Guillaume Castellana
Founder at OTTO Mouffetard
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolGuillaume Castellana is a seasoned founder and technical leader with 12 years of experience building SaaS products for travel, wine, and productivity sectors from Paris. He founded and led Trekker, a booking management platform for tours, and now runs Goutte, a niche rare-wine management tool for winemakers, agents and sommeliers, while serving on the board of OTTO Mouffetard. His background spans low-level C++ platform architecture for medical imaging and early WebGL work to full-stack web and productivity applications, giving him a rare mix of performance-focused engineering and product-first entrepreneurship. Comfortable switching between CTO duties and CEO vision, he has repeatedly taken products from prototype to market and managed technical teams and budgets. Outside of software he brings a culinary sensibility—he cooks French food—which informs his close work with the food & wine industry. Fluent in turning domain expertise into tailored digital workflows, he combines deep technical chops with hands-on business experience.
11 years of coding experience
13 years of employment as a software developer
Epitech
French, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
objective-c10
swift10
macos10
ios10
cocoapods9
xcode9
carthage8
Github contributions (5)
aout/SAGE
Apr 2015 - Apr 2015
Contributions:3 pushes, 3 branches, 1 issue in 1 day
aout/GCAnimatedTitle
Jun 2014 - Aug 2014
Contributions:8 commits in 1 month
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