👋 👋 Hello, I'm

Rajesh Kumar

A Full Stack Web Developer From Ghaziabad, Uttar Pradesh, India

I build responsive and performant web applications using Next.js, React.js, Node.js, TypeScript, and MongoDB. Passionate about clean code, scalability, and modern web development.

About Me

I am a passionate Full Stack Web Developer with 2.5 years of experience designing and developing scalable web applications using React.js, Next.js, Node.js, Express.js, and MongoDB.

I specialize in building end-to-end production-ready applications — from RESTful API development to responsive, mobile-first front-end interfaces. I have hands-on experience with TypeScript, Tailwind CSS, headless CMS integration (Payload CMS), and database migrations in live production environments.

I enjoy collaborating with designers and product teams in agile, remote-first environments to ship performant, user-friendly web solutions. My focus is always on writing clean, modular code and continuously improving performance and usability.

Alongside coding, I actively leverage AI-powered tools such as Cursor and ChatGPT to accelerate development, debug efficiently, and explore innovative solutions. Combining my engineering skills with AI assistance allows me to ship faster, think smarter, and stay ahead in modern web development.

Outside of coding, I enjoy learning new technologies and keeping up with the evolving world of AI + Web, where creativity meets efficiency.

Skills

Technical Skills

JavaScript (ES6+)

TypeScript

HTML5

CSS3

React.js

Next.js

Node.js

Express.js

NestJS

MongoDB

MySQL

Supabase

Mongoose ODM

Tailwind CSS

ShadCN UI

Zustand

React Context API

Payload CMS

Medusa

WordPress REST API

REST API

MVC Architecture

Git

GitHub

Vercel

Postman

AI & Productivity Tools

ChatGPT

Cursor AI

AI-assisted Debugging

AI-accelerated Development

Soft Skills

Problem-Solving Mindset

Cross-functional Collaboration

Time Management

Agile / Remote Teamwork

Flexibility

Experience

Web Developer

PiAcademy Tutors

Sep 2023 – Present | Remote

Developed and maintained 10+ reusable frontend components using Next.js and Tailwind CSS, improving UI consistency and reducing development time across the platform.
Built and integrated RESTful APIs using Node.js and Express.js, connected to MongoDB for efficient data storage and retrieval, supporting 1,000+ monthly active users.
Led full migration of the PiAcademy website from WordPress to a modern Next.js + MongoDB architecture, reducing page load time by ~35% and significantly improving SEO performance.
Integrated Payload CMS as a headless CMS backend, enabling non-technical content editors to manage site content independently without developer intervention.
Implemented TypeScript across the frontend codebase, reducing runtime errors and improving code maintainability and developer experience.
Collaborated with design and product teams in an agile, remote-first environment to deliver responsive, cross-browser-compatible web solutions on schedule.
Deployed and managed applications on Vercel, handling environment configurations and monitoring production performance.

Projects

SchoolUniGuide

Sep 2023 – Dec 2023

A full-stack listing platform for London-based schools, businesses, and coaching centers.

Tech Stack:

MongoDB, Express.js, React.js, Node.js (MERN), Tailwind CSS, Zustand

Key Achievements:

Architected and developed the complete full-stack application from scratch — including database schema, REST API, and React frontend.
Built dynamic search and filter functionality enabling users to browse and compare 500+ listed institutions.
Implemented Zustand for global state management, reducing prop drilling and improving component reusability.
Designed a mobile-first, fully responsive UI using Tailwind CSS, achieving consistent rendering across all major browsers.

Question Bank Generator

Jan 2024 – Apr 2024

A web application for generating customized question papers for London schools and coaching centers.

Tech Stack:

NestJS, Supabase, React.js, Tailwind CSS, Zustand, ShadCN UI

Key Achievements:

Developed RESTful APIs using NestJS with modular architecture for scalable and maintainable backend services.
Integrated Supabase for user authentication (OAuth + email/password) and real-time database operations.
Built a dynamic question paper generation engine allowing educators to filter questions by subject, difficulty, and topic.
Implemented ShadCN UI components for a consistent, accessible design system across the application.

PiAcademy Website Revamp

Apr 2024 – Present

End-to-end revamp migrating from a legacy WordPress setup to a modern Next.js + MongoDB architecture.

Tech Stack:

Next.js, TypeScript, Tailwind CSS, ShadCN UI, Zustand, Payload CMS, MongoDB

Key Achievements:

Led complete front-end rebuild using Next.js App Router with TypeScript, improving Lighthouse performance scores by 35%+.
Replaced WordPress with Payload CMS as a headless CMS, enabling structured content management with type-safe API responses.
Migrated data layer from WordPress REST API to MongoDB with custom Express APIs, improving query performance and data flexibility.
Implemented SSR and SSG strategies in Next.js to optimize SEO and reduce initial page load time.
Managed global state using Zustand with persistent middleware for seamless user sessions across page navigations.

Dev Playground

A suite of interactive tools I built to speed up common developer workflows. Explore the full collection in the dedicated page.

View All Tools

Base Color

#2DD4BF

Education

Full Stack Web Development (Node.js)

Masai School

Oct 2022 – Jun 2023 | Bengaluru

Full-time intensive program focused on modern web development including React, Node.js, Express, and MongoDB. Worked on real-world projects in an agile team environment.

Academic Achievement