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yourxharsh19/README.md

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⚡ Senior-Minded Backend Engineer & Full Stack Developer building high-throughput, fault-tolerant applications.

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🔮 About Me

Hello! I'm Harshdeep Singh, a passionate Computer Science Undergraduate with a primary focus on Backend Engineering and Full Stack Development. I specialize in designing distributed architectures, robust microservices, and high-performance REST APIs.

  • 🎓 Education: B.Tech in Computer Science & Engineering (GPA: 8.0/10.0)
  • ⚙️ Core Expertise: Java, Spring Boot Microservices, System Design, & Distributed Systems
  • 🌐 RESTful APIs: Designing secure, well-documented, and production-ready APIs
  • 💡 Problem Solving: Daily practitioner of Data Structures & Algorithms (300+ LeetCode Solved)
  • 🚀 Mission: Building scalable, resilient, and enterprise-grade applications
 Coding GIF


🎯 Current Focus

✔ Building scalable Spring Boot Microservices with event-driven architecture & API gateways

✔ Learning Distributed Systems, message queues (Kafka/RabbitMQ), and distributed caching (Redis)

✔ Solving LeetCode daily to sharpen data structures & algorithms (1706 Peak Rating)

✔ Improving System Design principles (Scalability, Availability, Consistency & CAP Theorem)

✔ Open Source Contributions across Java and modern Web Development ecosystems


🛠️ Tech Stack

Tech Icons



💻 Languages

⚙️ Backend

🎨 Frontend

🗄️ Database

🚀 DevOps & Tools


🚀 Featured Projects

🛒 SwiftCart  Microservices E-Commerce Platform

A robust, enterprise-ready microservices e-commerce system featuring 5+ independently deployable services (Authentication, Product Catalogue, Cart, Order Processing, Payment Gateway, and Inventory Management). Built with indexed PostgreSQL schemas achieving ~40% faster query execution and containerized via Docker.

GitHub Repo   Live Demo

💰 UPIQ  Smart Expense Manager

A production-deployed personal finance and expense tracking platform serving 100+ active users. Features automated PDF statement parsing using Apache PDFBox, rule-based category tagging with 100% precision on Google Pay & bank exports, and real-time financial analytics dashboards.

GitHub Repo   Live Demo

🤖 Smart API Debugger  AI-Assisted Debugging Tool

An intelligent developer assistance system that analyzes raw REST API error payloads and stack traces, leveraging Large Language Models (LLM Integration) to deliver instant, plain-English root cause diagnostics and actionable fix suggestions.

GitHub Repo   Live Demo



🏆 Achievements & Milestones


🏆 300+ LeetCode
1706 Peak Rating
⭐ CodeChef 2-Star
Competitive Coding
🚀 Full Stack Apps
Multiple Production Builds
📚 System Design
Architecture Enthusiast
☕ Java Developer
Spring Boot Specialist


📊 GitHub Analytics

GitHub Stats Streak Stats
Top Languages

🏆 GitHub Trophies

Trophies

📈 Activity Graph

Activity Graph


🐍 Contribution Grid Snake

Contribution Snake


💬 Dev Thought of the Day

Dev Quote


🤝 Let's Connect & Collaborate

I'm always open to discussing backend architecture, system design challenges, open-source collaborations, or exciting software engineering opportunities!

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  1. UPIQ-PROD UPIQ-PROD Public

    UPIQ is a production-ready monolithic personal finance tracker built with Spring Boot that parses bank PDFs into structured transactions, categorizes spending, and provides real-time financial insi…

    JavaScript 2