I applied online. The process took 4 weeks. I interviewed at Techtonica
Interview
First, there are two rounds of pair programming with other applicants (members of the organization and volunteers will sit in) and you review the other applicant and the observers rate both of you. If you move on from those rounds then there are more rounds where you interview with people from the organization both virtually pair programming and interpersonal, to see if you're a good fit.