Applied online. Was sent a questionnaire by the recruiter to fill out via email to review skills. Thereafter, was invited for an in-person final round at their HQ in Waltham. The final round was a series of quick 30 minute interviews back-to-back with a bunch of team members including the hiring manager as well as a couple of directors. Overall everyone was nice and personable. The only negative is that I never received even a generic auto-generated rejection email, much less feedback call. The hiring manager told me that they wanted to fill the position quickly, so I didn't bother reaching out just to hear the inevitable either.