James McNellis is a Principal Software Engineer at Microsoft where he works on the Time Travel Debugging (TTD) reverse debugging toolkit. Prior to joining the Windows Debuggers team in 2016, he worked on the Visual C++ team and was responsible for the Microsoft C Runtime (CRT) and C Standard Library implementation. Passionate about all things related to C++, he is a frequent speaker at C++ conferences around the world and is a former top contributor on StackOverflow.