Spacecraft Mechanical Design Lead

MOMENTUS Space; San Jose (CA); On-site; USD 145,000 - 175,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401k retirement plan

Short and long-term disability

Life insurance

Flexible PTO

11 paid holidays

Job summary

Momentus Space seeks a Senior Mechanical Engineer to drive the mechanical, structural, and thermal design of flight spacecraft. You will guide assemblies from concept through build, integration, and test in a fast-paced environment.

The role emphasizes independent work, close collaboration with analysts, and hands-on testing, including vibration and static/shock tests, with potential TVAC support. BS in mechanical engineering and 5–10 years' space hardware experience preferred.

Qualifications

• Proven experience with detail design of mechanical hardware.
• Experience defining requirements for mechanical systems and components.
• Familiarity with the space environment and its impact on hardware.
• Knowledge of material selection and coatings for space use.
• Understanding of spacecraft structural loads and thermo-mechanical stresses.
• Ability to work independently and communicate clearly.

Responsibilities

• Mechanical design of spacecraft components including primary structure, brackets and enclosures.
• CAD design using SolidWorks; familiarity with Duro PLM.
• Routing of plumbing lines for propellant feed system and thrusters.
• Collaborate with structural analysts for integrity across launch lifecycle.
• Coordinate with thermal analysts to maintain components within temperature limits.
• Conduct mechanical testing: vibration, static load, and shock tests.
• Support TVAC testing as needed.

Skills

Detail design

Requirements definition

Space hardware

Independent work

Strong communications

Education

BS in Mechanical Engineering

Tools

SolidWorks

Duro PLM

Job description

Momentus Space seeks a Senior Mechanical Engineer to drive the mechanical, structural, and thermal design of flight spacecraft. You will guide assemblies from concept through build, integration, and test in a fast-paced environment.

The role emphasizes independent work, close collaboration with analysts, and hands-on testing, including vibration and static/shock tests, with potential TVAC support. BS in mechanical engineering and 5–10 years' space hardware experience preferred.