Mindrift is seeking a Freelance Mechanical CFD Engineer to help train and evaluate AI agents on expert-level fluid simulation tasks, including running simulations and writing Python checks. Candidates need a degree in Mechanical or Aerospace Engineering (or a related field), hands-on CFD experience with tools such as OpenFOAM or ANSYS Fluent, Python proficiency, and at least B2-level English. Applicants must be located in Romania, Poland, Czechia, Hungary, Slovakia, or Bulgaria.