This job posting is seeking a senior C++ and .NET developer to monitor the performance of .NET solutions using C++ hooks and code injection. The ideal candidate has a solid understanding of how the .NET CLR works and how .NET versions from 2.0 to 4.5 execute differently at the web server level. As well as senior skills in both C++ and .NET. Responsibilities include staying up to date on web and application server advances, writing low-level C++ code to collect performance data from .NET applications, and ensuring code is small, optimized and follows proper engineering practices.