Yogesh Chauhan

Software Engineer

I'm a full-stack developer who builds scalable web apps end-to-end — from database schemas and Node.js or Spring Boot APIs to polished React interfaces. Currently a Software Engineer at Work Companion.

A lifetime in projects

ClaimLens

A multi-tenant insurance SaaS that reads claim documents with OCR, checks damage photos for fraud, scores risk with an explainable rules engine, and answers coverage questions from the policy wording itself.

Java

Spring Boot

Next.js

PostgreSQL

Python

Gemini

View case study

Live Code

EcoExpress

An organic grocery e-commerce platform for the Indian market, built on a Spring Boot modular monolith where correctness lives in the database — plus a Smart Cart, Smart Fridge, and AI meal planner.

Java

Spring Boot

Next.js

TypeScript

PostgreSQL

Gemini

View case study

Live Code

Candor

Anonymous feedback platform that uses AI to moderate messages and turn your inbox into a trackable growth plan, with a real-time inbox.

Next.js

TypeScript

MongoDB

Gemini

Redis

View case study

Live Code

I love writing things down

How JWT Authentication Actually Works

Jul 10, 2026

What a JWT really is, why access and refresh tokens exist, and the security decisions that separate a toy auth system from a production one.

Understanding RAG: Retrieval-Augmented Generation from Scratch

Jul 5, 2026

How to give an LLM access to your own data — the anatomy of a RAG pipeline, from chunking and embeddings to retrieval and grounded generation.

Secure File Uploads with S3 Pre-Signed URLs

Jun 20, 2026

Why you should never proxy file uploads through your server — and how S3 pre-signed URLs let clients upload directly, securely, and at scale.

Where I've worked

Work Companion (WoCo)

Software Engineer

Oct 2024 - Present

Core engineer on WoCo PMS, a multi-tenant HR performance-management platform. Top frontend contributor, and led a backend optimization program that raised the codebase's quality score from 4.5 to 8.6/10 and cut authenticated-request overhead ~4×.

React

TypeScript

Redux Toolkit

Node.js

MongoDB

Redis

Agami Technologies

Software Specialist

Jun 2024 - Oct 2024

Worked on the BeGenieus platform — integrated OpenAI-powered chat and image generation, and delivered features across modules while collaborating closely with QA and product teams.

Vue.js

Node.js

MongoDB

Socket.io

OpenAI

Skills & technologies

Frontend

React

Next.js

TypeScript

JavaScript

Redux Toolkit

TanStack Query

Vue.js

Tailwind CSS

MUI

Vite

Backend

Node.js

Express.js

Java

Spring Boot

Spring Security

Python

FastAPI

Hono

REST APIs

Socket.io

Zod

Databases & Caching

MongoDB

PostgreSQL

MySQL

Prisma

JPA / Hibernate

pgvector

Flyway

Redis

AI Integrations

Google Gemini

OpenAI

Vercel AI SDK

Spring AI

RAG

OCR / Vision

Testing & Tools

Vitest

Jest

Playwright

Git

GitHub Actions

Docker

Maven

AWS S3 / R2

Cloudflare Workers

Vercel

People love my work

Get in touch

I'm currently looking for new opportunities. Whether you have a question or want to say hi, hit that button.

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