Summary
Jonathan Pares is a Senior Ruby on Rails developer and consultant with 12 years of experience building backend APIs, scalable e‑commerce and enterprise systems, and complex authentication and payment integrations for startups and SMEs. Based in Paris, he combines hands‑on engineering (Rails, Postgres, Sidekiq, Trailblazer) with DevOps and agile practices—TDD/BDD, CI/CD and distributed team tooling—to reliably ship production systems. His freelance work spans payment-heavy platforms (MangoPay, Payoneer, PayPal, HiPay), mobile payment integrations and ERPs for niche industries, while past roles include leading API backends for consumer apps and high‑availability telecom backends. He contributes to open-source Rails tooling—having extended rspec_api_documentation with a textile writer—and mentors teams on testing and workflow modernization. Colleagues praise his focus on pragmatic, testable solutions and his knack for translating complex third‑party integrations into maintainable services.
13 years of coding experience
6 years of employment as a software developer
Master's Degree, Computer Science, Master's Degree, Computer Science at Polytech'Nantes
Chinese, German, English, French