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Senior Staff Mechanical Engineer

CesiumAstro - El Segundo, CA, United States - In-office - posted 2026-10-19

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CesiumAstro is seeking a Senior Staff Mechanical Engineer to lead the development of advanced communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. This is a hands-on, technical leadership role in a dynamic, cross-functional environment. You will apply mechanical engineering principles to develop mechanical systems, structures, mechanisms, and assemblies across multiple products and manufacturing programs. Key responsibilities include: • Designing and evaluating mechanical components, assemblies, structures, and mechanisms with focus on structural performance, thermal behavior, tolerance requirements, and manufacturability. • Leading complex engineering analyses, structural evaluations, thermal assessments, design trade studies, and technical reviews to resolve challenging mechanical engineering issues. • Directing highly complex mechanical verification, qualification, validation, and testing activities supporting engineering and manufacturing objectives. • Analyzing engineering data, test results, inspection findings, and product performance to develop solutions that improve mechanical system performance and reliability. • Guiding root cause investigations, engineering changes, corrective actions, and design improvements supporting successful product development and manufacturing. • Serving as a primary technical resource for mechanical engineering across significant engineering and manufacturing initiatives. • Providing mechanical engineering guidance through design reviews, engineering investigations, manufacturing reviews, supplier evaluations, and complex technical problem resolution. • Mentoring engineers and promoting consistent mechanical engineering practices across the organization. • Advancing mechanical engineering methodologies, design practices, engineering standards, verification approaches, and analytical techniques across multiple programs. • Evaluating emerging technologies and manufacturing processes to identify opportunities for improvement and enhance product performance, manufacturability, reliability, and design efficiency. This role requires technical depth and leadership capability to guide engineering teams and drive innovation across multiple concurrent programs. REQUIREMENTS: • Bachelor's degree in mechanical engineering, aerospace engineering, civil engineering, industrial design, engineering technology, or related technical field with 12–15 years of related experience; OR Master's degree with 8–12 years of related experience; OR PhD with 5–8 years of related experience in mechanical engineering, structural analysis, stress analysis, CAD, product design, or related engineering discipline. • Substantial knowledge of mechanical engineering principles, machine design, structural analysis, mechanical systems, and product development methodologies. • Extensive experience designing mechanical components, assemblies, structures, mechanisms, and manufacturing solutions across multiple engineering programs. • Comprehensive understanding of engineering analysis, structural analysis, thermal analysis, tolerance analysis, GD&T, manufacturing processes, product verification, and system integration. • Ability to develop innovative solutions for highly complex mechanical engineering challenges while advancing technical capabilities. • Sound judgment in guiding technical decisions, mentoring engineers, and advancing mechanical engineering methodologies. • Proficiency with Microsoft Office Suite (Outlook, Word, Excel, PowerPoint, Teams). • Experience with mechanical design, CAD, simulation, and engineering analysis tools such as SolidWorks, Creo, ANSYS, MATLAB, or equivalent applications. • Experience with engineering documentation, PLM, ERP, and collaboration tools such as Windchill, SAP, Jira, or equivalent applications. • Must be a U.S. citizen, lawful permanent resident, conditional resident, asylee, or refugee, or eligible to obtain required authorizations from the U.S. Department of State (export control requirement).

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