Mindrift is seeking a Freelance Mechanical CFD Engineer to help train and evaluate AI agents on fluid simulation tasks. The role involves taking CAD geometry, running simulations, creating verified reference solutions, and writing Python validation checks. Candidates should have a relevant engineering degree, hands-on CFD experience (e.g., OpenFOAM, ANSYS Fluent, or STAR-CCM+), familiarity with Python and GitHub, and B2+ English proficiency.