Guillaume Barillot
Senior Software Engineer at SpendHQ
Lyon, Auvergne-Rhône-Alpes, France
Summary
👤
Senior🎓
Top SchoolGuillaume Barillot is a senior software engineer and product-tech leader based in Lyon with over a decade of experience building and scaling web and mobile platforms. He has led technical transformations as CTO and Product & Tech Lead, taking products from prototype to global scale and driving revenue growth (notably helping grow SaaS revenue from €400K to €3M and accelerating an app from $3M to $12M). Guillaume combines hands‑on engineering with people leadership—recruiting and managing distributed teams across multiple countries and mentoring developers in AI-augmented development workflows. He thrives on designing pragmatic architectures for international markets and has a proven track record of shipping major platform evolutions in cross‑cultural settings. His background spans freelance projects for large clients to C‑level roles, reflecting both entrepreneurial grit and operational rigor.
11 years of coding experience
20 years of employment as a software developer
Ingénieur en architecture et conception des systèmes et logiciels, Computer Science, Ingénieur en architecture et conception des systèmes et logiciels, Computer Science at Conservatoire national des arts et métiers - Cnam
English
Stackoverflow
31reputation
53reached
1answer
1question
Github Skills (36)
stimulusjs10
hotel-booking10
vitejs10
pinia9
adonisjs9
vue9
rails8
vite8
sql6
postgresql6
intelligent5
browser-detection5
python4
elasticsearch4
ruby-on-rails3
Programming languages (3)
Github contributions (5)
gbarillot/blog
Jun 2015 - May 2022
Contributions:28 pushes, 4 branches in 6 years 11 months
gbarillot/rails-vue-demo-app
Dec 2017 - Aug 2022
Rails 7 + Vite + Vue 3 + Pinia Demo App
Contributions:57 commits, 41 PRs, 90 pushes in 4 years 8 months
demo-appvue-3vue3vite-vuevitejs
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.