.NET backend developer
Progress from C# values to async APIs and concurrency control.
Your goal
Validate and test an API, then bound asynchronous work.
Use each checkpoint as evidence: solve an exercise without the solution open, explain its edge cases, and revisit a failed concept the next day. Course completion records practice; it is not an accredited qualification.
C# · From expressions to async programs
Six guided lessons from language fundamentals to a tested program. Read the example, run it in the stated environment, then complete the extension checklist.
6 lessons · 170 minutes of guided material, plus project and revision time.
Open syllabus →ASP.NET Core · Build a working foundation
Six sequenced labs covering the framework’s core workflow, input boundaries, failure handling and a practical extension. Each includes code, expected behavior and a review checklist.
6 lessons · 195 minutes of guided material, plus project and revision time.
Open syllabus →C# · Bound asynchronous work and propagate cancellation
Bound concurrency independently from the size of the input.
1 lessons · 45 minutes of guided material, plus project and revision time.
Open syllabus →ASP.NET Core · Detect conflicting edits with a version token
A read-modify-write operation needs a conflict policy.
1 lessons · 50 minutes of guided material, plus project and revision time.
Open syllabus →Final review
- Demonstrate a working example and a deliberately failing case.
- Explain one design trade-off and the expected time and memory costs.
- State which checks ran automatically and which required manual review.
- Keep a short project README with setup steps, limitations and your next improvement.
Open your personal study plan to review weak concepts and schedule the next session.