Multiple 30 min interviews with different department heads with lunch hosted by one of the interviewers. I had an on-site interview after a phone screen. The interview was held in the conference room.
Engineer applicants have rated the interview process at Airgain 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 100% positive. This is according to Glassdoor user ratings.