Mechanical Engineer applicants have rated the interview process at Firefly Aerospace with 3.3 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 58.3% positive. This is according to Glassdoor user ratings.
Candidates applying for Mechanical Engineer roles take an average of 14 days to get hired, when considering 4 user submitted interviews for this role. To compare, the hiring process at Firefly Aerospace overall takes an average of 26 days.
Common stages of the interview process at Firefly Aerospace as a Mechanical Engineer according to 4 Glassdoor interviews include:
Skills test: 40%
One on one interview: 20%
Presentation: 20%
Phone interview: 20%
Here are the most commonly searched roles for interview reports -
I applied online. The process took 2 weeks. I interviewed at Firefly Aerospace (Cedar Park, TX) in Feb 2023
Interview
About an hour long phone call with engineering manager to discuss experience and interest in work at Cedar Park location. Mostly went over resume and experience and then had a few technical questions related to stress and strain
Interview questions [1]
Question 1
To walk through a stress-strain curve and what each portion means
I applied online. I interviewed at Firefly Aerospace (Cedar Park, TX) in Sep 2025
Interview
Quick interview process - hiring manager was friendly and to the point. I appreciated that he asked technical questions but was respectful and good at listening. It gave me a good impression of potentially working on his team.
Interview questions [1]
Question 1
Tell us about a difficulty you had while building a prototype
Very easy and straightforward, with no trick questions or anything like that. There was a technical portion, but it shouldn't be a problem if you have very sound and solid fundamentals.
Interview questions [1]
Question 1
What is a project that you took all the way from the beginning to the end