Microservices & REST APIs

End-to-end service design -- from data modeling to API endpoints to scalability considerations. These are the kinds of systems that back real products.

• Comments API -- Threaded comments with parent-child sorting
• Employees API -- Employee management with relationship tracking
• Data Ingestion & Processor -- XML-to-JSON pipeline with scheduled ingestion and REST API
• Event/Message Processor -- High-throughput message system with queue-based decoupling
• Railway Routing -- Cost-optimized route calculation
• Restaurant Management -- Full CRUD system for restaurant operations