Julio Casal is a US software engineer and one of the more active independent .NET / C# educators publishing course material on the modern .NET stack. His courses focus on the production-engineering side of .NET microservices and the cloud-native patterns that show up in real .NET applications running on Azure and AWS.
The course catalog covers ASP.NET Core, .NET microservices with Docker and Kubernetes, Azure cloud deployment patterns, the testing tracks, and the broader cloud-native .NET work that separates Julio's material from generic .NET tutorial content. Course material is taught at the level of a working senior .NET engineer.
The CourseFlix listing under this source carries 9 Julio Casal courses spanning that range. Material is paid and aimed at intermediate-and-up .NET developers building production microservices and cloud-native applications.