The Great Wave off Kanagawa by Katsushika Hokusai — cover art

harsh sharma

software engineer

india · open to work

TL;DR

self-taught and endlessly curious.

currently learning GenAI, LangChain, and system design

i enjoy understanding how things work under the hood

outside tech, i like chess (~1700 rapid), sketching, f1, and music and movies

LINKS

github linkedin medium leetcode

projects

Distributed Rate Limiter

High-performance token-bucket rate limiting service in Go.

GoRedisLua

source

Idempotency Layer

Go HTTP middleware guaranteeing exactly-once execution per key under concurrent retries.

GoPostgreSQLRedisLua

source

Sysiqwip

Interactive system-design learning platform with drag-and-drop architecture and live simulators.

Next.jsPostgreSQLPrismaNeonDB

source live

view all projects →

skills

Languages

TypeScript

JavaScript

C++

Backend & Data

Node.js

Express

PostgreSQL

MongoDB

Redis

Prisma

Firebase

Frontend

React

Next.js

Tailwind

shadcn/ui

Tools

Git

GitHub

Vercel

Bun

VS Code

Docker

Postman

experience

Banao Technologies

Internship

Full Stack Developer Intern

Jan, 2026 – Apr, 2026• Remote, India

Developed and maintained backend systems using MongoDB, Express.js, and Node.js; tested 10+ REST API endpoints for integration reliability
Debugged backend issues, reducing reported system errors by 40% through proactive troubleshooting
Collaborated with the frontend team on responsive UI and query-level performance improvements

ReactNode.jsExpressMongoDBREST APIsTypeScript

B2B

B2B Technology Firm

Internship

Full Stack Developer Intern

Sep, 2025 – Oct, 2025• Lucknow, India

Worked on a real-time multiplayer application using Next.js, with shared state synchronized across 50+ concurrent clients during testing
Reworked the initial Firebase Realtime Database architecture due to concurrency and synchronization issues, implementing a custom TypeScript WebSocket backend with a single authoritative state

Next.jsTypeScriptWebSocketsNode.jsReal-time StateFirebase

Google Developer Student Clubs

Leadership

CP / DSA Lead

Oct, 2024 – Jul, 2025• College Campus

Led problem-solving sessions and workshops on Data Structures & Algorithms
Organized coding competitions and competitive programming events for college students

C++DSAAlgorithmsCompetitive ProgrammingProblem Solving

activity