I applied through an employee referral. I interviewed at Apple (Cupertino, CA)
Interview
Their primary focus would be you knowing both DSA and hardware basics. Practice Leetcode before interview of this particular role. Hardware questions ranged from MOSFETs theory, to VLSI and timing analysis.
Interview questions [1]
Question 1
Write a program in your language of choice (python) to find the longest substring in an array with no repeated characters.
I applied online. I interviewed at Apple (Austin, TX)
Interview
4 rounds of interview, 1st round is manager's phone interview which is quite easy, the 2nd ~ 4th round of interview are on the same day, which focus on technique, communication, etc.
6 interviews. ~1 hour each one. 1-2 leetcode question in each interview, including implementation and discussion on the solution and how to improve it. Few short questions about Design Verification, just to see how is my understanding in my current job. Interviewers were kind and respectful.
Interview questions [1]
Question 1
An array of colors is given. E.g. RBRBRBB. We need to find a way to calculate the minimum number of swaps in order to get all the red elements on one side and the blue in the other side.