Atlassian Software Engineer Java Developer interview questions

Process is as described by other reviews: offline test, informal HR chat, pair programming exercise, technical/team interview and finally cultural interview which is an informal chat about your experience and how you relate to coworkers. I'd like to add that they're very flexible so if you don't qualify for a position they offer you to interview for other that may suit you better. So I started process for Senior developer, then switched to plain developer, then failed the interview with a team but they offered to interview with a different team and finally I got an offer.

I booked an online test which contains MCQ and coding part. MCQ is about java programming, generics and memory model. There are 3 coding tasks. The first one you need to use KMP algorithm. Second one need to know data structure in java. Third one is to implement a problem solver, it is like normal ACM question.