A member of the Amazon Web Services team. Specializes in infrastructure efficiency, reliability and scaling. Prior to joining Amazon.com, James was Microsoft Data Center Futures Architect. He has spent more than 20 years working on high-scale services, database management systems, and compilers.
From his Linkedin :
VP & Distinguished Engineer
Amazon.com
December 2008 – Present (6 years 11 months)
A member of the Amazon Web Services team. Specializes in infrastructure efficiency, reliability and scaling. Prior to joining Amazon.com, James was Microsoft Data Center Futures Architect. He has spent more than 20 years working on high-scale services, database management systems, and compilers.
And a couple of biographies :
http://highscalability.com/blog/2015/1/12/the-stunning-scale...
http://www.wired.com/2013/02/james-hamilton-amazon/