I applied through an employee referral. The process took 1 week. I interviewed at E3 Global (Houston, TX) in May 2015
Interview
Very succinct specification of your duties. They ask very deep technical questions and review your technical skills. They do have a long interview process (4 rounds for me) but they specify the dates 1 week prior to your interview.
Interview questions [1]
Question 1
How do you configure the flow limit parameter of a particular service? For Ex: A REST JSON service?