I was interviewing for a forward-deployed/field engineer role and they expected me in an hour to come up with a nuanced strategy, down to SOAP vs REST with timelines and specific commitments, on how I'd do a large-scale payment integration with a partner. The interview was a disaster. Not only was it clear that my interviewer had little real-world experience in the sort of environment we were roleplaying (with internal politics, tons of legacy, teams of varying quality and type of skills, etc) but it seemed they were looking for something really specific I just couldn't grasp.

It went horribly and I didn't get an offer. So maybe a counterpoint to an otherwise great company with great process. To their credit, they said they didn't really have a bar for this (newish) role. But still, it was amateurish and all-around bad.