Jeff Dean builds his code before committing it, but only to check for compiler and linker bugs.

When Jeff Dean has an ergonomic evaluation, it is for the protection of his keyboard.

All pointers point to Jeff Dean.

http://research.google.com/people/jeff/index.html

As a stopgap measure, check the Paul Graham "facts" ( http://news.ycombinator.com/item?id=60357 ) and the Bruce Schneier "facts" ( http://geekz.co.uk/schneierfacts/ ).