MERN · Next.js · NestJS · AWS
Full stack developer in India — Deepak Kumar
Product, schema, API, front end, SEO and deploy. I have carried all six on my own products and inside teams of thirty, which is the only honest definition of full stack I know.
MERN
Primary stack
2
Products owned end to end
500+
Clinics on one system
4
Products I own

The full stack, end to end
PlanToday.in is the cleanest proof: a Next.js front end, a NestJS and TypeORM API over MySQL, Redis and BullMQ for background work, Razorpay for payments, phone-OTP auth with JWT sessions across three roles, and programmatic SEO generating a landing page for every city × service pair. Thirteen backend modules, one engineer.
- Front end — Next.js, React, TypeScript, Tailwind, React Query and Zustand
- API — NestJS and Express, REST contracts, TypeORM and Mongoose, queue workers
- Data — MySQL and MongoDB schema design driven by the read patterns that matter
- Delivery — Docker, CI/CD, AWS, PM2, and observability wired in before launch
Full stack including the AI layer
At India Today Group the same stack carries Generative AI: article generation, AI summaries and semantic search built with OpenAI and LangChain, retrieval on MongoDB Atlas Vector Search, and an editorial review step before anything reaches a reader. AI is a feature inside the product, not a separate system bolted to the side of it.
- RAG pipelines with chunking tuned to the corpus and evaluation before rollout
- Voice synthesis — articles to podcast audio, cutting production time roughly 80%
- Structured prompting behind typed API contracts, so failures are catchable
- Cost and latency budgets per call, monitored the same way as any other dependency
Hiring a full stack developer in India
One engineer who can move from a slow query to a re-render to a cache header without a handover is usually worth more than two specialists and a coordination meeting. I am in New Delhi, available on-site across Delhi NCR or fully remote, for senior roles or scoped contract work.
Selected work
Shipped for employers and clients.
Seventeen products across news media, healthcare, real estate and adtech. A few with numbers attached.
Live election dashboard
India Today Group | Aaj Tak · 2024–25
Middleware that ingests results feeds from multiple sources, normalises them and publishes to editorial CMS platforms in real time, with a canvas-rendered constituency map on the front end.
Live results delivered to millions of daily users through election night, without a stall
AI podcast generation platform
India Today Group | Aaj Tak · 2025
Turns written news articles into podcast-ready audio — article processing, structured prompting, AI voice synthesis and an editorial dashboard to manage generation.
Cut podcast production time by roughly 80%
Patient relationship management
Clove Dental (via Instant Systems) · 2024–25
Internal PRM handling appointments, follow-ups and clinic-level analytics, built as modular services with REST APIs for the clinical front end.
In use across 500+ clinics and 1,200+ practitioners
VisitVideo and audio meeting platform
Humanize · 2023–24
Zoom-style real-time video and audio calling with screen sharing and meeting management, on a scalable signalling and media layer.
Real-time calling shipped end to end
VisitRecommendations
From people who shipped with me.
“Hard Working, Intelligent, Committed, Sharp and an Excellent team player are just a couple of words that can aptly describe Deepak. I worked with him for almost 3 years on the same project. He is technically very sound, always ready to learn new things, accept new challenges and the best part about him is that he alway…”
“We did a lot together and Deepak is really very talented, he learns new technology quickly and is very hard working. I felt very good after working with him, he is a person of very good personality.”
Straight answers
Hiring a full stack developer in India — the usual questions.
In Deepak Kumar's case: product definition, database schema, API, front end, SEO and deployment. He has delivered all six on his own products — PlanToday.in and TrendMeToday.com — and inside product teams at India Today Group, Clove Dental, Humanize and SYNQY Corporation.
MERN — MongoDB, Express.js, React.js and Node.js — extended with Next.js, NestJS and TypeScript, on MySQL where relational data fits better, with Redis for caching and queues and AWS for infrastructure.
Yes. He builds Generative AI features on the same stack — OpenAI and LangChain, retrieval-augmented generation on MongoDB Atlas Vector Search, semantic search and voice automation — currently in production at India Today Group.
Send a short description of the product or problem through the contact page. You get a reply within 24 hours, a short call to scope it, and a written estimate with a timeline before any work begins.
Related
Other ways people search for this.
Hiring, or need something built?
Open to senior full-stack and AI engineering roles, and to focused contract work. Delhi NCR or fully remote. I reply within 24 hours.
What I take on
Full-stack product build
React, Next.js, Node, NestJS, MongoDB and MySQL — from idea to production.
AI features that ship
OpenAI and LangChain, RAG, semantic search, content and voice automation.
Architecture and scale
Microservices, real-time pipelines and caching — proven at national news scale.
Founding engineer work
Idea to MVP to scale, with SEO and analytics built in from the start.