👋 Hi, I'm Junaid
💻 Backend Developer (Java + Spring Boot) ⚡ Focused on building scalable backend systems & real-time applications 🧠 Strong problem-solving skills with deep DSA practice
🚀 Tech Stack
📌 Projects
🧠 Smart Quiz Platform (Real-Time System)
- Built a real-time quiz platform using Spring Boot + WebSockets (STOMP)
- Designed APIs for quiz creation, participation, and gameplay
- Implemented live leaderboard updates with real-time ranking
- Ensured fair gameplay with controlled navigation & timed questions
📄 PDF Summarizer Microservice
- Designed a microservice architecture (Java + Python NLP)
- Python service processes and summarizes PDFs
- Spring Boot API exposes summarized content via REST endpoints
- Reduced reading time significantly for long academic documents
🔐 OTP Microservice
- Built customizable OTP system (numeric, alphabetic, alphanumeric)
- Implemented expiry validation & scheduled cleanup
- Used
@RestControllerAdvicefor robust error handling
🧠 Problem Solving
- 🏆 LeetCode Rating: 1700+
- 📈 Problems Solved: 500+
- ⭐ CodeChef: 2★ (1400+)
🔗 https://leetcode.com/u/junnu15/
📊 GitHub Stats
📈 Contribution Graph
☁️ Cloud & Tools
- Google Cloud Platform (Cloud Run, Storage, IAM)
- Git, GitHub, Maven, Postman