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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

Deepak Kumar, senior software and AI engineer, in New Delhi
Deepak Kumar, New Delhi. MERN · Next.js · NestJS · AWS.

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.

ProjectWhat it didResult

Live election dashboard

India Today Group | Aaj Tak · 2024–25

Node.jsReactRedis pub/subSSE

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

ReactNode.jsOpenAIElevenLabs

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

AngularNode.jsMySQLAWS

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

Visit

Video and audio meeting platform

Humanize · 2023–24

WebRTCSocket.ioNestJSReact

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

Visit
See every project in detail

Recommendations

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…

Amit Saraswat

Amit Saraswat

System Analyst, Instant Systems Inc

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.

Maya Tripathi

Maya Tripathi

Full-Stack Developer, Teamwork Arts

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.

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.

Replies in ~24h Delhi NCR or fully remote +91 82852 57636

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.

Message me