I applied online. The process took 2 weeks.

• 1st stage: general discussion about experience.
• 2nd stage: 3-part interview with 3 different levels of senior leadership. 1 medium difficulty LeetCode, no problems completing this. Discussion around personal project experiences and a values interview.
• Final interview was with a senior leader whose specialty is algorithms at the company. Non-standard interview, asked to explain an algorithm for effective stack loading and file offloading—interviewer was looking for a very specific answer and did not promote discussion outside of the desired algorithm.

Ultimately, the method of the final stage was prehistoric, and no one has to write code in the way this individual was forcing the train of thought.

To summarise the professionalism of the team: One of the interviewers took their laptop to the bathroom and went to the toilet mid-conversation about experience without warning. Wild.

Can you describe the Big O notation of a particular loop/function?