science or IT.
• Fluent in English and French or Dutch.

Required skills

• Node.js
• React
• Python
• FastAPI
• Headless CMS (Node.js based)
• Azure Cloud services
• DevOps and CI/CD pipelines
• Azure Monitor / Application Insights
• Caching, database tuning, CDN, WAF
• SitecoreAI (preferred)
• NestJS (nice to have)
• NextJS (nice to have)
• TypeScript (nice to have)

What we offer

• Start date: ASAP
• Long‑term project, full‑time
• Hybrid working model in Brussels
• Open to permanent employment or freelance contracts