I applied online. I interviewed at Roblox in Jan 2021
Interview
The first round was an online assessment on Hacker Ranks. Total 3 questions for 1.5 hr. The questions were all medium Leetcode questions. Not too hard.
One question I got was exactly the same as the one in Leetcode (look for Roblox tag). The 2nd one was similar but still different. The last one was a new question.
Interview questions [1]
Question 1
- Paint House - DP
- Sort String with 2 conditions, needed to convert Roman characters
- permutation
I interviewed twice for this position. I passed the online OAs which included four tests, and was invited to a technical interview online. The first interview was two reasonable LC easy-mediums which had two parts each. However, I could not complete the second part of the second question. When I re-interviewed with them two months later to try again, the question bank got way more difficult, involving LC med-hards. I could not complete the questions the second time around, and I imagine you would have to basically memorize these answers to be able to do them on the interview in an hour each.
First part of the interview was 2 different cognitive assessment, both hosted as Roblox games. First involved trying different combinations of car assemblies to pass different obstacle courses. Second involved optimizing a factory production line.
The second part of the interview takes you through a bunch of different workplace situations, and asks you to assess the least and most effective ways to address them from a list of options.
And finally, you are asked to complete two leetcode like questions on CodeSignal. One was about medium and one was hard.
I applied online. The process took 4 weeks. I interviewed at Roblox
Interview
OA - Roblox games, and regular leetcode style questions
Technical Round - Leetcode style questions. Didnt get pas this because I had an offer elsewhere, but Medium to Hard style questions
Interview questions [1]
Question 1
Optimize Factories - maximize the output while minimizing cost