Whiteboard problems, some logic puzzles. I found the interviewers pretty rude to be honest. Didn't want to make me work at the company at all. They could probably sense it too - I didn't get an offer, but feel like I dodged a bullet!
And the Glassdoor reviews seem to agree with me.
Whiteboard problems, one about truth tables
The following metrics were computed from 20 interview experiences for the Upstart Software Engineer role in United States.
Upstart's interview process for their Software Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Upstart's Software Engineer interview process in United States.