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SUNNYKUMAR1232/README.md

Hi πŸ‘‹, I'm Sunny Kumar

Typing SVG


πŸ‘¨β€πŸ’» About Me

I am a Full Stack and Systems Developer specializing in building scalable backend and embedded systems.
I'm currently pursuing a B.Tech in Electrical Engineering at the National Institute of Technology, Rourkela, expecting to graduate in July 2026.

  • πŸš€ I have experience in optimizing concurrency, caching, and database performance, which has led to delivering up to 30% faster backend responses.
  • πŸ› οΈ My core tech stack includes Node.js, TypeScript, C/C++, and Python.
  • πŸ—οΈ I have a strong background in designing and developing Microservices, RESTful APIs, distributed systems, and secure authentication mechanisms.
  • 🀝 I enjoy collaborative problem-solving and have experience leading small feature teams to ship production-grade software.

πŸ› οΈ My Tech Stack

Languages

Backend Development

Frontend Development

Databases

DevOps & Cloud


πŸš€ Featured Projects

High-Performance In-Memory Store (Redis Clone)
A Redis-inspired in-memory data store developed to support concurrent clients and non-blocking I/O.

Technologies Used: C/C++, Linux, TCP/IP, Data Structures

  • Implemented custom hash tables achieving O(1) average time complexity for lookups and ensuring 99.99% data persistence.
  • Reduced response latency by 35% through optimized buffer management and advanced threading techniques.

View on GitHub β†’

Secure Authentication API (RBAC and OAuth 2.0)
A secure and robust authentication API featuring Role-Based Access Control (RBAC) across more than 15 protected endpoints.

Technologies Used: Node.js, TypeScript, Express, Passport, PostgreSQL

  • Integrated OAuth 2.0 for standardized identity verification with providers like Google and GitHub.
  • Led the backend module design and implemented schema validation, which decreased authentication errors by 20%.

View on GitHub β†’


πŸ† Competitive Programming & Achievements

I am an active competitive programmer with a passion for solving complex algorithmic problems.

  • 🌟 LeetCode Peak Rating: 1700+ in global contests
  • πŸ’» Problems Solved: Over 800+ algorithmic challenges on various platforms
  • πŸ’‘ Efficiency Gains: Consistently improve my solutions, achieving an average of 22% better runtime efficiency and 28% lower memory usage
  • πŸŽ“ Certification: Machine Learning Specialization by Andrew Ng (Coursera)
LeetCode Stats LeetCode Contest Stats

πŸ“Š My GitHub Stats

Sunny Kumar's GitHub Stats Top Languages
GitHub Streak
Sunny's Graph

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  1. Auth Auth Public

    TypeScript

  2. Redis-Clone Redis-Clone Public

    C++