TripleByte process started with a multiple-choice technical exam, mostly basic programming concepts to filter out people who literally don't know how to code.
I did well enough on the exam to skip over a technical screening, so I don't know how to judge that, part. Instead, I skipped to step 3, which was a a two-hour technical interview where they asked multiple, more difficult questions and watched me code. It was much more challenging, but the interviewer was pleasant and engaging, offering suggestions at appropriate times.
The day after that, I woke up to find I had been accepted into the TripleByte system, and from there it was off to the races, with multiple arranged on-site interviews with multiple companies, ultimately culminating in a job offer! My talent manager, Michelle, was especially helpful and kind, and I would recommend this service to anyone in the future.