SHUBHAM DUBEY

Software Developer

For business inquiries, email me at
shubhamkumar.dubey02@gmail.com

ABOUT ME

I am a backend software developer based in Kolkata, bridging a background in mechanical engineering with a passion for architecting scalable, production-ready systems. Specializing in Node.js, TypeScript, PostgreSQL, and AWS, my technical focus lies in building robust enterprise APIs and microservices using modern frameworks

MOTIVATION

My career is currently rooted in advanced backend development, dedicating my energy to mastering modern frameworks like ExpressJS and NestJS.,After wrapping up my tenure at Infosys, I've been focused on intense upskilling, building scalable domain projects (like Flashsale and Payment Wallet) to push my technical boundaries.,Beyond code, my long-term vision encompasses continuous personal development.

SKILLS

TOOLS & TESTING

GitHub

Git

VS Code

Postman

Jest

DATABASES & MESSAGING

PostgreSQL

Kafka

MongoDB

Redis

LANGUAGES

TypeScript

SQL

JavaScript

AI & GENAI

OpenAI API

Prompt Engineering

BACKEND

RESTful APIs

Node.js

NestJS

Express.js

DEVOPS & CLOUD

CI/CD

AWS

Docker

Kubernetes

Linux

FRONTEND

Next.js

React.js

WORKS/projects

VIEW

Paytm Clone

Full-stack digital payments platform with wallet & P2P transfers

A production-inspired Paytm clone built during Harkirat Singh's Cohort 2.0 program. Implements core fintech features including user onboarding, wallet management, peer-to-peer money transfers, and transaction history — all with atomic DB transactions to prevent double-spending.

VIEW

Flash Sale System

High-concurrency e-commerce flash sale platform

A production-grade flash sale system designed to handle 10,000 concurrent purchase requests without overselling. Built with a monolith-first approach then migrated to microservices using the Strangler Fig pattern.