What should a C# Full Stack Developer learn beyond C# and ASP.NET Core to become an enterprise-ready developer?
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Knowing C# and ASP.NET Core is a strong foundation, but enterprise development requires understanding the complete application lifecycle.
A developer should add:
Frontend: JavaScript/TypeScript, HTML/CSS and a modern framework such as React or Angular.
Data: SQL, database design, indexing, transactions and Entity Framework Core.
Architecture: REST APIs, authentication, authorization, caching, messaging, dependency injection and distributed systems.
Cloud: Azure services, Managed Identity, Key Vault, storage and monitoring.
Engineering: Git, CI/CD, unit/integration testing, Docker, logging and observability.
The important transition is from:
"I can build an API."
to:
"I can design, secure, test, deploy, monitor and maintain an enterprise application."
A strong portfolio project should therefore include frontend + API + database + authentication + automated testing + Docker + Azure deployment + CI/CD.