Stéphane Garagnani - CTO at Edulib

Stéphane Garagnani

CTO at Edulib

Paris, Ile-de-France

Join Prog.AI to see contacts

Summary

👤

Senior

🎓

Top School

Stéphane Garagnani is a pragmatic CTO and entrepreneur with 11 years of full-stack engineering experience, currently leading technology at Edulib and co-founding Arbitryum from Paris. He began in C/C++ and Java, built cross-platform mobile apps with a shared native C++ core, and has repeatedly re-architected infrastructure and stacks—most recently migrating MongoDB to Postgres and cutting infrastructure costs by 90% while tripling operational efficiency. A hands-on leader who recruits and runs small, high-performing teams, he blends product sense with deep engineering (Ruby on Rails, Rollup/ES6 modernizations) and has contributed to the prominent Active Admin Rails project. Comfortable switching between low-level systems and strategic roadmaps, Stéphane often surfaces efficiency gains others miss and favors pragmatic, cost-effective technical decisions.

11 years of coding experience

6 years of employment as a software developer

Engineer's degree, Materials Science, Engineer's degree, Materials Science at Ecole Nationale Supérieure des Mines de Nancy

French, English, Japanese

Github Skills (9)

s610

javascript10

rollupjs10

activeadmin10

ruby9

rails9

ruby-rails9

webpack8

webpacker8

Programming languages (13)

JavaC++CMakeGoHTMLGroovyJavaScriptPHP

Github contributions (5)

activeadmin/activeadmin

Sep 2019 - Mar 2020

The administration framework for Ruby on Rails applications.

Role in this project:

Full-stack Developer

Contributions:42 commits, 13 PRs, 61 comments in 6 months

Contributions summary:Stéphane primarily focused on modernizing the Active Admin framework. They refactored JavaScript code, replacing legacy `window.activeadmin` usage with ES6 imports, and updated the build process using Rollup. The user also restructured the project by renaming JavaScript files, splitting code into initializers and classes. They additionally added the ability to switch between asset pipelines and Webpacker assets.

ruby-on-railsrails-applicationsrailsadministrationarbre

sgara/activeadmin

Jul 2019 - Mar 2020

The administration framework for Ruby on Rails applications.

Contributions:113 pushes, 13 branches in 7 months

ruby-on-railsrails-applicationsrailsadministrationruby

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.

Request Free Trial