Sebastien Delcour

Senior Fullstack Developer Ruby on Rails with 15 years of experience.

Senior fullstack developer specializing in Ruby on Rails, I design and develop robust, scalable, and product-oriented web applications for over 10 years. My approach is centered on business value, code simplicity, and rapid delivery.

Main Stack:

- Backend: Ruby on Rails (v4 to v7), PostgreSQL, Redis, Sidekiq

- Frontend: Hotwire/Turbo/Stimulus, JavaScript (ES6), HTML/CSS, Tailwind

- DevOps: Docker, CI/CD (GitHub Actions, GitLab CI), AWS, Heroku

- Tests: RSpec, Capybara, FactoryBot

What I offer:

- Complete development of web applications (MVP or scale-up)

- Refactoring of legacy code and performance improvement

- Integration of external APIs and creation of REST/GraphQL APIs

- Implementation of modular architectures and best practices (TDD, DDD, clean code)

- Mentoring technical teams or CTO support

Languages spoken: French (native), English (fluent)