H. Brian Valentine (born November 28, 1959 in Centralia, Washington) is the Senior Vice President, Ecommerce Platform at Previously he was a senior vice president of the Windows Core Operating System Division (COSD) at Microsoft where he was responsible for overseeing the development of core Windows technologies such as networking and the kernel. He was also the executive primarily responsible for the development of Windows 2000 and Windows XP, and he held the same role for the majority of Windows Vista's development cycle.

On August 1, 2006, Microsoft announced that Valentine would leave his post as head of COSD and pursue other opportunities within the company after the release of Vista, expected to happen in November 2006. Jon DeVaan, senior vice president of Engineering Excellence, would join the Platform division and eventually replace Valentine. On September 1, 2006, this transition was accelerated when Valentine left Microsoft to take a position at[1]

Valentine holds a B.S. in computer science from Eastern Washington University.[2]


  1. Benjamin Romano (September 5, 2006). "Microsoft veteran Valentine moving to Amazon". Seattle Times. Retrieved 2006-09-05. 
  2. Brian Valentine's Bio - Investor Relations

External links


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