I am probably one of the very few who prefers whiteboard problems compared to knowledge based problems. In my career spanking over 12 years, I have worked on AS

I am probably one of the very few who prefers whiteboard problems compared to knowledge based problems. In my career spanking over 12 years, I have worked on ASP.NET, Silverlight, Blackberry, Android, Node.js, HTML/js/css, Xamarin, .NET Core, Code generation, Java microservices , Native Windows and AWS services. The result of working on so many things is that I am not an expert in any of those topics. While I do well in generic system design interviews, I lack depth in literally every single thing that I have worked on. So inspite of having more than a decade of experience, I don't satisfy the criteria for companies who ask for 'x' years of experience in 'y'. So whiteboard and algorithm problems work well for me, because there's not really much to learn and memorize in those topics.