I applied online. The process took 1 week. I interviewed at Optum (Dublin, Dublin) in Jan 2022
Interview
1. Got a screening call, asking about my educational background, etc.
2. Did a quick 10 minute recorded video interview through HireVue.
3. Did a Codility test, got to choose which language you wanted to code in. Challenge was mostly just transforming data on a Movie database.
4. Online interview through Teams with the Principal Data Scientist and the Head of Analytics.
Interview questions [1]
Question 1
Q. Why did you choose to use the data structures that you did?
Q. Why do you think they asked you these questions?
Q. What would you do differently if you could do it again?
Q. What do you do when you are faced with a challenge that you don't know how to do?