I applied through college or university. I interviewed at SLB
Interview
The first round of process was purely based on what you mentioned in resume. If you mentioned only one programming language they asked me why only one.
But you can expect tough questions in the second round from showing what you deployed to system design.
Interview questions [1]
Question 1
Made a class and then derive subclass from subclass itself.
How to protect a class from the inheritance.