A statistical, mathematical, logical test using a testing platform. But I wouldn't know what comes next, because even tho I came first in the test (they published the points directly) and then was invited for an interview with HR, after 5 mins they send me an email they had closed the position.

Submitted my resume through their web portal. Got some email response. went through a take hom technical exam, as well as a technical phone interview. Then I got ghosted. For weeks I sent messages to the recruiter both through email, and through their HR portal system. NO RESPONSE. The worst recruiter behavior I have ever encountered.