Stefan Cosquer
Nantes, Pays de la Loire, France
Summary
👤
SeniorStefan Cosquer is a versatile technology leader and CTO/co-founder with 9 years of experience delivering full-stack software across web, mobile, and embedded domains. He currently steers Digital4Better as CTO & Co-founder, teaches at ECV Digital, and serves as a partner at Time for the Planet to promote sustainable, responsible tech. Earlier in his career he was an architecte solutions at Niji and CTO at SeeMy, designing scalable backends (Java, NoSQL, real-time) and leading cross-functional delivery. Known as a 'couteau suisse' of engineering, he thrives on turning complex requirements into robust, production-ready systems while mentoring teams. Based in Nantes, France, his background in monétique and ecommerce from ENSICAEN informs a practical, impact-focused approach to technology.
9 years of coding experience
Github Skills (35)
react10
fastest9
web-app9
gatsby9
graphql9
frontend8
green-software8
compiler8
api8
sustainability8
static-site-generator8
network-tools7
css7
trace7
cisco7
Programming languages (3)
Github contributions (5)
digital4better/data
Jun 2023 - Feb 2025
Contributions:4 PRs, 74 pushes, 4 branches in 1 year 8 months
stefancosquer/api-sniffer
Nov 2019 - Jan 2022
A simple tool to trace API calls
Contributions:7 releases, 29 commits, 19 PRs in 2 years 2 months
apiapi-snifferpythoncallsnetwork-tools
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.