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Hi, I'm Lakshay Mahajan

Backend Engineer

I build reusable backend systems with Node.js/Express, MongoDB, and AWS SNS/SQS/Lambda. My centralized authentication service powers multiple live apps, with JWT (RS256), Google OAuth, rate limiting, and async email notifications.

View Auth Architecture
Lakshay Mahajan

About Me

I’m Lakshay, a backend developer focused on building authentication systems and event-driven services. My auth service uses Node.js/Express, MongoDB, JWT (RS256), Google OAuth, and AWS SNS→SQS→Lambda for background email notifications.

I prioritize clean architecture and real deployments. Right now I’m improving testing, observability, and failure handling so the systems I build are easier to operate and scale.

Featured Projects

Authentication Microservice Architecture
Solo

Authentication Microservice Architecture

Centralized auth microservice reused across multiple apps. Email/password + Google OAuth, JWT (RS256) with secure cookies, per-route rate limiting, and async login/signup notifications via SNS→SQS→Lambda.

Express.jsAWS SNSAWS SQS+5
ResourceHub - Resource Management Platform
Solo

ResourceHub - Resource Management Platform

Centralized resource link management platform with smart organization, search, and community sharing. Features private/public resources, intelligent tagging, category filtering, and seamless Google OAuth authentication with cookie-based sessions.

ExpressMongoDBDocker+2
Knowledge Store - Book Rental Platform
Solo

Knowledge Store - Book Rental Platform

Modern book rental platform with multi-category book system, advanced authentication, and Redux state management. Features Google OAuth integration, protected routes, shopping cart functionality, wishlist management.

ExpressMongoDBDocker+3

Skills & Technologies

Backend

Node.js
Express
MongoDB
JSON Web Token

DevOps

Docker
Linux
AWS Lambda
Amazon IAM
Amazon SQS
GitHub Actions

Development Tools

Git
Github
Postman
ESLint
Husky

Frontend

JavaScript
React
React Redux

Technical Newsletter

Deep dives into how things work under the hood

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I write short explainers to make backend concepts accessible: SSL certificates, UPI flow, and Google OAuth (with diagrams).

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Get in Touch

Have a question or want to work together? Feel free to reach out!