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Backend EngineeringBeginner → Senior

.NET & C# Development

Full C# and .NET path: language foundations, quality code, all GoF design patterns, then build the OrderFlow API with DI, EF Core, JWT, CQRS, Redis, SignalR, Polly, OpenTelemetry, and Docker.

4.9rating1,892 students75h total229 lessons
72 Hands-on Labs 3 Challenges 8 Projects
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What you'll learn

Master C# from syntax through async, nullability, multithreading, and source generators
Write testable, clean, SOLID code with xUnit, TDD, integration tests, and refactoring discipline
Apply all major GoF design patterns in real C# — creational, structural, and behavioral
Wire up DI correctly — service lifetimes, keyed services, Scrutor — and never see a scoped-in-singleton bug again
Build production REST APIs with Minimal API, ProblemDetails, global exception handling, and versioning
Deep-dive EF Core: relationships, concurrency, interceptors, compiled queries, and N+1 killers
Ship JWT auth with refresh tokens, policy-based authorization, rate limiting, and OAuth 2.0
Apply Clean Architecture, CQRS, Domain Events, Outbox Pattern, and Vertical Slice Architecture
Cache with Redis, Output Cache, and HybridCache — cut DB load by 80%
Write resilient HTTP clients with IHttpClientFactory, Refit, and Polly circuit breakers
Schedule background jobs with Quartz.NET and Hangfire, monitor them on a live dashboard
Observe your API end-to-end: OpenTelemetry, Serilog, Seq, Prometheus, and Grafana
Ship with Docker, GitHub Actions CI/CD, and a YARP gateway in front

Final Project

A fully deployed OrderFlow API — orders, products, real-time updates, full observability stack, and automated CI/CD pipeline

Curriculum

229 lessons · 75h
1

Getting Started with C# — Syntax, Types & Control Flow

45 min
2

C# 12 Crash Course — Everything You Actually Need

40 min
3

C# Syntax Explained — Complete Beginner Reference

35 min
4

OOP in C# — Classes, Inheritance, Interfaces & Records

35 min
5

LINQ — Query Collections Like a Pro

30 min
6

Async/Await — Non-Blocking I/O Without Deadlocks

35 min
7

Working with Null in C# — Nullable Reference Types

30 min
8

Deep Dive: Multithreading & Parallelism in C#

40 min
9

Deep Dive: Advanced C# — Generics, Delegates & Events

45 min
10

Pattern Matching in C# — Switch Expressions, Property, List & Positional Patterns

40 min
11

Span<T> and Memory<T> — Zero-Copy Slicing and High-Performance Buffers

45 min
12

System.Threading.Channels — Producer-Consumer with Backpressure

35 min
13

Setting Up Your Machine for .NET — Windows, macOS & Linux

25 min
14

What's New in C# 14 — Features & Examples

30 min
15

Source Generators in C# — Code That Writes Code

35 min
16

Build & Consume MCP Servers in .NET

Lab
35 min
17

Getting Started with OpenAI Codex

25 min

Course Info

Lessons229 lessons
Total time75h
LevelBeginner → Senior
Students1,892
Rating4.9 / 5.0
Start Course — Free