Building production-grade systems with Go, PostgreSQL, Redis, and WebSocket

I'm a final-year B.Tech CS student at IIIT Bhagalpur with a passion for building scalable backend systems and solving complex problems.

• 💻 Backend Engineering: Building distributed systems with Go, PostgreSQL, Redis, and WebSocket
• 🏗️ Production Experience: Deployed real-time applications handling 100+ concurrent connections with sub-50ms latency
• 🧠 Problem Solver: 700+ problems solved on LeetCode (C++)
• 🌱 Currently Learning: Event-driven architectures, microservices patterns, and system design
• 📫 Reach me: ajay.2201075cs@iiitbh.ac.in

Go · PostgreSQL · Redis · Docker · Deployed

Production-ready URL shortener with advanced caching and analytics

• ⚡ Sub-100ms p95 latency with Redis caching layer
• 🔐 Crypto-secure short code generation with collision detection
• 📊 Real-time click analytics and access tracking
• 🚀 Deployed on Render with zero-downtime updates
• 🌐 Live Demo

Go · WebSocket · Redis Pub/Sub · PostgreSQL · React

Distributed real-time messaging platform with horizontal scaling

• 🔄 100+ concurrent WebSocket connections
• 📡 Redis Pub/Sub for multi-instance message synchronization
• 👥 Real-time presence tracking with heartbeat mechanism
• ⌨️ Typing indicators with automatic timeout using Redis TTL
• 📱 Direct messaging with unread counts

Node.js · Express · MongoDB · React

Full-stack inventory tracking system with RESTful API

• 🔐 JWT authentication and authorization
• 📊 Real-time inventory updates
• 🎨 React frontend with responsive design

Backend:
  - REST API Design & Development
  - WebSocket Real-Time Communication
  - Redis Caching & Pub/Sub Patterns
  - Database Design (PostgreSQL, MongoDB)
  - JWT Authentication & Authorization
  - Docker Containerization

System Design:
  - Distributed Systems (Redis Pub/Sub)
  - Real-Time Architectures
  - Caching Strategies
  - Horizontal Scaling Patterns
  - Connection Management

Problem Solving:
  - Data Structures & Algorithms (700+ LeetCode)
  - System Design Interviews
  - Performance Optimization

700+ Problems Solved | C++

💡 Open to Backend Engineering opportunities and collaborations on distributed systems projects