There are 3 stages of interview for Grab. First is an introduction call, having you answer basic questions and maybe introduce your assignments and projects. Second is a code review, you need to explain your coding direction before coding, then the interviewer might also ask you to modify your code based on their requirements. Lastly is speaking with your might be superior. They will ask you questions on theorical and practical questions.

Standard processing first HR then user interview. HR ask standard questions and user give technical questions for me to answer. Process flow quickly and seamlessly from HR to user does not take more than a week