I applied online. The process took 3 weeks. I interviewed at Optiver (Austin, TX) in Sept 2022
Interview
1 hour OA with puzzles, recruiter call, 1 hour technical interview. Recruiter call was simple behavioral question about motivation to join Optiver. OA was mental math and puzzles questions that wasn't too bad
Interview questions [1]
Question 1
1 hour techincal interview consisted of gambling games and expected value questions.