This on-site Senior Stress Engineer role is based in Hawthorne, California, within an early-stage advanced manufacturing company developing next-generation composite materials for aerospace and defense sectors. As the first dedicated engineer in this function, the position involves establishing the structural analysis department from the ground up. Key responsibilities include building and validating finite element models for novel composite systems, guiding design decisions through simulation insights, and leading mechanical testing strategies to ensure product reliability. The role appeals to candidates seeking high ownership and the chance to directly influence technical strategy in a fast-paced, venture-backed environment. It offers significant growth opportunities, equity participation, and the chance to shape foundational capabilities for a scalable business.