Passionate about building scalable web applications and real-time systems using the MERN stack, Redis, Socket.IO, and Docker.

Currently focused on backend engineering, system design, DevOps fundamentals, distributed systems, and problem solving with Java & DSA.

• Building scalable full-stack applications using MERN stack
• Exploring real-time architectures with Socket.IO & Redis
• Dockerizing and deploying production-ready applications
• Deploying applications on Vercel, Render, and cloud platforms
• Practicing DSA in Java with 50+ problems solved
• Building a WhatsApp Backend to strengthen backend engineering concepts
• Interested in Backend Engineering, DevOps, Cloud, and scalable architectures

HTML, CSS, JavaScript, React.js

Node.js, Express.js, REST APIs, JWT Authentication, Socket.IO

MongoDB, SQL, Redis

Docker, Kubernetes, Git, GitHub, Postman, Vercel, Render

Java, Data Structures & Algorithms, System Design

A scalable full-stack stock trading platform inspired by Zerodha Kite.

• JWT Authentication & Authorization
• Real-time stock price updates
• Socket.IO based live trading system
• Redis caching for optimized performance
• Dockerized application architecture
• Holdings & portfolio management dashboard

Frontend:
https://zerodha-iota-azure.vercel.app/

Backend API:
https://docker-setup-backend-latest.onrender.com

Dashboard:
https://zerodha-dashboard-iota.vercel.app/

Main:
https://github.com/Harshjadhav003/ZERODHA

Backend:
https://github.com/Harshjadhav003/zerodha-backend

Frontend:
https://github.com/Harshjadhav003/zerodha-frontend

Dashboard:
https://github.com/Harshjadhav003/zerodha-dashboard

Docker Setup:
https://github.com/Harshjadhav003/zerodha-docker

A backend-focused real-time messaging system inspired by WhatsApp, built to strengthen production-level backend engineering concepts.

• Node.js & Express backend
• MongoDB & Mongoose
• User registration & login
• Password hashing with bcrypt
• JWT authentication
• Protected routes with authentication middleware
• Chat APIs
• Message APIs
• Chat & Message data models
• Socket.IO integration planned

• Real-time messaging
• WebSocket architecture
• Authentication & authorization
• Scalable backend architecture
• MongoDB optimization
• Production-ready backend practices

Status: 🚧 Actively building

Full-stack property listing platform with authentication, CRUD operations, and backend integration.

Live:
https://airbin-fullstack-1-32hl.onrender.com/listings

Repository:
https://github.com/Harshjadhav003/AIRBIN-FULLSTACK

AI-powered chatbot application with backend integration and responsive UI.

Repository:
https://github.com/Harshjadhav003/NeuraChat-1

Currently practicing Data Structures & Algorithms in Java with a focus on interview and placement preparation.

• 50+ LeetCode problems solved
• Java
• Arrays
• Strings
• Hashing
• Binary Search
• Two Pointers
• Sliding Window
• Recursion & Backtracking
• Prefix Sum
• More topics continuously being added

View my LeetCode Profile

DSA Progress: 50+ problems solved and continuously improving

• Backend Engineering
• Real-Time Systems
• WhatsApp Backend
• Docker & Kubernetes
• DevOps & CI/CD
• System Design
• Distributed Systems
• Java & DSA
• Cloud Deployment

Build → Understand → Practice → Deploy → Improve

Currently focused on becoming a strong Backend Engineer by building real-world systems and consistently improving problem-solving skills.

Always learning and building scalable systems