Abaid Ullah

Senior Ruby on Rails & Full Stack Developer | SaaS, APIs, AI Integrations | 10+ Years Building Scalable Products

Icons/solid/beacher 10 xp
Remote
Icons/solid/euro 15 $ hourly
Available
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About me

I’m a senior Ruby on Rails and full stack developer with 10+ years of experience building SaaS products, APIs, and data-heavy web applications.

I help startups and growing companies turn complex ideas into reliable, scalable systems. Most of my work involves Rails backends, PostgreSQL, third-party API integrations, and performance optimization for production systems.

I’ve delivered 50+ projects for clients across the US, UK, and Europe through long-term contracts and repeat engagements. My focus is always clean architecture, predictable delivery, and systems that are easy to maintain after launch.

Typical work I handle:

Ruby on Rails SaaS applications and APIs

Database design, optimization, and large-scale PostgreSQL systems

Third-party integrations (Stripe, Shopify, Amazon, eBay, internal APIs)

AI-assisted workflows, automation, and internal tools

Performance fixes, refactors, and scaling existing products

If you need someone who can own the backend, think in systems, and communicate clearly, I’m happy to help.

Developer Information

Contact details.

Work preferences

Actively looking
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Type of roles

🎯 Full time job
🏝 Freelance
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