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 skills, and at least B2 English proficiency. The role is open to applicants based in Serbia, Estonia, Malta, Bosnia and Herzegovina, Lithuania, or Latvia.