In the Valley, very unlikely. I don't have any factual statistics to throw at you but in all the years I've lived here, from purely personal observation and int

In the Valley, very unlikely. I don't have any factual statistics to throw at you but in all the years I've lived here, from purely personal observation and interactions, with exception to employees of the local Microsoft division here, I have yet to run into anyone using .NET at all. Everyone is mostly a Java, Python, Ruby, or a PHP shop. However, you might have better luck in the Seattle area as that is where Microsoft is headquartered (Redmond actually which is close to Seattle) and more likely the startups around there maybe more influenced in .NET usage.