I applied online. The process took 3 months. I interviewed at C3 AI (United, PA) in Feb 2023
Interview
I forgot if there was an OA or not, but there are 2 rounds of technical interviews. The interviewers were both nice and helpful. Overall, it was an OK experience.
Got the OA it was very straightforward DFS solution but towards the end it had a certain factor that was confusing. They showed some C++ code even though my preferred language was Python which sort of threw me off.
I applied through university. I interviewed at C3 AI (Santa Barbara, CA) in Oct 2018
Interview
Started with a behavioral, going over resume. Next was a coding challenge, which was done on hackerrank. This was 2-3 coding questions, equivalent to 1 leetcode easy and 1-2 leetcode mediums. Then was the final interview, in person with 2 technical questions.
Interview questions [1]
Question 1
General behavioral questions, a lot of resume questions