Operations Research Analyst applicants have rated the interview process at FAA with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 72% positive. This is according to Glassdoor user ratings.
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They were very professional but laid back at the same time. I didn't get any curve ball questions. Everything was straight forward and matter of fact. If I had to do it over again, I would.