Asked me to reverse a linked list, it was actually pretty chill. It was in the Perl programming language at the time, they've since moved on to primarily using Golang language.

Long and complicated. Way too many screening calls with various useless middle managers and a ridiculous take home exercise that assumed I would be able to dedicate a week's worth of time to it. Culminated with a full day on-site interview with multiple people and departments where I was asked to jump through hoops over and over. Got an offer but the tech-bro culture on display was not something I was interested in.