Zehan Khan

Software Engineer

+91 9024172911 | zehan9211@gmail.com

LinkedIn | GitHub | Portfolio | Medium

Work Experience

Opland Technologies

Sr. Software Engineer & Frontend Tech Lead

May 2025 – Jun 2025

Hyderabad, India (Remote)

  • Led and mentored a team of 5 developers, delivering an enterprise-grade Inventory ERP system (Focus9/Odoo inspired) ahead of schedule with 100% on-time feature delivery.
  • Architected a modular frontend using React, Redux Toolkit, and MUI, increasing scalability and reducing code maintenance overhead by 30%.
  • Refactored legacy React ERP codebase and launched a modern HRMS platform boosting HR task efficiency by 40% and improving frontend performance by 30% through optimized data fetching strategies.
  • Implemented robust state management with Redux Toolkit and React Query to handle complex data flows across 50+ components, enhancing maintainability and reducing bug frequency by 35%.
  • Optimized server-side state synchronization with React Query, cutting API overfetching by 40% and improving data consistency across mission-critical modules.

Headstarter AI

AI Engineer

Jun 2024 – Apr 2025

New York, USA (Remote)

  • Engineered AI-powered APIs and integrated machine learning models into a full-stack Next.js + TypeScript application, improving prediction accuracy by 20% and reducing manual analysis time by 40%.
  • Architected and refactored frontend (React, Redux Toolkit) and backend (Node.js, PostgreSQL, Redis) systems, reducing technical debt by 30%, improving API performance by 25%, and accelerating feature delivery by 20%.
  • Enhanced platform reliability with Jest, Cypress, and Storybook, achieving 85%+ test coverage, sustaining a 95% uptime SLA, and enabling multilingual support through i18n for global users.

Hootboard

Software Engineer

Mar 2023 – Mar 2024

Philadelphia, USA (Remote)

  • Redesigned the onboarding experience, reducing user drop-off by 35% and increasing new user sign-ups by 20%.
  • Developed admin tools that streamlined kiosk setup, cutting configuration time by 50% and improving efficiency across 1,500+ kiosks.
  • Automated the kiosk OS deployment pipeline, reducing rollout time by 40% and enabling seamless updates for 2,000+ devices.
  • Implemented ISO-based OS build process, reducing device onboarding time by 60%.
  • Optimized backend API queries and caching strategies, reducing response latency by 25%.
  • Integrated analytics tools to capture and analyze user behavior, driving insights that increased customer satisfaction scores by 15%.

Publications

Mastering SOLID Principles in JavaScript

October 2024

  • Explained how SOLID principles improve maintainability in JavaScript applications.
  • Published on Medium.

Using displayName in React: Simplifying Debugging

September 2024

  • A concise guide to improving component traceability in React apps using `displayName`.
  • Published on Medium.

Projects

EasyShop – Modern E-commerce Platform

Next.js 14, TypeScript, MongoDB, Redux, Tailwind | Aug 2025

  • Full-stack store with JWT auth, SSR/SSG, real-time cart, search/filtering.
  • Challenges: SSR+CSR auth via HTTP-only cookies; cross-tab cart sync (Redux persist + storage events); MongoDB indexes + cursor pagination → search latency ↓ 35%.

GitHub | Live Demo

Todo App

PWA, WebRTC, Gemini Nano | May 2023 – Aug 2025

  • Offline-first PWA with caching, themes/dark mode, task sharing via Link/QR, P2P sync (WebRTC), AI emoji suggestions (Gemini Nano), and text-to-speech.
  • Challenges: Built serverless sync using WebRTC with QR pairing; resolved conflicts via op-log + last-write-wins and deterministic IDs; added service worker background sync; cut bundle size 28% with code-splitting/tree-shaking.

GitHub | Live Demo

MOVX – Movie Explorer

React, Redux, Saga, IntersectionObserver | May 2023 – Aug 2025

  • Movie discovery app with client-side routing & pagination, react-slick carousels, lazy-loaded images (skeletons), trailer modals; state via Redux + saga + persist.
  • Challenges: Removed image-heavy jank using IntersectionObserver lazy-load + prefetch; handled API limits with queued requests + caching + backoff → perceived load time ↓ 40%.

GitHub | Live Demo

Education

Technical Skills

Languages: TypeScript, JavaScript (ES6+), Python, Golang, Ruby, SQL, Bash
Frontend: React.js, Next.js, Remix, Vue, React Native, Redux Toolkit, React Query, Context API, Tailwind CSS, MUI, Shadcn UI, Storybook, Cypress, Jest, Vite, Webpack
Backend: Node.js, Nest.js, Express.js, TypeScript, JavaScript, REST APIs, GraphQL, Microservices, Redis Caching, Authentication (JWT, OAuth)
Databases: PostgreSQL, MongoDB, MySQL, Firebase, Supabase, Prisma ORM
DevOps/Tools: Git, Docker, CI/CD (GitHub Actions), NPM, Yarn, pnpm, Turbopack, Postman, Swagger
Expertise: Frontend Architecture, Scalable UI Systems, Performance Optimization, Data Structures & Algorithms, Object-Oriented Programming