I don't know how much hiring you've done, but in my experience, everything you're asking for does not correlate to hiring quality employees. If you're hiring a

I don't know how much hiring you've done, but in my experience, everything you're asking for does not correlate to hiring quality employees. If you're hiring a senior role, there should be demonstrated experience in these areas you can discuss in a 30 minute interview. If they don't have that experience already and need a take home case study to demonstrate it, then they aren't fit for a senior role. Even junior candidates should be assessed by ML portfolio work and taught the rest. Your job as an interviewer isn't to come up with questions that aren't too easy or grade homework assignments. It's to assess a candidate's experience and ability to do the role you're interviewing for. Making a grind interview means you'll drive away the best candidates that have options and find your process disrespectful of their time and experience.