Principal Mechanical Engineer - Advanced Programs

Who We’re Looking For

Quantum Space is seeking a Principal Mechanical Engineer for Advanced Programs to drive mechanical architectures for next-generation spacecraft concepts—where requirements are evolving, the trade space is wide, and rigorous engineering judgment matters.

This is a principal-level role: you will own ambiguous problems, set technical direction, and lead cross-functional execution toward buildable designs. 

Where You’ll Make an Impact

Lead mechanical architecture and trade studies: packaging, mechanism concepts, structural layout, thermal hardware accommodation, serviceability, and integration strategy

Own subsystem/interface definitions and drive closure with systems engineering: ICD inputs, keep-outs, access constraints, mass properties, alignment and stability needs

Drive mechanical design maturation from concept to preliminary/detailed design: requirements, sizing logic, margins and assumptions, verification strategy

Lead risk identification and mitigation planning (materials, joints, mechanisms, contamination, alignment, thermal distortion, integration sequence)

Support prototype builds and rapid iteration: design-to-test loops, test learning incorporation, design updates

Partner with procurement and suppliers: SOW technical inputs, technical evaluation, vendor coordination, design for manufacturability feedback loops

Deliver review-quality content: architecture rationale, risk posture, verification approach, and build/test readiness

What It Takes

BS or MS in Mechanical Engineering or related field

10+ years mechanical engineering experience, with sustained ownership of complex hardware development 

Broad mechanical systems knowledge (structures, mechanisms, packaging, integration realities)

Strong communication and leadership without relying on org-chart authority

Comfort operating in ambiguity and driving crisp decisions with incomplete data

Work location within the LA area

Nice-to-Have Experience

Spacecraft mechanism design (release devices, deployment, latching, pointing structures)

Experience supporting environmental testing and verification closure

Creo/Windchill experience and ability to guide design quality standards

What You’ll Get

Ownership – Be a technical anchor in Advanced Programs

Innovation – Turn early concepts into executable hardware roadmaps

Impact – Shape the next spacecraft generation

Compensation – Competitive salary, equity, and comprehensive benefits

Additional Requirements

To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. § 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Apply now. Help define the mechanical future of Quantum Space.