(Note: I work at Triplebyte.) No CVs -- we skip resumes and cover letters, and match engineers to companies (bypassing recruiter and resume screens) based on demonstrated skills.

Demonstrated how?

They have you take a quiz and (maybe) do an interview with one of their partner companies. FWIW I took the quiz and it was actually one of the better "fill out this survey and we'll see if we want to hire you"'s that I've ever seen: finding subtle-ish errors in code, demonstrating more than beginner knowledge in a couple of languages, and a pretty solid set of design questions. I didn't feel out of my league, but I also didn't feel like my intelligence was insulted.