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surendar029/README.md
Hi, I'm Surendar 

Backend Developer focused on building scalable APIs and microservices using Java & Spring Boot.

 Connect With Me
- Portfolio: https://surendar-dev.vercel.app
- LinkedIn: https://www.linkedin.com/in/surendar-uthaminathan
- Email: surendaruthaminathan@gmail.com

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  1. Rate-Limiter Rate-Limiter Public

    Thread-safe Rate Limiter in Java with five algorithms — Token Bucket, Leaky Bucket, Fixed Window, Sliding Window Log, and Sliding Window Counter. Factory pattern for algorithm selection, Strategy p…

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  2. URL-Shortener URL-Shortener Public

    A high-performance URL shortener built with Java 17 and Spring Boot, Redis, and JWT security. Supports custom aliases, automated link expiration, and click analytics, with Bucket4j rate limiting an…

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  3. Parking-Lot Parking-Lot Public

    Thread-safe Parking Lot System in Java using Singleton with double-checked locking, Strategy pattern for fee and payment logic, and Factory pattern for vehicle creation. AtomicBoolean and synchroni…

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  4. E-Commerce E-Commerce Public

    An event-driven, production-grade E-Commerce microservices architecture built with Java 21, Spring Boot, Apache Kafka, Redis, and Elasticsearch. Designed for high scalability, fault tolerance, and …

    Java