30-minute initial screen with a recruiter, who I enjoyed speaking with, then a one-hour technical interview with a member of the team and their CEO. The second interview focused on my experience and knowledge of React. I received zero feedback from them. After a week of silence, I emailed the recruiter, who responded later that day they had decided not to continue with me. A bit unprofessional to make your interviewees chase you down.

I did an initial phone screen, then they sent me a take home code challenge. The challenge was to build an entire SPA around a concept from a few mockups, a fairly involved process. After 20-30 hours of work I never received any feedback or reason as to why I didn't pass the challenge, even though the entire app worked as it was supposed to according to spec.