One of the best experiences to go through as an entry level engineer, the recruiters were field engineers before too and they invited other engineers to talk about the segments they worked on and the type of training and hour of work they had. they make sure they tell you, this job is not for everyone, it is 3 year of training and learning with working at least 80 hours a week and can get up to few days to few weeks if the job is not done. also, they told us some of their hard times were they had to stay more than 3 weeks next to the rig until the job was done. my first interview was a normal quick behavioral questionnaire phone interview. they are just trying to make sure that you understand what are applying for. the second interview started around 6 pm with everyone introducing themselves then we talked about all the segments have openings available, with presentation from the us about segments we were asked to prepare for as groups or by engineers came to introduce those segments. we kept going until 4 am. the next day we woke up at 7, had a quick breakfast then got in a bus to visit the testing labs. we had a long tour from 8 am- 3 pm, looking over multiple labs and visiting a testing rig. after that, we went back to the hotel for exit interview and choosing the segment we want to be working for. then we went to eat and we were free to go home.

1st round interview included short technical question, and telling about myself and the projects I worked on. Not difficult/or hard, but just need to explain well enough to tell the logic process