Approached by Hiring Manager.

1h coding prescreen.

4.5 hours of 1:1 interviews:

• 1h coding (UI)
• 1h algorithms
• 1h brain teasers and math
• 1h coding (JS knowledge)

30m with Senior Manager.

Code a calculator backend for a UI.

Algorithms: Maximize stock price on trading (LeetCode problem). Backup question: Distribute a problem across multiple hosts. Insight: Ordering is important for prices, and the local maximum may be the best trade. Reverse a linked list (wasn't prepped - LeetCode question).

Math: Calculating area, displacement of water questions, Earth warmer in summer over winter, why. Lots of stuff that may or may not apply to work but tests for a certain personality type.

Last coding exercise was more interesting: Implement Promise.all-type code. It involves semaphores. You can cheat because JS is single-threaded on firing callbacks when the final task is finished.