Guided course · Architecture and Design in .NET

System Design for .NET Developers: An Interview Guide

System design interview preparation for .NET developers: a repeatable interview method, back-of-the-envelope estimation, the request path through DNS, CDN, load balancers and YARP gateways, choosing a data store and indexes with EF Core, replication and consistency models, sharding and consistent hashing, caching with HybridCache and Redis, message queues and Azure Service Bus sessions, idempotency keys and the transactional outbox, background jobs, leases and fencing tokens, timeouts, retries and circuit breakers with Microsoft.Extensions.Http.Resilience, API design with pagination, versioning and gRPC, rate limiting and multi-tenancy in ASP.NET Core, observability, SLOs and cost, and a full order-placement design walkthrough. Every C# example was compiled and run with captured output. 20 lessons including four module practice tests and a 25-question mock interview.