Mindrift is seeking a CFD Engineer to help train and evaluate AI agents on expert-level fluid simulation tasks by running simulations, building verified reference solutions, and writing Python checks. Applicants must have a degree in Mechanical or Aerospace Engineering (or related field), hands-on CFD experience with tools like OpenFOAM, ANSYS Fluent/CFX, or STAR-CCM+, Python skills, and at least B2-level English. This is a remote, freelance role based in the United States.