Aerodynamics Engineer
Posted Oct 2, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about an aerodynamics or fluid mechanics project you owned. What question were you trying to answer?
What they are checking: Whether they frame research around a clear question and carry it through on their own.
Tell me about code or a model you wrote to analyze aerodynamic data.
What they are checking: Hands-on coding and model development, which the posting lists as part of the job.
What would you do
Your CFD says a design saves 10 watts, but the wind tunnel shows almost nothing. What do you do?
What they are checking: Careful reconciliation of conflicting data instead of picking the result they prefer.
How would you explain to a frame designer why a tube shape needs to change, when they care about weight and looks?
What they are checking: Communicating engineering results clearly to cross-functional design teams.
How do you decide which open-ended research questions are worth pursuing?
What they are checking: Judgment to focus research on what will improve real products.
About the work
How do you decide when to trust CFD results and when you need wind tunnel or track data?
What they are checking: Understanding the limits of each method and how they validate each other.
A rider and bike together are a messy, moving shape. How would you set up a CFD study that gives useful answers for a new frame?
What they are checking: Practical modeling choices for geometry, turbulence, yaw angles and rider position.
How would you test aerodynamics in the real world on a track or road, given wind and rider variability?
What they are checking: Knowledge of field testing methods and how to handle noisy data.
What is yaw angle, and why does it matter for bike aerodynamics?
What they are checking: Whether they know the core idea behind cycling aerodynamics, since riders rarely face a pure headwind.
How would you measure the aero gains of a helmet or a piece of clothing?
What they are checking: Whether they can apply methods across bikes, components and accessories.
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Practice this out loudThe full job description
As published by Trek Bicycle.