Zoha Qayyum

I’m a Ruby on Rails backend engineer with 3+ years of experience building production-grade web applications for international clients. I specialize in designing scalable REST APIs, integrating third-party systems, optimizing database performance, and implementing complex business logic.

In my recent work, I’ve comfortably owned backend systems end-to-end in remote Agile teams. I enjoy taking responsibility for system reliability, clean architecture, and performance—especially when business-critical modules face high traffic.

On projects like Nice2Stay, I implemented pricing and availability workflows, built and maintained RESTful APIs for a CRM system, and handled OpenGDS booking integrations. I also migrated thousands of image assets from AWS S3 to Cloudflare R2 with zero URL breakage, and led a zero-downtime Rails framework upgrade by resolving gem conflicts on a legacy system.

I also ship full-featured applications when the need arises, such as Heaven Candles, where I built an e-commerce platform with Devise authentication, robust product/catalog structure, shopping cart logic, and order checkout. I’m motivated by building dependable systems with clear code, solid testing (RSpec), and background processing using Sidekiq.