Motorsports CFD Surface Design Engineer

Job Description At GM Motorsports, we are driven by a clear purpose: to accelerate our teams’ ability to win on the racetrack and in the marketplace. Our vision is to be the benchmark of global motorsports excellence, inspiring enduring passion for our brands and products through world-class performance, innovation, and teamwork. We are looking for people who share our mindset and core values — ownership in organizational success, a commitment to add value to our team, and the courage to reject mediocrity in pursuit of exceptional results. As a CFD Surface Design Engineer at GM Motorsports, you will lead the development, maintenance, and automation of complex CAD assemblies that form the foundation of our high-fidelity aerodynamic simulations. Leveraging advanced CAD and scripting tools, you will ensure robust, parametric, and simulation-ready geometry to support rapid design iteration within GM’s Aerodynamics Group.   In this role, you will work closely with CFD engineers to enable efficient mesh generation, reduce model preparation time, and improve consistency across full-vehicle and subsystem CFD studies. By integrating automated processes and scalable design practices, you will enhance the reliability and throughput of simulation-driven development.   Collaboration is central to success in this position. You will partner with cross-functional teams across GM Motorsports and key external partners to align CAD strategies to advance CFD simulations, wind tunnel testing, and on-track implementation. Your contributions will directly impact the speed and accuracy of design decisions, helping translate design ideas into high fidelity CAD to increase vehicle performance in a fast-paced racing environment.   This position may be filled with a CFD Surface Design Engineer or Senior CFD Surface Design Engineer. The level for this role will be determined based on the selected candidate’s qualifications, skills, and experience. What You’ll Do:   • Develop and maintain clean, simulation-ready CAD geometry for use in CFD workflows across multiple platforms • Build and refine high-quality surface models with appropriate continuity to support accurate aerodynamic analysis • Organize and manage CAD assemblies with clear structure, naming conventions, and version control for efficient CFD use • Incorporate parametric design and automation features to enable rapid updates, configuration changes, and repeatable CFD workflows • Reconstruct and refine legacy, imported or scanned/point cloud geometry to meet internal CFD and aerodynamic standards • Optimize models for usability, ensuring they are easy to modify, update, and reuse across simulation studies • Identify and resolve geometry issues that negatively impact mesh quality, solver stability, or convergence • Collaborate with cross-functional teams to translate design intent into efficient, simulation-ready models and support iterative development cycles   What You’ll Need (Required Qualifications): CFD Surface Design Engineer • Bachelor’s degree in Engineering, Physics, or a related field. • 2+ years of experience in CAD surfacing, aerodynamic development, CFD support, or a related engineering field. • Working proficiency in Siemens NX, CATIA, or equivalent CAD surfacing software, with experience developing or refining geometry for CFD or simulation-driven workflows. • Understanding of how CAD geometry affects meshing, solver stability, convergence, and aerodynamic accuracy, including basic knowledge of G0, G1, and G2 continuity. • Ability to create and maintain accurate, watertight, simulation-ready geometry and clean up imported or legacy CAD models with appropriate guidance. • Familiarity with surface-interrogation methods, parametric modeling, design intent, and CAD automat