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React · Next.js · New Delhi, IndiaFull-Stack Developer in India
I'm Vansh Kashyap, a full-stack developer based in New Delhi, India. I build web and mobile products end to end with React and Next.js — from the interface through authentication, database, APIs and deployment — and I've shipped 10+ live apps you can open right now.
The full stack, one developer
I take a product from an idea to a deployed, maintained app — so you don't have to stitch together a front-end freelancer, a back-end freelancer and a DevOps person.
- Front end — React, Next.js, TypeScript and Tailwind, responsive on every screen.
- Authentication — sign-in, sessions and access control with Supabase or Firebase.
- Database — data modelling and real-time data with Supabase and Firestore.
- APIs — REST integrations and server routes that hold the product together.
- Deployment — shipped on Vercel with domains, environment config and handover docs.
- Mobile — Android builds from the same codebase where it makes sense.
Live applications
All built by me and open to click — real products, not screenshots.
My stack
I also handle technical SEO and deployment, so the product ships fast, ranks and stays maintainable.
FAQ
What kind of apps do you build?
Web applications, dashboards, internal tools and Android apps — with React, Next.js, Supabase and Firebase. See my live work.
Do you work across the whole stack?
Yes — front end, authentication, database, APIs and deployment. I take a product from idea to a live, maintained app.
Do you build mobile apps too?
Yes. I ship Android apps, sometimes from the same codebase using Capacitor. I have several live on real phones.
Do you take freelance projects in India?
Yes, I take selected freelance and contract full-stack work, remote from New Delhi. Contact me.
Have a web app to build?
Tell me what you need and I'll scope it — interface to deployment.