⚙️ Backend & Frameworks
C# / .NET / .NET AspireASP.NET Core & MVCDependency InjectionREST APIs / CRUDSignalR (WebSockets)Background Processing (Cron)
🏗️ Architecture & Design
Clean ArchitectureS.O.L.I.D. PrinciplesMicroservicesEvent-Driven ArchitectureAdvanced API DesignCQRS & Idempotency
🛡️ Security & Identity
Passwordless Auth (FIDO2)Identity Federation (OAuth2/JWT)Custom ASP.NET IdentityZero Trust API SecurityDDoS Prevention
🗄️ Database & Cloud
MSSQL / MySQL / SQLiteEntity Framework CoreUnit of Work & RepositoryDistributed Caching (Redis)Cloud Storage APIsAzure DevOps
💻 Frontend & Web
Blazor (WASM & Server)JavaScript (ES6+) / TypeScriptVue.jsHTML5 / CSS3 / Bootstrap
🚀 DevOps & Testing
Docker & SwarmKubernetesGit / GitHub / GitFlowCI/CD & DevSecOpsUnit Testing (xUnit + Moq)Visual Studio