Usama Khalid

Software Engineer and Team Lead with 5+ years of experience and 20+ production websites and web applications shipped across e-commerce, Web3, and AI products. Deep MERN-stack expertise — React, Next.js, and TypeScript front ends backed by Node.js, Express, and MongoDB APIs — plus hands-on delivery of AI chatbots and RAG systems on modern LLM tooling.

Proven record leading frontend teams: owning architecture, running code reviews, mentoring developers, and turning Figma designs into pixel-perfect, high-performance interfaces.

Team Lead — Frontend & MERN Stack Developer at Bigosoft (2023-05 – Present)

• Lead the frontend team, owning architecture, sprint delivery, code reviews, and mentoring junior and mid-level developers.
• Serve as project lead for client products including Klip AI, Graphene-X, Aunti, and Quiet Events, owning delivery from design handoff through production release.
• Build scalable single-page applications with React, Next.js, and TypeScript, managing complex state and client-side routing.
• Deliver full-stack features on the MERN stack, integrating React front ends with Node.js, Express, and MongoDB REST APIs.
• Develop AI-driven features, including chatbots and RAG systems that connect LLMs to product data through vector search and prompt engineering.
• Define frontend standards, reusable component libraries, and performance budgets to keep the codebase consistent and fast.

Frontend Lead — React Developer at Geeks Hub (2021-03 – 2023-05)

• Led frontend architecture and delivery across client projects, building responsive UI components with React and modern JavaScript.
• Converted Figma and Zeplin designs into pixel-perfect, production-ready code following React.js workflows.
• Developed reusable component and utility libraries, cutting delivery time on new features across projects.
• Optimized rendering performance and cross-browser compatibility across a wide range of devices.

Frontend Developer at Ubisoft (2019-06 – 2020-11)

• Built responsive, user-friendly pages with HTML, CSS, and JavaScript, optimized for mobile devices.
• Improved page speed and scalability across five applications through reusable, well-structured code.
• Shipped new features to the company website while maintaining brand consistency.

BS in Software Engineering – University of Engineering & Technology (UET), Taxila (2016-09 – 2020-06)