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Chandan9574/README.md

Hi πŸ‘‹, I'm Chandan Kumar

CSE Undergraduate @ NIT Mizoram | Backend Developer | Problem Solver

Developer coding


πŸ‘‹ A Little About Me

I'm a Computer Science undergraduate at NIT Mizoram interested in backend engineering, problem solving, and building practical software systems.

  • πŸ”­ Currently developing a Movie Booking Backend API
  • βš™οΈ Interested in Backend Development, REST APIs, Databases & Software Engineering
  • 🧠 Solved 450+ DSA problems on LeetCode
  • πŸ”¬ Completed a Summer Internship at IIT Delhi in Deep Learning & Computer Vision
  • πŸ‘¨β€πŸ’» Developer Member at Coding & AI Club, NIT Mizoram
  • 🌱 Currently improving my DSA, Backend Development & Core CS fundamentals
  • πŸ“« Email: bt24cs038@nitmz.ac.in

🧩 Things I've Built

🩺 Chest X-ray Disease Detection

TensorFlow β€’ Keras β€’ CNN β€’ Computer Vision

Deep learning project developed during my Summer Internship at IIT Delhi for medical image classification.

Highlights

  • 🩻 Binary Chest X-ray classification
  • πŸ₯ CheXpert multi-label disease classification
  • 🧠 CNN-based image classification
  • πŸ“ˆ 88.62% test accuracy
  • βš™οΈ TensorFlow/Keras model training & evaluation
  • πŸ”§ ML environment setup and dependency debugging

⚑ REST API Rate Limiter

Node.js β€’ Express.js β€’ Algorithms

Middleware designed to control API traffic and prevent request flooding.

Highlights

  • ⏱️ Sliding-window algorithm
  • 🌐 Per-IP request tracking
  • 🚫 HTTP 429 handling
  • 🧩 Express middleware
  • ⚑ In-memory HashMap

πŸ“š Library Management System

Java β€’ Swing β€’ OOP

Desktop application for managing books and library transactions.

Highlights

  • πŸ“– Book management
  • πŸ”„ Issue & return operations
  • βœ… Input validation
  • πŸ–₯️ Java Swing interface
  • 🧱 OOP-based design

🎬 Movie Booking Backend API

Node.js β€’ Express.js β€’ MongoDB β€’ JWT

RESTful backend for an end-to-end movie ticket booking system.

Highlights

  • πŸ” JWT Authentication
  • πŸ‘₯ Role-Based Access Control
  • 🎟️ Seat validation & reservation
  • πŸ—„οΈ MongoDB + Mongoose
  • πŸ—οΈ MVC architecture
  • ⚠️ Centralized error handling

πŸ”¬ Internship

Indian Institute of Technology Delhi

Summer Intern Β· May 2026 – July 2026

Worked on deep learning and computer vision for Chest X-ray disease detection.

  • Studied CLIP and I-JEPA research papers and presented their core concepts
  • Evaluated deep learning models using TensorFlow/Keras
  • Worked with binary and CheXpert multi-label classification
  • Configured ML environments and resolved TensorFlow compatibility issues
  • Trained a binary classification model for 20 epochs
  • Achieved 88.62% test accuracy with 0.2623 test loss

🧰 Technical Toolkit

πŸ’» Languages

βš™οΈ Backend & Web

πŸ—„οΈ Databases

πŸ€– AI / ML

πŸ”§ Tools


🧠 Problem Solving

Focused on:

Arrays β€’ Strings β€’ Binary Search β€’ Linked Lists β€’ Stacks β€’ Queues β€’ Trees β€’ Graphs β€’ Greedy β€’ Backtracking β€’ Dynamic Programming


πŸ† Milestones

  • πŸ₯‡ 1st Position β€” Proof Ideathon of Maths, NIT Mizoram
  • πŸ₯ˆ 2nd Position β€” Debate Competition, NIT Mizoram
  • πŸ’» 450+ DSA Problems solved on LeetCode

🀝 Community & Leadership

Coding & AI Club β€” NIT Mizoram

Developer Member Β· 2024 – Present

  • Contributed to the development and maintenance of the club website
  • Participated in technical initiatives and development activities

πŸ“ˆ GitHub Activity

Chandan's GitHub Activity Graph


🌐 Find Me Online

Build β€’ Solve β€’ Learn

Pinned Loading

  1. Chest-Xray-Disease-Detection Chest-Xray-Disease-Detection Public

    Evaluation of Deep Learning Models for Chest X-ray Disease Detection | IIT Delhi Summer Internship

    Jupyter Notebook 2

  2. Chest-XRay-Inference-App Chest-XRay-Inference-App Public

    Python