Location: Pune, India

Remote: Yes (fully remote since 2019, worldwide)

Willing to relocate: Yes

Technologies: Ruby, Ruby on Rails, PostgreSQL, Redis, GraphQL, Hotwire/Turbo, Sidekiq, RSpec, Node.js, JavaScript, Docker, CI/CD

Résumé/CV: https://drive.google.com/file/d/1Pn4PYHqgbTRAOGqEKEtO7k06-X9...

GitHub: https://github.com/ahmad19

Portfolio: https://ahmad19.github.io/

LinkedIn: https://www.linkedin.com/in/ahmad-hamza-0b812052

Email: ahmadhamza19 at gmail

Senior Ruby on Rails developer with 10+ years of experience across healthcare, e-commerce, talent platforms, gaming, and media. Most recently at Toptal (Nov 2021 to Apr 2026): on the core team I worked on an internal engineering insights platform used by hundreds of engineers, then on client engagements I built a guest checkout and storefront system plus enterprise catalog restrictions (GraphQL, policy engine, caching) for a healthcare e-commerce platform, and refactored a Google Merchant Center product pipeline for a large marketplace. Earlier I built payments and compliance features for a regulated gaming platform handling deposits and withdrawals across 30+ gateways.

Open source contributions to Devise, CanCanCan, and Kamal. Current side project: JustInvoicIt, a Rails 8 + Hotwire invoicing app for freelancers.

Looking for senior backend or full-stack Rails roles, remote worldwide.