Projects
🚦 Distributed Rate Limiter
Stack: TypeScript, Node.js, Express, Redis, Lua, Docker, Zod
Built a production-grade distributed rate limiter supporting Leaky Bucket, Fixed Window, Sliding Window, and Token Bucket algorithms, using Lua scripts for atomic Redis operations to ensure correctness under concurrent access.
Deployed a horizontally scalable Redis cluster with 3 masters and 3 replicas, ensuring race-free consistency and fault tolerance under sustained peak traffic.
Focus: Concurrency • Scalability • Fault Tolerance • Backend Systems
🛍️ E-Commerce Backend API
Stack: Node.js, Express, MongoDB, Redis, Cloudinary , Zod, Docker, Swagger
A scalable and production-grade backend designed for e-commerce applications. Implemented role-based architecture, token rotation, and IP-based rate limiting to ensure secure and efficient access control. Reused the authentication API for token management to simplify reusability and maintainability across different modules.
Integrated cart management using Redis for high-performance caching and session persistence, ensuring minimal latency for real-time cart updates. Added API documentation with Swagger for smooth developer onboarding and testing. Includes Zod-based schema validation, Dockerized container setup, and environment-specific configurations for scalability.
Focus: Security • Scalability • Reusability • Clean Architecture
💬 Real-Time Chat Application
Stack: React, Node.js, Express, MongoDB, Redis, Socket.io, Zustand, Docker
Full-stack real-time chat platform supporting private and group messaging with live user status and media sharing. Implemented Socket.io for low-latency communication and Redis for managing socket sessions and message queues. Reused the authentication API for token management and session rotation, ensuring secure, reusable architecture.
Features Reusability of auth API, Zustand state management, rate limiting, and Dockerized deployment for smooth scaling and reliability. Designed with a focus on performance, modularity, and real-time experience.
Focus: Real-time • Scalability • Security • Clean Architecture
🔐 Authentication API
Stack: Node.js, Express, Postgres, Redis, Nodemailer, Zod, Docker
Secure, production-ready authentication system built with modular APIs for login, signup, and token refresh. Implemented token rotation, IP-based rate limiting, and Redis-based session management to prevent token misuse and enhance scalability.
Added email verification and password reset flows using Nodemailer with JWT links. Fully Dockerized for easy deployment and consistent environment setup across systems.
Focus: Security • Reusability • Scalability • Reliability
📦 File Compression Utility (Huffman Coding)
Stack: C++, STL, File I/O
Implemented a lossless file compression utility using Huffman Coding to reduce file size by 50–60% through optimal prefix-free encoding. Built the complete compression and decompression pipeline ensuring accurate data reconstruction.
Designed an efficient encoder–decoder workflow with bit-level file handling for compressed output generation. Utilized priority queues (min-heaps) to construct Huffman trees with O(n log n) time complexity while maintaining zero data loss.
Focus: Algorithms • Data Structures • File Systems • Performance Optimization