Mindrift is seeking a CFD Engineer to help train and evaluate AI agents on expert-level fluid simulation tasks by running simulations, building verified reference solutions, and writing Python checks. Candidates must hold a degree in Mechanical or Aerospace Engineering (or a related field), possess several years of CFD experience (OpenFOAM, ANSYS Fluent/CFX, or STAR-CCM+), be proficient with Python and GitHub, and have at least B2-level English. The position is a remote freelance opportunity requiring approximately 10–20 hours per week during active phases.