35 Senior .NET Developer Interview Questions That Actually Get Asked in 2026
35 senior .NET interview questions with great answers, red flags, and follow-ups. GC, thread pool starvation, production diagnostics - updated for .NET 10.
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35 senior .NET interview questions with great answers, red flags, and follow-ups. GC, thread pool starvation, production diagnostics - updated for .NET 10.
30 real ASP.NET Core internals interview questions with great answers, red flags, and follow-ups. Middleware, DI, hosting, configuration - updated for .NET 10.
30 real LINQ interview questions with great answers, red flags, and follow-ups. Deferred execution, IQueryable, expression trees, and the .NET 9/10 operators.
Real .NET interview questions with great answers, red flags, and follow-ups. C#, EF Core, ASP.NET Core, system design - updated for .NET 10 and C# 14.
30 real EF Core interview questions with great answers, red flags, and follow-ups. N+1, change tracking, migrations, concurrency - updated for EF Core 10.
Build permission-based authorization in ASP.NET Core .NET 10 - a dynamic policy provider, runtime-managed role permissions, and what token-bound permissions really cost.
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Teach Claude Code your conventions once. Build a custom skill that scaffolds a full vertical slice in .NET 10 - endpoint, handler, validator, EF config, and test - your way.
Turn Claude Code into a senior engineer that knows your codebase. The perfect CLAUDE.md for .NET - memory hierarchy, AGENTS.md interop, and copy-paste templates.
Add health checks to ASP.NET Core on .NET 10: database, Redis and custom checks, liveness vs readiness probes, probe cost, graceful drain, and Kubernetes wiring.
Add second-level caching to EF Core 10 with EFCoreSecondLevelCacheInterceptor, Redis, and HybridCache - with real benchmarks and the invalidation gotchas.
Step-by-step guide to deploy a .NET 10 Web API and React apps to a DigitalOcean droplet with Dokploy: managed Postgres, Valkey cache, Cloudflare R2, and SSL.