Mindrift seeks a CFD Engineer to train and evaluate AI agents on expert-level fluid simulation tasks by setting up simulations, building verified reference solutions, and writing Python checks. Applicants must have a degree in Mechanical or Aerospace Engineering (or related field), industry or research experience in CFD tools like OpenFOAM or ANSYS Fluent, and familiarity with Python and GitHub. The position is a remote, part-time freelance opportunity requiring B2 level or above English.