Elias Bachaalany is a known developer and reverse engineer who is currently working at Microsoft. Before joining Microsoft, Elias worked as a programmer at Hex-Rays.
He was behind various IDA Pro features, specifically the Bochs and WinDbg debugger modules and IDAPython.
He designed and implemented many free and open source scripts and plugins for IDA Pro.
http://recon.cx/2012/schedule/speakers/84.en.html
http://hexblog.com/elias.html