I applied online. The process took 3 weeks. I interviewed at AICS (Taipei) in Jul 2022
Interview
I got a codility test, easy~medium and 1.5 hour first. And two weeks later, I got a online interview and is the last stage, use 5 min to intorduce yourself first and ask a Leetcode medium problem about binary tree.
Interview questions [1]
Question 1
Given a binary tree, the value of node is distinct. we can remove the leaf node each time until there is no node in the tree. We put the remove node into a list, and be sorted and put sthe sorted list to the anwer list. Bottom-up is required. Output is List>.
The process took 3 weeks. I interviewed at AICS (Singapore)
Interview
The interview process was certainly comprehensive, including an introductory Codility test followed by 4 coding rounds. These rounds typically focused on hard Leetcode questions, and the interviewers require you to come up with the most efficient algorithm in 45 mins that took researchers years to discover.
There's room to improve the conversational aspect of the interview. A detailed introduction of the interviewer's role before diving into the coding questions would add comfort for the interviewee. Apart from this, the interviewers tell you a long coding question orally, and paste some input and output in MS Team's chat, letting you think and understand all that they're saying verbally, never have I ever seen a coding round being conducted this way. Please cater to your interviewees, and have an online coding environment with a clearly pasted question for the interviewee to read.
The process might benefit from a reconsideration of how many rounds are truly necessary to gauge a candidate's proficiency. There were no System Design related questions asked in these 4 rounds.
The communication with the HR team could have been more comprehensive, particularly post-interview. Receiving feedback, even if not selected, would be valuable for interviewees.
Interview questions [4]
Question 1
Height of Binary tree after subtree removal queries