Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings
@krotrn
krotrn
Follow

Karan Kumar Sah krotrn

🎯
πŸŽ“ CSE Student | 🏫 NIT Arunachal Pradesh | 🌐 Full Stack Developer | 🧩 Problem-Solving | DSA |πŸš€ Continuous Learner

Highlights

  • Pro

Block or report krotrn

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don't include any personal information such as legal names or email addresses. Markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
krotrn /README.md

⚑ About Me

I am a Full Stack Engineer and Product Builder at NIT Arunachal Pradesh, focused on shipping scalable systemsβ€”not just "coding." I specialize in Building scalable full-stack systems using Next.js, PostgreSQL, and Docker.

Current Focus: Scaling campus-wide infrastructure and optimizing backend throughput with Redis & Nginx.


πŸ’Ό Professional Experience

πŸš€ Full‐Stack Developer Intern | Smallbus (AR Group Co.)

Jun 2025 – Aug 2025 Engineered the company's first-ever web platform, enabling the launch of online booking services.

  • Built the MVP: Built the initial frontend architecture with 20+ reusable React components, accelerating the MVP delivery by ~2 weeks.
  • Optimization: Restructured the monorepo and authored documentation, reducing new developer onboarding time by 50%.
  • Core Systems: Implemented mission-critical features (Auth, Booking, Accounts) and integrated 15+ core API endpoints for the client-side data layer.

πŸ› οΈ High-Impact Projects

🚚 Campus Connect Logistics Platform

Role: Lead Developer (Team of 5) A campus-scale delivery request & tracking system designed for 1,100+ students and staff.

  • Architecture: Self-hosted deployment using Docker containers.
  • Performance: Implemented Nginx for reverse proxying and Redis for a high-throughput notification queue.
  • Stack: Next.js 15 Β· PostgreSQL Β· Prisma Β· Docker Β· Redis

View Repository

πŸ’¬ Distributed Chat Engine

A backend-agnostic, real-time messaging engine decoupled from frontend logic.

  • System Design: Hybrid persistence model using PostgreSQL (user integrity) and MongoDB (high-volume chat logs).
  • Security: Implemented OAuth2 and JWT with Auth.js rotation.
  • Stack: Node.js Β· Socket.IO Β· TypeScript Β· MongoDB Β· Prisma

View Repository


πŸ† Key Achievements

  • πŸ₯‡ Winner, CAN Hackathon (NERIST): Built and deployed a fully functional Logistics MVP in just 6 hours.
  • 🧠 LeetCode: 500+ Problems Solved (Max Rating: 1628).
  • 🀝 President, Coding Club: Revived the official NIT AP coding community, growing it to 50+ active members.

πŸ› οΈ Technical Arsenal

Languages & Core

C++ TypeScript JavaScript

Infrastructure & Backend

Docker Redis Nginx Postgres Node.js

Frameworks

Next JS React TailwindCSS


πŸ“ˆ Engineering Metrics

LeetCode Stats GitHub Stats


🀝 Let’s Connect

Feel free to explore my work or reach outβ€”I’m open to internships and collaborations!

Pinned Loading

  1. coding-pundit-nitap/campus-connect coding-pundit-nitap/campus-connect Public

    A student-built e-commerce and delivery platform designed to connect the entire NIT Arunachal Pradesh campus community with its local vendors and canteens.

    TypeScript 3

  2. Chat_App Chat_App Public

    ChatApp β€” A production-grade, real-time messaging client built with Next.js 15, React 19, and TypeScript. Featuring Socket.IO-powered WebSockets, Redux Toolkit state management, Auth.js v5 authenti...

    TypeScript 6

  3. ChatApp-backend ChatApp-backend Public

    Real-time Chat Backend built with Node.js, Express, TypeScript, MongoDB, and Socket.IO. Supports direct and group messaging, message editing, reactions, file attachments, read receipts, and more β€” ...

    TypeScript 6 2

  4. Blog Blog Public

    This repository contains a React-based blog application developed to enhance React skills and explore various modern web development tools and practices. The project incorporates Redux Toolkit for ...

    JavaScript 5

AltStyle γ«γ‚ˆγ£γ¦ε€‰ζ›γ•γ‚ŒγŸγƒšγƒΌγ‚Έ (->γ‚ͺγƒͺγ‚ΈγƒŠγƒ«) /