1 phone screening, 1 one on one interview with an engineer, and 1 four person panel interview with senior engineers and managers. Asked to root cause thermal system failure, asked what I would do to ensure I could consistently cut a steel beam (equipment validation), asked to root cause a motor driven system performing out of spec, and a few abstract brain teasers to put you under pressure and see how you think when you don’t know what you are dealing with. Fairly challenging.