Mindrift is seeking a freelance Mechanical CFD Engineer to train and evaluate AI agents on expert-level fluid simulation tasks by running simulations, building reference solutions, and writing Python checks. Candidates need a degree in Mechanical or Aerospace Engineering (or related field), extensive CFD experience with tools like OpenFOAM or ANSYS Fluent, Python and GitHub familiarity, and B2-level English. The position is open to applicants in Japan, South Korea, New Zealand, and Singapore.