Backend Developer with hands-on experience building scalable systems using Java, Spring Boot, Redis, Kafka, and PostgreSQL. Active open-source contributor with 29+ merged PRs to production codebases (Checkstyle, Apache Pulsar). Strong problem-solver with 330+ competitive programming solutions across Codeforces and LeetCode.

• 🎓 B.Tech in Computer Science — College of Engineering Roorkee (2025)
• 🔥 Passionate about Microservices, System Design, Cloud, and Clean Code
• 🏆 Smart India Hackathon 2023 — Top 16 Finalist
• 📫 Reach me at praveen729483@gmail.com

Languages

Backend & Frameworks

Databases

DevOps & Testing

Redis-based social media virality simulation with bot guardrails and a real-time notification engine

• Built a stateless backend with Redis as real-time processor and PostgreSQL as source of truth, containerized via Docker
• Used Redis atomic operations (INCR, SETNX) to handle concurrency and prevent race conditions under 200+ concurrent requests with a strict 100-comment bot cap
• Developed a notification engine with throttling and batching via Redis lists and Spring Scheduler to prevent spam at high frequency

Microservices-based patient records system with event-driven architecture

• Architected a microservices system handling 1,000+ patient records with PostgreSQL optimization and JPA tuning
• Implemented gRPC inter-service communication to reduce API latency; built Kafka event-driven architecture for async processing
• Developed an API Gateway for centralized routing and auth; containerized with Docker and AWS LocalStack; achieved coverage with JUnit

Web-based control panel for Minecraft server lifecycle management

• Built REST APIs for server lifecycle management serving 10+ concurrent users with real-time monitoring via WebSockets
• Integrated Remote.it for secure remote access; containerized with Docker reducing deployment time significantly

Java code quality tool used by 10,000+ developers worldwide

• Contributed 29+ merged PRs to the production codebase
• Resolved a critical 5-year-old indentation bug using ANTLR4 and AST analysis
• Fixed i18n bugs and improved documentation quality

🔗 View all merged PRs

Distributed messaging platform used by major tech companies

• Applied Checkstyle standards to 1,000+ test files, reducing code violations by 98%
• Improved maintainability for enterprise users of the platform

🔗 View all merged PRs

I'm actively seeking Backend Developer or Software Engineer roles. If you have an opportunity or just want to connect — I'd love to hear from you!

⭐ If any of my projects or contributions were helpful, a star goes a long way!