Mindrift is seeking a CFD Engineer to help train and evaluate AI agents on expert-level fluid simulation tasks by setting up simulations, building verified reference solutions, and writing Python checks. Candidates need a degree in Mechanical or Aerospace Engineering (or related field), industry or research experience with CFD tools like OpenFOAM or ANSYS Fluent, Python and GitHub skills, and B2+ English proficiency. The role is a remote freelance opportunity in the United States offering around 10–20 hours per week during active phases.