Interviewed online in September. Questions were based on my CV and got asked a lot of option pricing questions and then some mental math questions. Got asked about my python experience and what ML models I have used. Interviewer was friendly and helpful and provided some hints when I got stuck at a question. Haven't heard back from them since.

CV Screening followed by an HR Interview followed by Final rounds of interview. HR review is basically 30-60 mins mostly easy and can be easily completed by thorough preparation of your resume and understanding market making and how it works.