The interview process was long and involved multiple calls from a recruiter, then a manager, an online UML test, and finally an onsite interview with three separate people. I believe the process can be expedited if you are in a rush.

During the onsite interviews, they mainly discussed my experience and tried to gauge whether I would be a good fit. They didn't ask me any of the usual technical interview questions, such as those on programming languages, algorithms, or even basic object-oriented concepts. It seems their primary method of technical assessment is to explore your understanding of a system you have worked with previously.

Standards are very high, so you really need to be above average at every stage of the interview process. Overall, it was a well-run process, and I wasn't left with any doubt at the end as to why I didn't receive an offer.

Model a ticketing system.

Draw a system model diagram of a system you are familiar with. You need to know this inside out and be able to expand on how you would improve various aspects of it, including scalability and security.