Senior Mechanical Engineer

The Valentino Group • Alameda, CA

15d • Onsite

About The Position

Build the systems that make spaceflight possible. Our client is seeking a Senior Mechanical Engineer to design, analyze, and deliver the mechanical and fluid systems behind launch operations—everything from cryogenic propellant loading and high-pressure plumbing to structural components and ground/test infrastructure. Youll own hardware from clean-sheet design through prototyping, test, and integration, working side-by-side with propulsion, avionics, test, and manufacturing team. If you thrive on complex engineering problems, fast iteration, and hands-on hardware work, this role is for you.

Requirements

• 3–6+ years of mechanical design experience in aerospace, robotics, automotive, energy, or similarly rigorous hardware environments
• Demonstrated ability to take designs from concept prototype test production
• Proficiency with CAD tools such as NX, SolidWorks, or Creo , and comfort with drawing release workflows
• Working knowledge of FEA and/or thermal analysis (commercial or internal tools)
• Experience with high-pressure and/or cryogenic fluid systems
• B.S. in Mechanical Engineering, Aerospace Engineering, or related discipline
• Comfortable working hands-on (prototyping, assembly support, test setup, troubleshooting)

Nice To Haves

• Familiarity with relevant standards such as ASME B31.3 , welding standards (e.g., AWS), or aerospace safety practices
• Experience with 6000+ psi systems and/or propellants like LOX, RP-1 , or comparable cryogenic/hazardous fluids
• Background in startup / rapid prototyping environments with high ownership and fast iteration cycles
• Strong root cause analysis and corrective action leadership (failure investigations, containment, long-term fixes)
• Experience mentoring junior engineers or leading cross-functional technical efforts

Responsibilities

• Own end-to-end design of mechanical and fluid systems including valves, actuators, plumbing, mechanisms, and structures
• Create and maintain 3D CAD models , detailed drawings, and GD&T ; manage P&IDs and flow diagrams as needed
• Perform and interpret structural, thermal, and fluid analyses to validate performance and ensure safety margins
• Drive prototyping, build support, and integration , including hands-on troubleshooting on the floor and during testing
• Plan and support system-level test campaigns (qualification, acceptance, and troubleshooting); provide field/launch support when required
• Define operating procedures including startup/shutdown and off-nominal or emergency conditions
• Partner cross-functionally with propulsion, test, avionics, and manufacturing to enable buildable, testable designs
• Produce clear documentation: requirements, design reviews, test plans, nonconformances/corrective actions, and compliance packages

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level