OpenTrain is seeking a CAD and Simulation Engineer to evaluate technical assets, simulation workflows, and models for AI training across aerospace, mechanical, and electrical engineering domains. Candidates must have at least 10 years of CAD and simulation experience, strong engineering fundamentals, and proficiency with relevant software tools like ANSYS, MATLAB, or SolidWorks. The role is an 8-week worldwide remote contract requiring 20 to 40 hours per week with at least 4 hours of overlap during Pacific Time.