Harsh Prajapati | Software Engineer | MERN & Next.js Developer

What i do.

Hey, I'm Harsh — a Full Stack Developer with 3+ years of experience shipping production web applications. I'm most confident on the backend — REST API design, Node.js, PostgreSQL, MongoDB, AWS, Docker, and CI/CD. I've built systems from schema design through to cloud deployment, and I care about code that's well-structured and built to scale.

On the frontend I work with React.js, Next.js, and TypeScript — as an engineer, not a designer. State management, performance optimization, clean API integration. Currently at Merkle (Dentsu), shipping backend tooling and web solutions for global enterprise clients. Next, I'm looking to go deeper on backend systems and cloud infrastructure.

React.js
Typescript
MongoDB
AWS

Next.js
Javscript
Node.js
Langchain

Places i’ve worked.

Since 2023, had a privilege to work with several companies that enables me to hone my skills and talents. These companies will always have a special place in my heart. Currently I am working with Merkle.

Software Developer & Analyst#Merkle Adverstising & Analytics

Jun 2023 - Present

Designed and delivered full-stack MERN features across multiple client projects - owning Node.js/Express.js backend API architecture, React.js/Next.js frontend components, and PostgreSQL/MongoDB database schema, reducing feature delivery cycles through modular, reusable service design
Built a real-time data pipeline integrating GA4, GTM, and GMP APIs - automating custom event tagging, data extraction, and alerting workflows that eliminated manual analyst effort and improved reporting accuracy for clients
Led production debugging and root cause analysis for critical incidents; implemented performance fixes and stabilised data pipelines, consistently maintaining deployment reliability across multi-client environments.
Optimised REST API response times and frontend load performance through query optimisation, indexing strategies, and React lazy-loading - delivering measurable improvements in application scalability and end-user experience

Some of my works.

A selection of production-ready platforms and systems I’ve built across full-stack engineering, analytics, and cloud deployments.

#01 Curiomart

A scalable multi-vendor e-commerce CMS built using the MERN stack. Features include role-based authentication, real-time chat with Socket.IO, Stripe payment integration, and a responsive admin dashboard. Deployed on AWS EC2 for production scalability.

Live View Code

#02 WealthFox

A production-grade financial advisory platform built with Next.js and Tailwind CSS. Integrated GA4 via GTM, Google Places reviews with MongoDB TTL caching, SEO optimization, and automated lead capture synced with Odoo CRM.

Live

#03 Trimly

A modern URL Shortener with Analytics built using React, shadcn/ui, and Supabase. Trimly allows users to create short URLs, track clicks, and view link performance through a clean dashboard. This project was built to explore modern React UI patterns, Supabase BaaS, and shadcn component design.

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#04 AgriCom

AgriCom is my final-year BTech project, an information-focused platform for farmers combining agri news, government schemes, learning resources, and IoT insights. Built on the MERN stack with a full admin dashboard and clean, modern UI.

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#05 iamharsh.in

Designed and developed a personal portfolio using Next.js, TypeScript, and Chakra UI, highlighting projects in full-stack development, analytics engineering, and cloud deployments.

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Harsh

Prajapati

Full Stack Developer (MERN + NextJs)

What i do.

Places i’ve worked.

Some of my works.