In my experience the interview is based upon skills and accomplishments. They want to make sure you have the technical skills/abilities, but there are few if any behavioral questions. Mostly if you have the skills and the hiring manager likes you at the interview you will get the job.
I applied online. The process took 2 weeks. I interviewed at SAIC in July 2021
Interview
Unprofessional interviewers. Interrupted during question responses then got irritated when I asked for clarification. The interruptions had nothing to do with the current question but previous answers even though I asked if I answered the question fully for them.
Interview questions [1]
Question 1
What do you use to calculate taxes at your current job?