"AppBeat is uptime, service health and performance monitoring SaaS solution built from beginning on .NET Core. It has three main components: -frontend: .NET Core MVC + TypeScript Single-Page Application (SPA) -monitoring agents: microservice architecture running on .NET Core -backend logic (cluster, orchestrator, scheduler, ...): .NET Standard app running currently on top of .NET Framework as Windows Service Frontend and agents are running on Linux, while backed is currently on Windows. One of main design goals was high availability of service so every component in our system is running on multiple distributed servers on different locations. For database we mainly use Azure SQL which is running in high-availability mode (live replication to data center running in different region). To access data we mainly use Entity Framework Core but we also have some native SQL queries and stored procedures where we need maximum efficiency. This is quick overview of our architecture and for now we are very satisfied with results: very fast and reliable solution. Thumbs up for .NET Core!"