Usama Khalid

Team Lead — Frontend & MERN Stack Developer

Talent

LahoreMember since August 15, 2026

React.jsNext.jsTypeScriptNode.jsMongoDBAI chatbotsRAG systemsLLM integrationVector searchPrompt engineeringShopifyHydrogenSanityWebflowToken claimingGitFigmaZeplinCode reviewPerformance optimization

Hire this person

Send a job offer directly to this candidate

React.jsNext.jsTypeScriptNode.jsMongoDB

About

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.

Experience

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.