I applied online. The process took 1 day. I interviewed at Radiator Labs (Brooklin, ME) in Dec 2022
Interview
They explain about the company, ask a few questions about you and then ask a problem that has nothing to do with either the company or software engineering. They said they are trying to validate how the candidate deals with unexpected problems.
Interview questions [1]
Question 1
Create an hypothetical problem from scratch that has nothing to do with what that company does and solve it.