.NET Developer (Permanent contract and Freelance)

Smile Group • Woluwe-Saint-Pierre, Brussels, Belgium • Posted June 18, 2026

Location Woluwe-Saint-Pierre, Brussels
Job Type Full-time
Category Computer Occupations
Posted June 18, 2026






        Passionate about tech, digital, and innovation? Join the 1,800 employees at Smile, the European leader in open-source integration, spread across 20 agencies in 9 countries. Collaborative spirit and knowledge sharing are at the heart of our DNA. Our experts push the boundaries of open source every day to build a smarter, more efficient, and more responsible digital world. Here, we don't just follow trends, we create them! 🌟 Join Smile in Brussels and take part in projects that truly matter! 🏆

        As a .NET Developer...

        You are the architect of performance and the driving force behind our clients' web applications! Based in our vibrant Brussels agency, your mission is to design, develop, and optimize robust and scalable custom solutions using the modern Microsoft .NET ecosystem. On a daily basis, you will:

        • Design and develop complex, high-performance web applications using...

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