The stages were:

• Recruiter call - general questions on motivation, expectations exchange
• Take-home Codility test - 3 coding exercises, 2 hours
• Technical interview - online coding challenge via Codility
• System design interview - drawing diagrams with system components and data flows
• Behavioural interview with the managers

I was met with hospitality, and was not feeling under much pressure. The interviewers were well engaged on all of the stages. Feedback was provided in bulk during the final offer-call.

The 2nd greatest element in an array. The Nth greatest element in an array.

System design Designing a feature for the system (not the entire system from scratch)