JD

Hi, I'm Rohan Mahajan

Full Stack JavaScript Developer

Senior Software Engineer crafting scalable web applications with modern technologies. Passionate about clean code, performance optimization, and delivering exceptional user experiences.

About Me

My Journey

Experienced full stack JavaScript developer with a demonstrated history in IT/Digital. Expert in React, Node.js, Go, and PostgreSQL with over 6 years of professional experience building scalable web applications.

Currently serving as a Senior Software Development Engineer at Walmart Global Tech, where I lead development of high-performance e-commerce solutions serving millions of users.

Previously contributed to innovative projects at Nagarro, Gartner, and Publicis Sapient, consistently delivering robust solutions that drive business growth and enhance user experiences.

Frontend Excellence

React, Next.js, TypeScript

Backend Mastery

Node.js, Go, REST APIs

Data Engineering

PostgreSQL, BigQuery

Cloud & DevOps

AWS, Docker, CI/CD

Technical Skills

Frontend

React0%
Next.js0%

Language

TypeScript0%

Backend

Node.js0%
Go0%

Database

PostgreSQL0%
BigQuery0%

Cloud

AWS0%

DevOps

Docker0%

Experience

Senior Software Development Engineer

2022 - Present
Walmart Global Tech•Bangalore, India

Leading development of scalable e-commerce solutions serving millions of users. Architecting microservices with Node.js and Go, optimizing database performance, and implementing CI/CD pipelines.

  • ▸Improved application performance by 40% through code optimization
  • ▸Led a team of 5 developers on critical product features
  • ▸Implemented automated testing reducing bugs by 60%

Senior Software Engineer

2020 - 2022
Nagarro•Gurgaon, India

Developed full-stack applications using React, Node.js, and PostgreSQL. Collaborated with cross-functional teams to deliver high-quality software solutions for enterprise clients.

  • ▸Built responsive web applications serving 100k+ users
  • ▸Reduced API response time by 50% through optimization
  • ▸Mentored junior developers and conducted code reviews

Software Engineer

2019 - 2020
Gartner•Gurgaon, India

Worked on data analytics platforms using React and BigQuery. Developed interactive dashboards and reporting tools for business intelligence.

  • ▸Created data visualization components used across multiple products
  • ▸Implemented real-time data processing pipelines
  • ▸Improved dashboard loading speed by 35%

Associate Software Engineer

2018 - 2019
Publicis Sapient•Bangalore, India

Started career developing web applications using JavaScript, React, and Node.js. Gained experience in agile development methodologies and modern web technologies.

  • ▸Delivered 15+ client projects on time and within budget
  • ▸Learned modern development practices and tools
  • ▸Contributed to open-source projects and internal tools

Featured Projects

A showcase of my recent freelance work and personal projects, demonstrating expertise in full-stack development and modern web technologies.

Royalerado
Featured
2023

Royalerado

A comprehensive e-commerce platform built with modern web technologies. Features include user authentication, product catalog, shopping cart, and payment integration.

ReactNext.jsNode.jsPostgreSQLStripe
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UI/UX Ops
Featured
2023

UI/UX Ops

A design operations platform that streamlines the design-to-development workflow. Includes design system management, component library, and collaboration tools.

ReactTypeScriptFigma APIAWSDocker
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Interested in working together on your next project?

Latest Blog Posts

Sharing insights about web development, software architecture, and the latest technologies.

Clean Code at Scale: Engineering Practices That Keep Teams Fast
August 6, 2025•8 min read

Clean Code at Scale: Engineering Practices That Keep Teams Fast

How consistent coding habits, pragmatic architecture, and clear ownership help teams ship faster without sacrificing quality.

clean-codeengineeringteamwork
Read More
Scaling E-Commerce Experiences: Lessons from 10+ Years of Web Engineering
August 6, 2025•8 min read

Scaling E-Commerce Experiences: Lessons from 10+ Years of Web Engineering

A practical look at performance, architecture, and clean delivery patterns used to keep high-traffic commerce experiences fast and reliable.

performancearchitectureecommerce
Read More

Get In Touch

Ready to discuss your next project or explore opportunities? I'd love to hear from you. Let's build something amazing together.

Let's Connect

I'm always interested in hearing about new opportunities, whether it's a freelance project, full-time position, or just a chat about technology.

Email

john.doe@example.com

Phone

+91 98765 43210

Location

Bangalore, India