I'm a passionate backend developer specializing in building scalable, distributed systems using modern technologies. I love solving complex problems and implementing enterprise-grade solutions with clean architecture.

• 🏗️ Design and build microservices architectures with Spring Boot
• 🔄 Implement event-driven systems using Apache Kafka
• 📊 Create observability solutions with ELK Stack, Prometheus, and Grafana
• 🛡️ Develop secure APIs with JWT authentication and rate limiting
• 🎯 Apply design patterns and best practices for maintainable code

Enterprise-grade microservices platform with complete observability

• 🎯 5 Microservices: Order, Payment, Inventory, Notification, API Gateway
• 🔄 Saga Pattern: Choreography-based distributed transactions with compensating transactions
• 💳 Payment Processing: Mock payment service with 80/20 success/failure simulation
• 🔙 Order Cancellation: Full rollback with payment refund and inventory restoration
• 📊 Full Observability: ELK Stack, Zipkin, Prometheus, Grafana
• 🔐 Security: JWT authentication, rate limiting with Redis
• 📚 API Documentation: Centralized Swagger UI

Tech: Spring Boot, Kafka, PostgreSQL, Redis, Docker, ELK Stack

Modern task management system with real-time collaboration

• ⚡ Real-time Updates: WebSocket integration for live task updates
• 🔐 JWT Authentication: Secure user authentication and authorization
• 💬 Comments System: Collaborative task discussions
• 📊 Project Management: Organize tasks by projects with priorities
• 🎨 Modern UI: Clean, responsive interface with vanilla JavaScript

Tech: Spring Boot, WebSocket, JWT, PostgreSQL, Vanilla JS

E-commerce backend demonstrating advanced system design concepts

• 🎨 Design Patterns: Strategy, Factory, Observer, Builder patterns
• 🔒 Concurrency: Optimistic locking for inventory management
• ⚡ Performance: Caching strategies and query optimization
• 📝 Documentation: Extensive Javadocs explaining design decisions
• 🧪 Testing: Comprehensive unit and integration tests

Tech: Spring Boot, H2 Database, Design Patterns, Clean Architecture

Secure banking application with modern UI

• 💰 Core Banking: Account management, transactions, transfers
• 🔐 Security: Multi-layer authentication and authorization
• 📱 Responsive Design: Mobile-first approach
• 🎯 Clean Architecture: Separation of concerns with layered design

Tech: Spring Boot, Spring Security, PostgreSQL, Modern CSS

Architecture:
  - Microservices Architecture
  - Event-Driven Architecture
  - Domain-Driven Design (DDD)
  - CQRS Pattern
  - Saga Pattern (Choreography & Orchestration)

Backend Development:
  - RESTful API Design
  - Spring Boot Ecosystem
  - JPA/Hibernate
  - Apache Kafka
  - WebSocket

DevOps & Infrastructure:
  - Docker & Docker Compose
  - CI/CD Pipelines
  - Infrastructure as Code
  - Container Orchestration

Observability:
  - Distributed Tracing (Zipkin)
  - Metrics (Prometheus)
  - Logging (ELK Stack)
  - Monitoring Dashboards (Grafana)

Best Practices:
  - Clean Code Principles
  - SOLID Principles
  - Test-Driven Development
  - Code Reviews
  - Documentation

• 🔧 Advanced Kubernetes patterns and operators
• 🚀 gRPC and Protocol Buffers
• 📊 Advanced data streaming with Kafka Streams
• ☁️ Cloud-native architectures (AWS/GCP)

I'm well-versed in discussing:

• ✅ Microservices architecture and trade-offs
• ✅ Distributed transactions and Saga pattern
• ✅ Event-driven systems and eventual consistency
• ✅ API design and versioning strategies
• ✅ Database optimization and scaling
• ✅ System design and scalability patterns
• ✅ Security best practices
• ✅ Observability and monitoring strategies

I'm always open to interesting conversations and collaboration opportunities!

• 💼 LinkedIn: Connect with me
• 📧 Email: [email protected]
• 🐦 Twitter: @your_handle
• 💬 Discord: your_discord_handle