I applied through a recruiter. The process took four weeks.

A technical recruiter initially reached out to me to schedule a brief call and see if I was interested in the role, and to ask a little bit about myself. This went well, and I was asked to participate in a live coding interview. The coding interview was simple enough. There were no gotchas really. I have the sense they wanted to see if I followed object-oriented design principles and coding best practices.

Following this, I was asked to participate in three back-to-back one-hour interviews:

• Another coding interview
• One culture interview with someone on the team I would be joining
• One 'bring your own design' interview

Again, nothing too complex here, but you definitely need to know your algorithms, data structures, and best practices, and be able to communicate well to get your ideas across. Lastly, I was invited to have an informal conversation with someone else on my team to figure out what area I should start working in within the team.

I had a good experience with everyone. All interviewers were very nice and encouraging. The only thing I didn't like was the wait between interviews! It was usually about a five-day wait until hearing about next steps and a whole week until hearing back about a final offer. The whole process took about one month, with interviews being scheduled about a week apart from each other.

Develop a Mars rover system that can move throughout a 2D grid. Develop a system that takes in trading activity and calculates a final balance/stock quantities. How would you scale a system out?