The hiring and interview process are streamlined, especially when the company really needs people. However, it varies highly by department/division.
Your best chance is through an employee reference.
The process typically involves a phone screen, followed by an on-site interview if you're a match.
On-site interviews are mostly one to two days long and involve four to six people. I have seen candidates required to make a 10-minute presentation on a random topic, but that is an exception.
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The following metrics were computed from 1 interview experience for the IBM Design/Verification role in United States.
IBM's interview process for their Design/Verification roles in the United States is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having mixed feelings for IBM's Design/Verification interview process in United States.