I applied through an employee referral. The process took 2 months. I interviewed at Red Hat (Raleigh, NC)
Interview
Behavioral based. Focus on job skills and problem solving will vary. Heavy focus on culture fit, which will also vary by department. Some are very well trained and follow the standard interview process. Some do not. Expect at least several interviews from calls with recruiter to several group and or individual interviews. May take some time. Be patient through-out the process.
Interview questions [1]
Question 1
They will ask about past experiences related to job requirements, problem solving scenarios, what you know about open source and the company history, and various scenarios where you demonstrate resolution of conflict, worked through job related challenges, etc. Be honest and transparent.