In 1996, Hejlsberg left Borland and joined Microsoft. One of his first achievements was the J++ programming language and the Windows Foundation Classes; [...] S

In 1996, Hejlsberg left Borland and joined Microsoft. One of his first achievements was the J++ programming language and the Windows Foundation Classes; [...] Since 2000, he has been the lead architect of the team developing the language C#. In 2012 Hejlsberg announced his new project TypeScript—a superset of JavaScript. -- https://en.wikipedia.org/wiki/Anders_Hejlsberg https://en.wikipedia.org/wiki/Anders_Hejlsberg For better or worse, he influences with his C# syntax ideology now TypeScript and indirectly JS/ES6.