Mindrift is seeking a CFD Engineer to help train and evaluate AI agents on expert-level fluid simulation tasks by setting up simulations, building reference solutions, and writing Python checks. Candidates need a degree in Mechanical, Aerospace, or related engineering fields, practical CFD experience (OpenFOAM, ANSYS Fluent/CFX, or STAR-CCM+), familiarity with Python and GitHub, and English proficiency at a B2 level or higher. This remote freelance role based in Spain involves an estimated 10–20 hours per week during active project phases.