Senior TypeScript (Back-End) Developer

📍 Location: Hybrid – Brussels (1 day per week in office)

✈️ Travel: Occasional travel between Belgium and the UK

🕒 Contract: 6 months (with potential extension)

🚀 Start date: ASAP

Position Overview

The client is seeking an experienced Senior TypeScript Developer, specialising in back-end development, to join their engineering team on a 6-month contract. The successful candidate will be responsible for designing, developing, and maintaining scalable APIs and cloud-based services that form the backbone of critical business applications.

This role suits a technically adept engineer who enjoys working in an autonomous, agile environment, is comfortable taking ownership of end-to-end solutions, and is committed to writing secure, maintainable, and performant code.

Key Responsibilities

• Design, develop, and maintain APIs and back-end services using TypeScript and Node.js.
• Build and manage Workers and microservices to ensure scalability and reliability.
• Collaborate with engineers, product owners, and business analysts to deliver high-quality software solutions.
• Conduct code reviews, support team members, and promote engineering best practices.
• Implement and maintain automated testing (unit, integration, and end-to-end).
• Contribute to CI/CD pipelines and work with modern DevOps tools (Azure, Docker).
• Identify and resolve technical issues across environments.
• Ensure adherence to security, data protection, and privacy standards.
• Participate in regular production deployments and contribute to continuous improvement initiatives.

Required Skills and Experience

• Senior-level experience in TypeScript and Node.js (5+ years).
• Proven experience designing and developing APIs and Workers in Node.js.
• Familiarity with React and Next.js for integration and front-end collaboration.
• Strong understanding of distributed systems, resilience, and cloud architecture.
• Experience with DevOps practices and infrastructure tools (Azure, Docker, CI/CD).
• Proficiency in automated testing frameworks and methodologies.
• Solid understanding of security best practices in software development.
• Experience working in autonomous, agile environments.
• Strong communication, problem-solving, and collaboration skills.

Additional Information

• Hybrid working model – one day per week in the Brussels office.
• Occasional travel between Belgium and the UK may be required.
• Competitive contract rate and opportunity for extension.
• A dynamic, collaborative environment focused on innovation and technical excellence.