Emmanuel Cousin
Senior Software Engineer at Green-Got
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolEmmanuel Cousin is a senior software engineer and technical lead with 11 years of experience building and modernizing SaaS products using Ruby on Rails, React, and TypeScript. He combines hands-on coding with architecture design and mentorship, having led Gumroad’s frontend migration to Inertia.js, authored 68 merged PRs and reviewed 425+ PRs while impacting a platform serving millions. Comfortable across backend, frontend and infrastructure, he has shipped payments, analytics and large-scale email systems and introduced AI search features in music-tech projects. A multilingual Paris-based engineer, he also volunteers mentoring Rails developers and runs freelance missions that span audits, API integrations and coaching. He focuses on removing product and team bottlenecks—helping teams not just write code but decide what to build and deliver it well.
11 years of coding experience
11 years of employment as a software developer
Centrale Lille graduate with a specialization in Industrial and Entrepreneurial Engineering, Engineering/Industrial Management, Centrale Lille graduate with a specialization in Industrial and Entrepreneurial Engineering, Engineering/Industrial Management at IteemCertificat en Sciences Appliquées, Gestion de projets d'ingénierie, Certificat en Sciences Appliquées, Gestion de projets d'ingénierie at Université de Sherbrooke
English, French, Portuguese
Stackoverflow
1reputation
0reached
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Github Skills (78)
fast-jsonapi10
mvc10
ruby10
grape-api10
ruby-on-rails10
cloudinary10
api10
html10
netflix10
rails-api10
rails10
cloudinary-sdk10
health10
week-calendar10
rest9
Programming languages (4)
Github contributions (5)
EmCousin/pkp
Aug 2018 - Jan 2025
Web platform to attend parkour classes in Paris with the Parkour Paris association
Contributions:3 reviews, 272 PRs, 468 pushes in 6 years 6 months
web-platformassociationdjangoparkourattend
EmCousin/provet-client
Jul 2021 - Jul 2021
Contributions:40 commits, 2 PRs, 29 pushes in 4 days
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