Parveen Kumar
Production platforms for fintech and HR-tech. Next.js, Node.js and React Native.
Peak load
ITR-deadline traffic in production
2021
Since
Services I Offer
Next.js websites, React Native apps, and on-page SEO on the home page — plus consultancy and CTO on the full services page.
Web Development
Custom websites and web applications built with Next.js — fast, SEO-friendly, and production-ready.
Mobile App Development
Cross-platform iOS and Android apps built with React Native — one codebase, both app stores.
On-Page SEO (Next.js)
Technical on-page SEO for Next.js websites, including AEO and GEO for AI answer engines. No off-page or link-building packages.
Featured Projects
A few products and platforms I've built — from founder ventures to client deliveries.
FileMyReturn
For FileMyReturn
Tax filing platform for a licensed e-Return Intermediary (ERIP001268), serving thousands of users daily.
Uhire
For Uhire · Reshav Anthal — Director & Founder
AI-powered hiring platform for Uhire — candidate portal, recruiter HRMS, and internal hiring workflows.
AnythingKart
Parveen Kumar — Founder
Founder-led next-gen marketplace with infinite-variety positioning. App live, marketplace launching 2026.
Client Testimonials
Don't just take my word for it. Here's what my clients have to say about working with me.
Chaitnya Rai Garg
Co-Founder
FileMyReturn
“Parveen's deep expertise in Next.js and Node.js enabled us to build a high-performance tax filing platform that seamlessly serves thousands of users daily. His attention to detail and ability to solve complex problems were crucial to our success.”
March 2024
Amit Singh
Founder
TravelGram
“Thanks to Parveen, our tour package platform has scaled rapidly. The intuitive user interface and solid backend infrastructure he delivered have received tremendous feedback from both users and our internal team.”
July 2024
Peter Hergens (PHED)
Founder
Zafari Travel
“Parveen built a robust booking system that transformed our operations and significantly improved our conversion rates. His technical guidance and collaborative approach made the entire process smooth and efficient.”
August 2024
Writing
Notes, problems, fixes, and learnings from real production projects.
Why I Standardize Every Node.js Project on UTC Time
A production engineering story about standardizing Node.js applications on UTC to prevent timezone bugs, offset errors, and cron failures.
Read postSeparating Workers From My API Created a Deployment Problem
A production engineering story about separating background workers from the API, and the unexpected deployment challenges that arose.
Read postWhy I Added Graceful Shutdown to Every Node.js Project
A production engineering story about handling Node.js deployments safely using graceful shutdown, SIGTERM, and PM2 reload mechanisms.
Read postAbout Me
Full-stack engineer building production platforms for fintech and HR-tech — Next.js, Node.js and React Native.
I'm Parveen Kumar, based in Bhiwani, Haryana. Since 2021 I've been turning ideas into scalable products with clean architecture and practical delivery.
SaaS, booking systems, business websites, and API-driven tools — for founders and teams worldwide.
3
Apps live on App Store & Google Play
5+ Years
Full-stack experience
Global
Startup and SME clients
Tech I work with
From MVP builds to production scaling — modern stack, maintainable code, and clear communication throughout the project.
Ready to start your next project?
Tell me about your idea — website, app, or custom software. I'll help you plan, build, and launch with a clear roadmap.
Quick response • Free consultation