JavaScript development that actually ships.
Freelance JavaScript developer helping teams build fast, scalable web applications with React and modern front-end architecture.
A senior developer who integrates fast and delivers
With more than a decade of experience in web development, Sander Belen helps digital teams build, improve and scale modern web applications. From front-end architecture to full-stack solutions, he combines deep JavaScript expertise with a pragmatic, product-focused mindset.
Sander has worked with leading Belgian media and tech organisations such as DPG Media and VRT, contributing to platforms used by millions of users. His background ranges from PHP and full-stack development to leading front-end teams and building complex React applications.
As a freelance developer, he integrates quickly into existing teams, understands product priorities, and focuses on what matters most: writing clean, maintainable code that performs in production.
Whether you need extra capacity, senior expertise or someone who can take ownership of complex front-end challenges — Sander helps you move forward.
Looking for an experienced JavaScript developer to strengthen your team?
Let’s connect and discuss your project.