Yee Lee – How Facebook Ships Code:

"very engineering driven culture.  ”product managers are essentially useless here.” is a quote from an engineer.  engineers can modify specs mid-process, re-order work projects, and inject new feature ideas anytime.

[…] they really want engineers to publicly own products and be the main point of contact for the things they built.

[…] Engineers handle entire feature themselves — front end javascript, backend database code, and everything in between.  If they want help from a Designer (there are a limited staff of dedicated designers available), they need to get a Designer interested enough in their project to take it on."