Mathieu EUSTACHY
Ruby On Rails Freelance Developer at Mathieu Eustachy
Lyon, Auvergne-Rhône-Alpes, France
Summary
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Rockstar🎓
Top SchoolMathieu EUSTACHY is a Ruby on Rails freelance developer based in Lyon with five years of full-stack experience building production web platforms for healthcare, legal search, and market-research clients. He has led product-facing engineering work—designing a Doctolib-like booking platform for osteopaths and a survey-builder that outputs deployable social-media surveys—while operating the stack end-to-end on Rails 7, PostgreSQL, Redis and Stimulus. A former strategy consultant and MBA graduate, he combines product sensibility and process-driven delivery with hands-on coding, CI/CD and scaling experience. He also teaches and speaks at Le Wagon, signaling a strength for mentoring and translating technical concepts to non-technical audiences. Notably, Mathieu has bridged complex third-party APIs and compliance-sensitive domains, making him adept at pragmatic integrations in regulated environments.
5 years of coding experience
2 years of employment as a software developer
FullStack developper Web developer Batch #548 , FullStack developper Web developer Batch #548 at Le WagonMaster in Management Entrepreneurship specialization, Master in Management Entrepreneurship specialization at NEOMA Business SchoolClasses Préparatoires HECS Mathematics Geopolitics Philosophy English Spanish, Classes Préparatoires HECS Mathematics Geopolitics Philosophy English Spanish at Lycée ChampollionMaster of Business Administration - MBA, Master of Business Administration - MBA at Smith School of Business at Queen's University
French, English, Spanish
Stackoverflow
95reputation
13kreached
10answers
6questions
Github Skills (97)
devise10
authentication10
mvc10
ruby10
content-type10
activerecord10
computer-science10
ruby-on-rails10
aspect10
html10
width10
spree10
rails10
jpeg10
warden10
Programming languages (7)
Github contributions (5)
Mth0158/Mth0158
Apr 2021 - Dec 2023
My personal repository
Contributions:4 PRs, 26 pushes, 6 branches in 2 years 9 months
igorkasyanchuk/active_storage_validations
Jan 2023 - Jan 2023
Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 500.kilobytes }, limit: { min: 1, max: 3 }, aspect_ratio: :landscape, dimension: { width: { in: 800..1600 }
Contributions:3 releases, 49 reviews, 2 commits in 1 day
jpgwidthaspect-ratiocontent-typejpeg
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