Abdul

Ruby On Rails Developer

Citiesense LLC • Full-time

Jun 2024 - Jan 2026 • 1 yr 7 mos

I have worked as a Ruby on Rails Developer and Technical Support Engineer at CitySense LLC, where I was responsible for: • Developing and maintaining production Rails applications • Fixing complex backend issues and performance bottlenecks • Managing database architecture and optimization • Debugging live production errors • Supporting clients with technical troubleshooting • API integrations and third-party service connections • Handling deployments and server configurations Working in both development and technical support roles has given me a unique advantage: I don’t just build applications. I understand how to maintain, scale, and support them in real-world environments.

Full Stack Ruby on Rails Developer

FaciDoc • Freelance

Dec 2022 - Apr 2024 • 1 yr 4 mos

I independently developed the FaciDoc doctor appointment web application for a France-based company. For the FaciDoc project, I: • Built a complete doctor appointment booking system • Designed secure authentication and user role management (Admin / Doctor / Patient) • Implemented scheduling logic and booking workflows • Integrated email notifications and real-time updates • Designed database architecture for scalable medical appointment handling • Ensured performance and production readiness This project strengthened my experience in building real-world SaaS healthcare systems with proper business logic and scalability.