Modular Mining Systems Junior Software Engineer interview questions

Applied online, the first round was a Hackerrank coding challenge with 2 coding questions. Next round was a 3-hour video interview on the Hackerrank CodePair platform. This interview involved going through one question from the previous round which was incomplete and one new coding question. I was told next round would be an on-campus interview at their office location but didn't cross the second round. All coding questions where on data structures and algorithms.