About Sébastien
I’m a founder who codes.
I co-founded Coddy — urban escape games running in 10+ countries. I’ve also shipped Harmonia, Crewsade, and Attic Gaming. Real products, real users, real constraints.
When I take freelance missions, I bring that same mindset: I think about your product, challenge the weak spots, and build things that work at scale — not just things that demo well.
What I build:
∙Custom web apps and SaaS platforms — no CMS, no templates, no shortcuts
∙AI automations that eliminate repetitive tasks (up to 80%)
∙Internal tools, dashboards, and admin panels your team will actually use
Stack:
Laravel · Vue.js · Astro · n8n · AI integrations · Clean APIs
Who I work with:
∙Founders who need a senior dev without hiring one
∙Agencies who need an extra brain, not just extra hands
∙B2B companies replacing spreadsheets and manual processes with real tools
What’s different:
I’ve been on the product side. I know what breaks at scale, what users actually need, and what features are a waste of everyone’s time. I’ll tell you — even if you didn’t ask.
French
Native or bilingual
English
Fluent
Can work on-site
Bruxelles (up to 50km)
Experience
- CoddyChief Executive OfficerENTERTAINMENT AND LEISUREJune 2019 - June 2025 (6 years)Brussels, BelgiumInvite your Family and Friends to Play a Citywide Escape Game! Solve puzzles together and go on a journey of discovery through the city! Free games available: https://www.coddygames.com
- NuminamFounderJanuary 2015 - Today (11 years and 5 months)Bruxelles, BelgiumAt Numinam, I lead the design and development of modern web solutions for startups, SMEs, and internal ventures. I specialize in building fast, scalable, and user-friendly applications using Laravel, Filament, Livewire, Tailwind, and Alpine.js. From marketing websites to fully operational SaaS platforms, I combine clean UX with robust backend architecture to deliver impactful digital products.
- Kalio TechCo-FounderDIGITAL AND ITJune 2018 - April 2021 (2 years and 10 months)Brussels, BelgiumAt Kalio Tech, I helped companies design and improve their mobile applications with a strong focus on user experience, visual consistency, and usability. I worked closely with product teams to transform business needs into intuitive mobile interfaces, from wireframes to polished UI kits.
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Education
- Licence, Marketing & Commerce OnlineUniversité Évry Paris-Saclay2007Licence, Marketing & Commerce Online
- BTS MUC, Management des unités commercialesUniversité Polytechnique Hauts-de-France2006BTS MUC, Management des unités commerciales