I'm a Java Backend Developer passionate about designing scalable, production-quality backend systems.
My primary focus is building high-performance applications using Java, Spring Boot, Spring Security, Kafka, MySQL, PostgreSQL, Docker, and modern backend engineering practices.
I enjoy solving complex backend problems involving authentication, distributed systems, event-driven architecture, payment workflows, concurrency, and clean software architecture.
- Java 21
- SQL
- JavaScript
- TypeScript
- Spring Boot
- Spring Security
- Spring MVC
- Spring Data JPA
- Hibernate
- REST APIs
- JWT Authentication
- Bean Validation
- MapStruct
- Flyway
- Spring Cloud
- Kafka
- MySQL
- PostgreSQL
- MongoDB
- Redis
- Docker
- Git
- GitHub
- Maven
- IntelliJ IDEA
- Postman
- Render
A modular e-commerce backend inspired by modern commerce platforms.
- JWT Authentication
- Refresh Tokens
- Role & Permission Based Authorization
- Product Catalog
- Category Management
- Inventory Management
- Shopping Cart
- Order Processing
- Payment Integration
- Event-Driven Notifications
- Flyway Database Versioning
- Global Exception Handling
- DTO Mapping using MapStruct
- Clean Layered Architecture
- Business Validation Layer
Tech Stack
Java • Spring Boot • Spring Security • Hibernate • MySQL • Flyway • JWT • Docker
Microservices-based fraud detection platform capable of processing financial transactions in real time.
- Event-Driven Architecture
- Kafka Messaging
- API Gateway
- Independent Microservices
- Asynchronous Processing
- Dockerized Services
- PostgreSQL
Tech Stack
Java • Spring Boot • Kafka • Docker • PostgreSQL
A Java application demonstrating JVM internals through practical examples.
- Heap Memory Analysis
- Stack Memory
- String Pool
- Garbage Collection
- Runtime Memory Statistics
- StackOverflowError Simulation
- OutOfMemoryError Demonstration
A production-inspired concurrent processing framework demonstrating modern Java concurrency.
- ThreadPoolExecutor
- Producer-Consumer Pattern
- BlockingQueue
- Retry Mechanism
- Thread-safe Processing
- Runtime Monitoring
- Configurable Workers
I focus on building software using:
- Clean Architecture
- SOLID Principles
- Object-Oriented Design
- Domain-Driven Design (DDD)
- RESTful API Design
- Event-Driven Architecture
- Layered Architecture
- Secure Authentication & Authorization
- Production-Ready Code
- Scalable Backend Design
- Advanced Spring Boot
- Distributed Systems
- System Design
- Cloud-Native Applications
- Kubernetes
- DevOps
- AI-Powered Backend Systems
This GitHub is dedicated to building production-quality software while continuously improving backend engineering skills.
Projects emphasize:
- Scalability
- Maintainability
- Performance
- Security
- Clean Code
- Best Practices
- Real-World Architecture
ravindrabijarniya123@gmail.com
https://linkedin.com/in/ravindrabijarniya
🌐 GitHub
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