Andrea Mueller laughed and conceded that she still hesitates when people casually ask her what she does for a living.
Answering "rocket scientist" or "race car engineer" always seemed to raise eyebrows, drop jaws and invite more questions.
"It’s kind of funny, even when (rocket science is) what I was doing and we would go out at night or whatever I would always tell people I was either a teacher or a gardener,” the Team Penske race engineer explained. "I don’t know why I tried to hide it, but I’ve always been the kind of person who likes to fly under the radar. So even now, it’s definitely that people are bringing it out of me to talk about it."
For this unassuming and talented young woman the truth is a far better story than anything you could make up as a conversation starter.
At only 35 years old, Mueller is one of the most respected people in the NASCAR XFINITY Series garage. In 2007, she left a successful job working on engine components for NASA’s space shuttle program to take an engineering position with Team Penske‘s XFINITY Series program and was a vital contributor to back-to-back team owner’s championships in 2013 and 2014.
Since Mueller joined Team Penske full time in 2012, the team has earned 25 of its 50 total victories — an impressive statistic that not only speaks to the talented array of drivers that steer Roger Penske’s cars, but the people — like Mueller — who prepare them.
"Andrea is kind of the central point of everything we do from an information and a setup-based environment,” explained Greg Erwin, who serves as director of competition for Penske’s XFINITY Series program. "She is critical to the success of this 22 program and has been for multiple years now. I saw it last year in a managerial role and now working with her more closely on a day-to-day basis.
"She’s the most pinpoint, focused, thorough individual with her craft that I’ve ever been around. She’s really, really a gift to the program. I’m thankful to have her."
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Mueller stands out in the sport because of her NASA background as much as for her gender. And that’s a source of pride for her. A former successful quarter- and micro-midget racer near her hometown of Fresno, California, Mueller insists she’s always just felt like "one of the guys."
And if she wasn’t going to be racing cars, then working around them was the next best option.
"I realized early enough, as much as I wanted to be a professional race car driver, it just wasn’t going to work out and quickly switched gears to race as long as I could and just have fun,” Mueller explained. "Then mechanical engineering became my focus. The deal with my dad was all through racing, I had to have straight-As to race so he pretty much set me up to help me stay on the path (to college) as well."

Gender really had nothing to do with either of her professional tracks.
However, Mueller acknowledges there are still few women working on cars in the garage, but the numbers are growing. And she’s hopeful her opportunity and success will attract others.
"Growing up with race teams I was around whether it was my dad’s or when I was racing as a teenager or even in college, I was always just one of the guys," Mueller said. "I’m very fortunate it never was an issue.
"The one thing I hope comes out of all this is that (young women) see there’s no reason they can’t do whatever they want."
And to her credit, Mueller’s team has always been more focused on her ability than her gender.
"Our team doesn’t look at her any differently,” Penske driver Joey Logano said after celebrating yet another XFINITY Series win at Talladega Superspeedway this spring. "Andrea’s a great asset. She helps (crew chief) Jeremy Bullins, she helps Greg (Erwin) a ton and I like that she’s very assertive. She’s not scared to put in her opinion and that’s a good thing to have in that position.
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"The best crew chiefs and engineers are racers first and I think you have to have racing in your blood to understand the grassroots of motorsports then to have the engineering degree … that’s key. You’ve got to have both and Andrea does. They don’t teach the sport in college.
"And Andrea’s more exited than anyone to win these races."
With the success and recognition Mueller’s earned, flying under the radar won’t be an option, especially when she achieves her next goal — to be a race engineer in the Sprint Cup Series.
Breaking down gender stereotypes is old hat and a non-issue for Mueller, who’s held dream job after dream job. Her focus is not surprisingly more singular: winning.
"At the end of the day, sometimes you have to pinch yourself," Mueller said. "Am I really working on race cars for Mr. Penske and this is really my job and I’m getting paid to do this? That’s outstanding."