DEBASHIS

I build real-time systems that are fast, scalable and reliable

Debashis Nandy, Senior Full-Stack Engineer
// stack.config.ts
const stack = {
  realtime: ['Socket.io',
    'Redis Pub/Sub'],
  front: ['React', 'TS'],
}; // SendBird: gone ✓
✳ CHAT PLATFORM/Real-time
Let's TalkDebashisSenior Full-Stack Engineer
REACT NODE.JS TYPESCRIPT SOCKET.IO REDIS POSTGRESQL DOCKER AWS PLAYWRIGHT

SELECTED
WORK (01)

Production software that pays for itself

SaaS replacementProductionReal-time

IN-HOUSE CHAT PLATFORM

A Slack-style support platform built from scratch to replace SendBird — presence, typing events, channel collaboration, infinite history. The thing the business runs on, minus the subscription.

SendBird → 0recurring bill removed
Redis Pub/Subhorizontal scale
E2E Playwrighttested in prod
// stack.config.ts
const stack = {
  frontend: ['React', 'TypeScript',
    'TanStack Query', 'Redux Toolkit'],
  backend: ['Node.js', 'Express',
    'Socket.io', 'Prisma'],
  data: ['PostgreSQL', 'MongoDB',
    'Redis Pub/Sub'],
  deploy: ['Docker'],
}; // SendBird: uninstalled ✓
(01)

Full-Stack Development

React, Node.js, TypeScript end to end — from schema to pixel.

(02)

Real-Time Systems

Sockets, presence, pub/sub fan-out. The hard, stateful stuff.

(03)

Performance Engineering

Profiling, caching, pipelining — ship fast software, keep it fast.

(04)

Mentoring & Training

4 devs mentored, internal frontend training, AI-assisted workflows.

EXPERIENCE (02)

5+ years shipping React & Node.js in production

2022 — NOW

Senior Software Engineer

Cybage Software · Pune

Architected the real-time chat platform that replaced SendBird. Redis caching & pipelined batching, per-user rate limiting, Playwright E2E, Docker. Mentor 4 devs, run frontend training — Claude Code and Antigravity in the loop.

2021 — 2022

Senior Full-Stack Developer

Abchi Technologies

Node.js services (Express, Nest.js) and React frontends for clients across industries — Next.js, Gatsby, Tailwind. Mentored interns; delivered on time.

2019 / 2021

Smart India Hackathon — Winner

Ministry of Water Resources, Govt. of India · BCA + MCA, Brainware University

SKILLS (03)

The toolbox — sharpened in production

TYPESCRIPT REACT NODE.JS EXPRESS NEST.JS SOCKET.IO TANSTACK QUERY REDUX PRISMA POSTGRESQL MONGODB REDIS DOCKER AWS GCP CI/CD PLAYWRIGHT TAILWIND

// currently pursuing AWS Solutions Architect — Associate