It was a phone interview with a panel of 4 higher level management people that went about 45 minutes (1 hour time slot). 1 hr and 3 different software/aeronautics leads. It felt pretty informal, let me introduce myself and go over a bit of my school experience/resume. Whoever felt like asking for further details did, mostly behavioral and a bit of technical. Described how I'd be put on a project. Let me ask my own questions towards the end. Told me to expect an update in 2-3 weeks about any offers.