Actually it was only previewed in 2000, the beta was in 2001, and the release was in 2002 (with Visual Studio 2002).Plane Sailing said:C# was first released in 2000, so I doubt anyone could have 10 years experience in c# development...
Maybe they've tailored the ad for Anders Hejlsberg. He would probably be the only one with 10 years C# experience. I doubt they can match his current salary, though.
