Open to opportunities

Piyush Yadav

@piyushyadav3

Frontend developer specializing in React/Next.js performance and Core Web Vitals optimization for scalable, high-traffic products.

India

Message

What I'm looking for

I’m looking for a frontend role where I can build scalable React/Next.js products and keep improving Core Web Vitals, bundle performance, and user experience—ideally with opportunities to integrate AI APIs and ship in e-commerce/SaaS environments.

I’m a Frontend Developer with 3.5+ years of experience building scalable, high-performance React.js and Next.js applications. I specialize in Core Web Vitals optimization (LCP, CLS, INP), bundle size reduction, and SPA architecture—focused on measurable outcomes for real users.

At Greynium Information Technologies Pvt. Ltd (VerSe Innovation Group), I developed and maintained high-traffic SPAs across 9+ regional language domains, serving 100M+ monthly users. I improved Core Web Vitals and reduced average page load time by ~30%, elevating Lighthouse Performance scores from 70+ to 90+ across multiple portals.

Previously at Witty Marketers, I built and delivered 10+ React.js applications across e-commerce, SaaS, and service industries. I reduced unnecessary re-renders by ~25% using React.memo and useCallback, integrated payment gateways (Razorpay, Stripe) and Google Maps APIs, and helped teams ship 20% faster with a standardized component library.

I also bring a strong product-building mindset from my Frontend Developer Intern experience, then reinforced it through projects like an AI-powered React component generator using Groq’s Llama 3.3 and Firebase authentication. I enjoy turning complex requirements into clean, production-ready UI—especially when performance, reliability, and user experience must all improve together.

Experience

Work history, roles, and key accomplishments

Current

Front-End Developer

Current

Greynium Information Technologies Pvt. Ltd

Mar 2025 - Present (1 year 3 months)

Developed and maintained high-traffic React.js SPAs across 9+ regional language domains serving 100M+ monthly users. Improved Core Web Vitals and reduced average page load time by ~30%, while raising Lighthouse Performance scores from 70+ to 90+ and cutting JavaScript bundle size by 18%.

React Javascript (ES6)Lazy Loading JavaScript Bundle Optimization RESTful APIs

Front-End Developer

Witty Marketers

Dec 2022 - Mar 2025 (2 years 3 months)

Built and delivered 10+ scalable React.js applications for e-commerce, SaaS, and service clients using Redux Toolkit. Improved rendering performance by ~25% and accelerated delivery by 20% through a standardized reusable component library, while integrating Razorpay/Stripe payments and Google Maps APIs.

React TypeScript Redux toolkit Razorpay Stripe Google Maps Lighthouse Performance Optimization

Frontend Developer Intern

FrontCrew Technologies Pvt. Ltd

Feb 2022 - Aug 2022 (6 months)

Built and maintained frontend components using HTML, CSS, and JavaScript as part of client-facing web projects over a 6-month internship. Developed foundational skills in React.js, component-based architecture, and modern frontend workflows.

HTML5 CSS3 JavaScript React