👋 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 @RestControllerAdvice for 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

📫 Connect with Me

• LinkedIn: https://www.linkedin.com/in/pinjarijunaid