Obaidullah Zeb

Backend Software Engineer with hands-on experience building production software across SaaS platforms, internal developer tools, and eCommerce systems. Experienced designing backend features, REST APIs, database-driven applications, and scalable server-side solutions using Node.js, TypeScript, PostgreSQL, and JavaScript. Strong foundation in system design, clean architecture, SQL optimization, and debugging production issues.

Passionate about building reliable backend systems and distributed applications.

Backend Software Engineer at eBridge Technology Pvt Ltd (2026-04 – 2026-07)

• Built and maintained production backend features for enterprise eCommerce platforms.
• Designed and implemented admin-side functionality for configurable payment gateway and shipping modules, supporting both classic shortcode and modern block-based checkout flows.
• Integrated AI services using Gemini and ChatGPT APIs to enhance image quality and automate optimization workflows
• Optimized backend queries and asynchronous data loading for large datasets through paginated admin dashboards
• Diagnosed and resolved production issues involving authentication tokens, request handling, URL encoding, and client-server state synchronization
• Worked extensively with server-side programming, relational databases, OOP principles, and reusable backend components

Backend & DevOps Engineer (Contract) at Kriya Software (2025-08 – 2026-02)

• Performed functional and regression testing across 20+ REST APIs before every production release, ensuring zero-defect deployments
• Maintained CI/CD pipelines using GitHub Actions with automated test validation on every pull request
• Conducted API testing via Postman, writing and running collections for endpoint validation and edge case coverage
• Managed production deployments and database migrations with strict quality control and rollback planning
• Collaborated in a distributed team using structured code reviews and async QA workflows

Full-Stack Developer (Backend Focused) at Xelerate Labs (2025-04 – 2025-07)

• Built and maintained full-stack features using Next.js/React for user interfaces and Node.js/Express for scalable backends
• Implemented REST and WebSocket APIs with secure JWT authentication and role-based access control
• Designed database schemas and handled migrations using Prisma ORM with PostgreSQL
• Collaborated on modular, clean architecture patterns and participated in code reviews via GitHub
• Worked with modern AI-assisted development workflows to accelerate feature delivery

Bachelor of Science in Computer Science – COMSATS University Islamabad (2022-01 – 2026-01)