Author of the Pro .NET Memory Management book. Programming for over a dozen years, solving performance problems and architectural puzzles in the .NET world, speeding up web applications. Independent consultant, blogger, speaker and fan of Twitter. He also shares his passion as a trainer in the area of .NET, especially about application performance and diagnostics. Microsoft MVP in the Visual Studio and Development Tools category. Co-founder of Dotnetos initiative producing world-class on-line courses about .NET.