Freelancer profile translated to English.
Back to original languageAbout Stephane
I specialize in developing Bitcoin web applications with Ruby on Rails.
🏢 My projects:
- N28 - SaaS for Bitcoin rental payments ($4.2k/month)
- Hongbao Bitcoin - Giving Bitcoin according to Chinese red envelope tradition.
- HackerHouse - Coliving platform for developers ($8.5k/month)
I have 15+ years of experience as a Rails Lead Developer, with expertise in:
- Architecture of simple web applications (Rails + Stimulus)
- RESTful API development
- Native Bitcoin protocol integration: HD Wallet, Bitcoinjs-lib
- MtPelerin offramp / onramp integration
- Self host BTCPay Server
- Lightning Network (inbound liquidity, LNBIG...)
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I amCII Approved:30% of my daily rate is recoverable as tax credits if you are eligible.
[Daily Rate]: Decreases with duration 🔗 https://vptown.bubbleapps.io/version-test ––––––––––––––––––––––––––––––––––––––––––––––––––
✓ Lead dev: Train and accelerate the technical team's development
✓ Architecture: Design and implementation of Bitcoin applications
✓ Deployment: Kamal, Docker, CI/CD
✓ Stack: Ruby on Rails 8+, PostgreSQL, SQLite3, TailwindCSS, Bitcoin APIs / Full Node
✓ Marketplace: Expertise in Stripe payment flows and fee optimization
👀 Get to know me better
- sbounmy.com
- twitter.com/sbounmy
- indiepa.ge/vptown
_PS: Portfolio created with vptown.gumroad.com👇_
English
Native or bilingual
French
Native or bilingual
Chinese
Basic
Korean
Basic
Can work on-site
Bordeaux (up to 20km), Paris (up to 20km), Toulouse (up to 20km)
Experience
- PlugandworkSenior Ruby On Rails DeveloperREAL ESTATEJanuary 2025 - Today (1 year and 7 months)- Increase team velocity by 30%- Reduce codebase legacy (ViewComponents, Tailwind)- Reduce tests flakyness Ci/CD
- usealtoLead DeveloperSOFTWARE PUBLISHINGNovember 2022 - May 2023 (6 months)Paris, France- Redesign of the application into an SPA- Backend API PostgreSQL- Team lead of 2 Juniors- Performance audit related to SPA + Data in API
- CrealoCrealoJanuary 2023 - January 2023 (1 month)- Reduced page load time by 70%- Debugging PDF generation via selectPDF- Performance and security audit- Responsive PDF and web pages
Reviews
Recommendations
CG
TG
+2
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Education
- Master Degree in Computer ScienceSUPINFO International University2011
- Management and Marketing of Information TechnologyDominican University of California2011