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Premium .NET courses by Anton Martyniuk — Software Architect, Microsoft MVP.

The .NET Senior Playbook
Fast-track to senior, keep growing as a senior, and beat any .NET interview.
- Covers C#, .NET, ASP.NET Core, EF Core & System Design
- A test after every chapter
Join the waitlist
The System Design
Playbook
The System Design Playbook
Knowing the components is not the same as designing a system.
A repeatable method for the trade-offs every system makes — plus worked designs you build yourself and timed mock interviews with scoring rubrics. Join the waitlist to hear the moment it goes live.

Free .NET Interview Test
Take a free, adaptive .NET interview test across C#, ASP.NET Core, EF Core, SOLID, Design Patterns & System Design — find your developer level and get a personalized strengths-and-gaps report.
10-day email course
Claude Code
for .NET Developers
Claude Code for .NET Developers
A free 10-day email course on using Claude Code for real production work — the plan-file workflow, CLAUDE.md and skills, context management, models and effort, plan mode, subagents, MCP servers, hooks, and headless CI.