Open to new roles

const focus = "React.js Specialist";

I build fast, production-grade interfaces — and the systems behind them.

Frontend-focused engineer with 3+ years building high-performance, production React.js and Next.js applications — SSR, ISR, and CSR rendering strategies, component architecture, state management, and Core Web Vitals optimization — with the full-stack range to own the Node.js, Express, and MongoDB backend behind them.

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Years shipping production React & Next.js
3+

Years shipping production React & Next.js

Lighthouse score, up from a 60 baseline
90+

Lighthouse score, up from a 60 baseline

Average load-time reduction across platforms
40%+

Average load-time reduction across platforms

Organic traffic growth after SSR/ISR migration
30%+

Organic traffic growth after SSR/ISR migration

React.jsNext.jsTypeScriptRedux ToolkitTanStack QueryTailwind CSSNode.jsExpress.jsMongoDBJWT AuthJestRazorpayGemini APIReact.jsNext.jsTypeScriptRedux ToolkitTanStack QueryTailwind CSSNode.jsExpress.jsMongoDBJWT AuthJestRazorpayGemini API

About

Frontend-focused engineer with 3+ years building high-performance, production React.js and Next.js applications — SSR, ISR, and CSR rendering strategies, component architecture, state management, and Core Web Vitals optimization — with the full-stack range to own the Node.js, Express, and MongoDB backend behind them.

I'm comfortable owning a feature end-to-end: UI, APIs, auth, and data — and shipping work that designers, backend engineers, and product teams actually rely on. Most of my recent work has been performance-critical: taking production apps from a Lighthouse score in the 60s to 90+, and cutting real user load times by 35–45% along the way.

Based in
Delhi, India
Experience
3+ years
Focus
React.js & Next.js
Range
Full-stack (MERN)

Skills

Frontend Core

React.js, Next.js (App Router, SSR/ISR/SSG/CSR), TypeScript, JavaScript (ES6+), HTML5, CSS3

State & Data

Redux Toolkit, Context API, TanStack Query, REST API Integration

Performance

Core Web Vitals (LCP, INP, CLS), Code Splitting, Lazy Loading, Tree Shaking, Bundle & Image Optimization

UI & Styling

Tailwind CSS, Bootstrap, CSS Modules, Responsive / Mobile-First Design, Design Systems

Testing & Quality

Jest, React Testing Library, ESLint

Backend (Full-Stack)

Node.js, Express.js, REST API Design, JWT Auth, MongoDB, Mongoose

AI / GenAI

Google Gemini API, Structured LLM output validation with Zod

Tooling

Git, GitHub, Vercel, Webpack, Razorpay

How I work

Performance first

Core Web Vitals aren't an afterthought — I profile, measure, and optimize LCP, INP, and CLS as part of shipping, not a cleanup pass after.

Full-stack when it matters

I can stop at the frontend, but I don't have to — REST APIs, auth, and schema design are part of my range when a feature needs it end-to-end.

Tested, not just working

Core user flows get Jest and React Testing Library coverage, so 'it works on my machine' isn't the bar.

Built to be measured

I default to shipping things with a number attached — load time, traffic, conversion — because that's what makes impact provable, not just claimed.

Experience

  1. Jul 2023 — Present

    Frontend Engineer

    Sat Sukrit Media Pvt. Ltd. — Delhi · Full-Time

    • Scaled Next.js production apps to Lighthouse 90+, cutting load times 40%+ via SSR/ISR, lazy loading, code splitting, and tree shaking.
    • Led the Angular → Next.js migration for IIRF Ranking; SSR/ISR grew organic traffic 30%+ and cut API filtering response time 40%+.
    • Optimized Core Web Vitals — LCP, INP, and CLS — site-wide across 3 production platforms.
    • Designed and built a role-based (RBAC) admin dashboard in React with Redux Toolkit, powering editorial and admin workflows across 3 platforms.
    • Shipped reusable, testable component libraries with Jest and React Testing Library coverage for core user flows.
    • Independently designed Node.js/Express REST APIs with JWT auth and MongoDB/Mongoose schemas for data-heavy content and ranking workflows.
    • Integrated Razorpay subscription billing end-to-end — checkout, webhooks, and entitlement logic.

  2. Mar 2023 — Jun 2023

    Frontend Developer

    Oye Busy Pvt. Ltd. — Gurgaon · Part-Time

    • Built responsive React.js components and integrated REST APIs.
    • Collaborated with backend engineers on API contracts and cross-team integrations.

Projects

Production · Sat Sukrit Media

educationpost.in

Next.js SSR/SSG front-end cutting load times 35%+, with a role-based admin dashboard, Razorpay subscriptions, and a Node.js/MongoDB backend owned end-to-end.

  • Next.js
  • SSR/SSG
  • Node.js
  • MongoDB
  • Razorpay
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Production · Sat Sukrit Media

iirfranking.com

Led the Angular → Next.js SSR/ISR migration — 30%+ traffic growth and 40%+ faster rendering on data-heavy ranking tables.

  • Next.js
  • Tailwind CSS
  • Redux Toolkit
  • Node.js
  • Razorpay
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Production · Sat Sukrit Media

icosaonline.com

A fully responsive UI with optimized rendering and end-to-end Razorpay payment integration for seamless transactions.

  • Next.js
  • React
  • Tailwind CSS
  • Razorpay
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Personal project · GenAI

Resume–JD Skill-Gap Analyzer

A full-stack tool that compares a resume against a job description via the Gemini API, surfacing missing and matching skills. Uses Zod to validate and enforce structured LLM output for reliable downstream parsing.

  • React
  • Node.js
  • Express
  • MongoDB
  • Gemini API
  • Zod
Visit project

Let's build something worth measuring.

I'm open to frontend and full-stack roles, especially where performance and React/Next.js expertise are the priority. Email is the fastest way to reach me.

shadab.hussain.tech@gmail.com
+91 8400841731