Finance? No, most of it was rewritten in the 2000s to Java or DotNet. Sure, a bunch of HNers will reply here that they work on high frequency market making sy

Finance? No, most of it was rewritten in the 2000s to Java or DotNet. Sure, a bunch of HNers will reply here that they work on high frequency market making systems that use C++, but they are an extreme minority in the industry at this point.