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Senior Staff Mechanical Engineer

CesiumAstro - Westminster, CO, United States - In-office - posted 2026-10-06

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CesiumAstro develops advanced communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. The company is seeking a Senior Staff Mechanical Engineer to lead the mechanical engineering team responsible for spacecraft, subsystems, and interfaces across all development phases. In this role, you will serve as the responsible mechanical authority and team lead, managing a small team of engineers through the complete spacecraft development lifecycle. Your responsibilities include: - Leading and mentoring a multidisciplinary mechanical engineering team - Directing mechanical design, electronics packaging, and CAD work - Developing spacecraft mechanical architecture and system-level design trades - Managing requirements definition, architecture trades, block diagrams, analysis, manufacturing, assembly, testing, qualification, and in-orbit support - Collaborating with GNC, EPS, CDH, Payload, RF, Systems, and AI&T teams - Supporting spacecraft integration, environmental testing, and resolution of vehicle-level technical challenges - Presenting engineering design review materials to customers and executive leadership - Participating in proposal-writing efforts You will work hands-on with mechanical design, thermal architecture, deployable and actuated structures, and environmental qualification of spacecraft. Excellent written and verbal communication skills are essential for this role. REQUIREMENTS: - BS or MS in Mechanical Engineering, Aerospace Engineering, or related technical field - 12+ years of relevant experience - Demonstrated technical leadership of spacecraft mechanical development, including ownership of major design decisions and successful execution through one or more full development cycles - Experience leading and mentoring multidisciplinary mechanical teams and coordinating across structures, thermal, mechanisms, electrical, manufacturing, analysis, and AI&T - Strong understanding of spacecraft mechanical architecture, structural design, mechanical interfaces, and system-level design trades - Hands-on experience supporting spacecraft integration, environmental testing, and resolution of vehicle-level technical challenges - Strong knowledge of design for manufacturing, assembly, test, reliability, GD&T, and mechanical drawing practices PREFERRED EXPERIENCE: - Experience supporting vibration, shock, and TVAC campaigns - Experience with spacecraft primary and secondary structures, including metallic and/or composite designs - Familiarity with mechanical CAD and analysis tools such as SolidWorks, Ansys, Nastran, or equivalent NOTE: Applicant 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 to comply with U.S. Government Space Technology Export Regulations.

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