Founder of Codelli · Full-Stack Developer · AI Expert
Cem Tekelli
About
I build digital products that make a measurable difference — for SMEs that deserve enterprise-quality code.
Cem Tekelli is a full-stack developer and entrepreneur based in Brussels, specializing in web development, mobile applications and AI integration for businesses.
Before founding Codelli, Cem spent 5 years in large enterprises — IBM, DXC Technology, RTBF — working on application modernization and greenfield development projects for clients in insurance, laboratories, energy and media. Demanding environments that shaped a rigorous, scalable, results-driven approach.
Today, Codelli works with startups and SMEs across Belgium, France, Luxembourg and the Netherlands — building digital products, mobile apps, and integrating AI concretely into business processes.
His differentiator: he uses AI in his own development workflow, delivering 2–3x faster than a traditional agency — without compromising on quality.
Technical Expertise
Enterprise background
5 years of enterprise experience before launching Codelli. Complex projects in demanding large-scale environments — shaping a rigorous, scalable, results-oriented approach.
Client sectors
Project types
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