Additional responsibilities may include test performance and data analysis, materials research and analysis, engine assembly support, research, and analysis of design changes for product improvements, manufacturing support, design tools for conformance with specifications in the areas of reliability, performance, cost, serviceability, and manufacturability. Additional responsibilities may include test performance and data analysis, materials research and analysis, engine assembly support, research and analysis of design changes for product improvements, manufacturing support, design tools for conformance with specifications in the areas of reliability, performance, cost, serviceability and manufacturability.