The Propulsion Integration Engineer will define and optimize integration processes for rocket engine systems and propulsive components, providing workshop follow-up to ensure proper execution. Responsibilities include developing assembly procedures, performing mechanical and fluid system assemblies, troubleshooting, and collaborating with design and supply chain to improve quality. The role requires a Bachelor's degree in aerospace, manufacturing, or mechanical engineering with 2+ years of experience in complex system integration, proficiency in CAD/ERP systems, and strong language skills in English and Spanish.