Freelance developer in Valenciennes
Business software, mobile apps and websites — designed and built from Valenciennes, available throughout the Hauts-de-France region and beyond.
Cambrai · Douai · Lens · France
An independent developer rooted in the Valenciennes area
Based in Valenciennes for over twenty years, I work mainly with companies across the Nord and Hauts-de-France: industrial SMEs, start-ups, non-profits, local authorities. A wide range of sectors — retail, logistics, healthcare, services — but always the same approach: understand first, code second.
Proximity matters. When we work together, we can meet in person. No endless conference calls to explain a need that two hours face to face would settle. I travel to Valenciennes, Maubeuge, Cambrai, Douai, Lens, and across the whole Hauts-de-France region. For projects that warrant it, I'm also available throughout France.
Hugues Dehen, independent freelance developer — not an agency, not a middleman. You deal directly with the person who writes the code, picks up the phone and stays available six months after delivery.
What I do in Valenciennes
- Custom business software and internal tools (.NET / C#)
- iOS & Android mobile apps (Flutter)
- Websites, platforms and APIs (ASP.NET, PHP, Node.js)
- Taking over and modernising existing code
- Software architecture and technical consulting
- Performance diagnosis and debugging
Based in Valenciennes, available across Northern France
Valenciennes & surrounding area
Denain, Condé-sur-l'Escaut, Saint-Amand-les-Eaux, Anzin, Marly — fast turnaround, on-site meetings available.
Hauts-de-France
Maubeuge, Cambrai, Douai, Lens, Lille, Arras — regular visits depending on the project's needs.
All of France
Remote work or occasional travel — most engagements can be handled entirely remotely.
The concrete advantages of working with a developer from the region
Genuine responsiveness
Same time zone, same work culture. An urgent request gets an answer the same day.
In-person meetings
When face to face works better — scoping, demos, training — I travel to Valenciennes and the surrounding region.
A single point of contact
No agency, no subcontracting. You talk directly to the developer working on your project.
20 years of practice
Projects delivered for companies in Northern France and beyond — with the scars and the experience that come with them.
Freelance web developer in Valenciennes
Need a website, a platform or a web application? I build high-performance showcase sites, client portals, in-browser business applications and custom APIs (ASP.NET Core, PHP, Node.js, React, Vue.js) — for companies in Valenciennes and the Hauts-de-France.
See the dedicated page: freelance web developer in Valenciennes, or the web development service.
Freelance mobile developer in Valenciennes
For your iOS and Android apps, I develop in Flutter: a single codebase, two stores, native performance. From prototype to publication on the App Store and Google Play, then maintenance — a single point of contact based in Valenciennes.
See the dedicated page: freelance mobile developer in Valenciennes, or the mobile apps service.
A project in Northern France?
Describe your need — reply within 48h, free quote with no obligation.