Gagan Chauhan

Personal portfolio built with modern web technologies to showcase backend and full-stack projects.

A structured collection of notes and deep dives on AI, ML, DL, LLMs, RAG, AI Agents, Computer Science, and Software Engineering. Documenting my journey from first principles to modern AI systems.

MatchAI is an AI-powered MERN matchmaking platform that combines rule-based scoring and LLM insights to recommend compatible matches, generate introductions, and manage meaningful connections.

Ledger-based banking API using double-entry accounting. Ensures consistency via immutable entries, idempotent transactions, JWT auth, and atomic MongoDB operations for secure, reliable fund transfers.

AI-powered interview preparation platform with a full-stack architecture enabling real-time interview practice, intelligent feedback, and performance analysis via AI-generated questions. Built with MERN, Redis rate limiting, JWT auth, and Google GenAI integration for scalable, realistic interview simulations.

Minimalistic, mobile-responsive portfolio.

This repository includes my solutions for Dynamic Programming – Level 2 problems, based on the Pepcoding YouTube series.

My journey learning TypeScript with code examples and projects