About Kellis Le Louër (aka Gumbraise)

I'm Kellis Le Louër, also known as Gumbraise, a passionate developer and technical expert who loves building things that genuinely help people move faster and do better. What drives me every day is the excitement of creating new products, solving real problems, and turning ambitious ideas into polished, reliable digital experiences. My work is shaped by my experience, my way of working, and my long-term vision. I've learned to be both highly autonomous and deeply collaborative, always aiming for a balance between strong technical foundations, thoughtful design, and a relentless focus on security. I value versatility, design excellence, and technical rigor, qualities that define how I approach every project. Some projects have marked my journey in very different but meaningful ways. Bluur.me taught me how to lead a French SAS alongside my co-founders. Qalbeen showed me how to manage an e-commerce business that reached €1M in revenue, and developing its mobile app is where I learned Flutter. Palamazon taught me how to work efficiently within a larger team of seven developers. Minerband was the first project I ever sold, and it showed me the value of shipping. And SwipeUp helped me learn how to pitch in front of juries and communicate a product's purpose clearly. Today, I bring all of that together in the way I build: simple, intentional, and always user-focused. I like creating things that matter, that help people, and that make the web a little more thoughtful. And this portfolio is just a reflection of who I am. A developer who keeps learning, keeps building, and keeps moving forward.