A fully distributed, containerized ecommerce backend system designed for high scalability and fault tolerance using .NET 8/9 and a Database-per-Service approach.Key Features:Catalog Service: Managed product and category data with optimized querying.Basket Service: Integrated Redis Cache for ultra-fast session and shopping cart management (Response time $< 50\text{ms}$).Ordering Service: Built using Clean Architecture and CQRS (MediatR) for decoupled, event-driven order processing.DevOps & Containerization: Packaged all services into Docker containers and managed the multi-container environment seamlessly via Docker-Compose.Tech Stack: C#, .NET 8/9, Docker, Docker-Compose, Redis, EF Core, CQRS, MediatR, SQL Server/PostgreSQL.