Braintrust is seeking a remote freelancer with strong expertise in OpenRadioss for crash and impact simulations. You will review and annotate engineering datasets, assess technical accuracy, and explain corrections. This project-based role expects 15-20 hours per week and supports AI model training and evaluation for a leading AI lab. The adecuado candidate has 5+ years in crash/impact nonlinear dynamic simulation, hands-on OpenRadioss experience, and proficiency in FEA and simulation workflows.