Mindrift is seeking a freelance Mechanical CFD Engineer based in the United Kingdom to train and evaluate AI agents on expert-level fluid simulation tasks. Candidates must have a relevant engineering degree, several years of hands-on CFD experience (e.g., OpenFOAM, ANSYS Fluent/CFX, or STAR-CCM+), familiarity with Python and GitHub, and at least B2 English proficiency. The role is remote and flexible, requiring an estimated 10–20 hours per week during active phases.