I experienced a tremendous amount of runaround and poor communication. The interview process was reset twice due to some kind of clerical error.

Most of the interviews were fine, but the system design interview with the hiring manager felt pretty hostile. The interviewer did not seem to have thought about the domain elements of the problem at all.

Given a 1D height map of a terrain slice, calculate the water level at each position if it were full of water.

Design a system to collect temperature data from networked sensors and push it to a weather forecasting app.