Senior Mechanical Engineer

About the job Senior Mechanical Engineer

Location:

Alameda, CA | Full-Time | On-Site

Launch your career to new heights. We are looking for a Senior Mechanical Engineer to design and build the mechanical and fluid systems that make spaceflight possible from cryogenic propellant loading and high‑pressure plumbing to structural components and test infrastructure. In this role, you'll take hardware from clean‑sheet design through prototyping, testing, and launch.

If you're passionate about solving complex engineering problems, working hands‑on with real hardware, and collaborating across disciplines in a fast‑paced environment, we want to hear from you.

• Own design of mechanical and fluid systems: valves, actuators, plumbing, mechanisms, and structures.
• Develop CAD models and detailed drawings (GD&T); maintain P&IDs and system flow diagrams.
• Run structural, thermal, and fluid analyses to ensure design integrity and safety.
• Lead prototyping, testing, and system integration efforts, including field and launch support.
• Define procedures for system operations, including startup/shutdown and emergency cases.
• Collaborate cross‑functionally with propulsion, test, avionics, and manufacturing teams.
• Document everything: requirements, test plans, corrective actions, and compliance packages.

• 3–6+ years of mechanical design experience (aerospace, robotics, automotive, or similar).
• Proven ability to take designs from concept through test and into production.
• Proficiency with CAD tools (NX, Solid Works, Creo) and basic FEA/thermal analysis.
• Experience working with high‑pressure or cryogenic fluid systems.
• Bachelor's degree in Mechanical, Aerospace, or related engineering discipline.
• Comfortable working hands‑on, whether it's prototyping, wrenching, or testing.

• Experience with ASME codes (B31.3), AWS welding standards, or aerospace safety protocols.
• Familiarity with high‑pressure systems (6000+ psi), LOX, RP‑1, or other cryogenics.
• Background in startup or rapid‑prototyping environments.
• Leadership in root cause analysis and corrective action planning.
• History of mentoring junior engineers or leading interdisciplinary efforts.

Apply now to help shape the future of space access one system at a time.

ITAR Requirements: This position requires compliance with U.S. Government space technology trade restrictions, specifically the International Trafficking in Arms Regulations (ITAR), Export Administration Regulations (EAR) and additional regulations governing satellite, launch vehicle, missile, and other related technologies. All jobs restricted by these regulations will be contingent upon the applicant's status as a documented U.S. Person or their ability to receive a trade license from the cognizant government agency;

in addition to any required company background checks and in compliance with applicable U.S. and California laws. Similarly, positions requiring the ability to work on government contracts or a security clearance are also contingent upon the applicant's ability to receive the appropriate clearance and be allowed to work on U.S. government contracts.

Per ITAR's definition, a documented U.S. Person is:

• A U.S. permanent resident (green card holder).
• A person granted refugee or asylee status in the United States.