Techno Webdev

C# and .NET Development · Live cohort + async labs

C# Language Core for Production Services

This track grounds you in modern C# with a bias toward maintainable services. You will refactor sample APIs, trace exceptions with structured logging, and align naming with conventions common in Japanese product teams. Weekly mentor reviews focus on readability and test seams rather than clever one-liners.

JPY 98,000 — informational only

6 weeks · 72 hours · Beginner · Language: English · Certificate included

Visual treatment for C# Language Core for Production Services

What ships in the syllabus

  • Project-based modules with Git history you can show employers
  • Async/await labs with cancellation tokens and bounded parallelism
  • Nullable reference types applied to domain models
  • Analyzer-friendly style rules and editorconfig templates
  • Packaging small libraries for internal NuGet feeds
  • Diagnostics hooks you can reuse in ASP.NET Core projects
  • Pairing sessions on code review etiquette in bilingual teams

Outcomes we assess

  1. Ship a console-hosted worker that processes queued jobs safely
  2. Explain trade-offs between classes, records, and structs for DTOs
  3. Document a small public API surface with XML comments

Lead mentor

Avatar for Haruki Sato

Haruki Sato

Former platform engineer at a Tokyo fintech; coaches C# readability for mixed JP/EN teams.

Participant voices

The module on nullable reference types finally made our internal DTO layer consistent. I still open week 2 sample for guard clauses.

— Mina · Support engineer · 5/5 · survey

Pair review on my async worker caught a deadlock I would have shipped. Clear tone, dense but fair.

— Leo · Osaka SaaS studio

FAQ for this track

Yes, at least one language with classes and interfaces helps. If you are brand new to programming, start with our fundamentals office hours first.