I am a software architect and developer with 15+ years of experience. I have spent most of my career on the Microsoft .NET platform building APIs and integrations.
On a day-to-day basis I write most of my code in C#, although I prefer and have done quite a bit of professional work in F# as well.
I often do teaching and mentoring, and occasionally give talks on Cloud Architecture, DevOps, or F# (example from F# eXchange 2019 in London: How F# helped us build a more robust application).