What a Mid-level } should know

Configures StyleCop, SonarAnalyzer for static analysis. Uses Roslyn analyzers and code fixes. Applies code metrics (cyclomatic complexity, coupling). Writes self-documenting code with XML comments.

Manages memory through Span<T>, Memory<T>, ArrayPool<T>. Analyzes GC pressure through dotnet-counters. Optimizes struct vs class selection for hot paths. Uses WeakReference for cache patterns.

Implements concurrent operations through Task Parallel Library (TPL). Uses CancellationToken for operation cancellation. Applies SemaphoreSlim, lock, ReaderWriterLockSlim for synchronization. Works with Channels.

Structures tests by modules. Uses Moq/NSubstitute for dependency mocking. Introduces code coverage through coverlet. Applies FluentAssertions for readable assertions.

Conducts code review for C#/.NET desktop code. Checks async/await correctness, MVVM adherence, memory management. Provides constructive feedback. Reviews XAML.

Applies Git rebase, cherry-pick, bisect. Configures Git hooks with dotnet-format pre-commit. Works with Git submodules for shared libraries. Resolves merge conflicts in .csproj and XAML.

Applies MVVM with ObservableValidator for validation. Uses IMessenger (WeakReferenceMessenger) for inter-ViewModel communication. Organizes navigation through INavigationService. Implements async commands.

Independently develops WPF/WinUI applications with MVVM through CommunityToolkit.Mvvm. Creates custom UserControl and ControlTemplate. Works with DataTemplate, IValueConverter. Uses Navigation through Frame.