Senior Mechanical Engineer - Spacecraft Systems

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

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401k plan

Short/long-term disability

Life insurance

Flexible PTO

Holidays & parental leave

Job summary

Momentus in San Jose, CA is seeking a Senior Mechanical Engineer to join our in-space transportation programs. You will design spacecraft hardware, perform analyses, and lead testing, collaborating with structural and thermal teams to ensure reliability in launch environments.

The role requires CAD with SolidWorks and experience with space hardware; domestic travel is minimal. A BS in Mechanical Engineering and 5–10 years of relevant experience are typical qualifications.

Qualifications

• Detail design of mechanical hardware.
• Defining requirements for mechanical systems.
• Familiarity with space environment and materials.

Responsibilities

• Design spacecraft components including primary structure, brackets, enclosures.
• CAD modeling in SolidWorks; use of Duro PLM.
• Route plumbing lines for propellant feed and thrusters.
• Coordinate with structural analysts on loads and integrity during launch.
• Coordinate with thermal analysts to maintain acceptable temperatures.
• Conduct mechanical testing: vibration, static, shock.
• Support TVAC testing as needed.

Skills

Detail design

Mechanical requirements

Space environment

Material selection

Spacecraft loads

Independent work

Technical communication

Written and verbal comms

Education

BS in Mechanical Engineering or Engineering Mechanics

Tools

CAD

SolidWorks

Duro PLM

Job description

Momentus in San Jose, CA is seeking a Senior Mechanical Engineer to join our in-space transportation programs. You will design spacecraft hardware, perform analyses, and lead testing, collaborating with structural and thermal teams to ensure reliability in launch environments.

The role requires CAD with SolidWorks and experience with space hardware; domestic travel is minimal. A BS in Mechanical Engineering and 5–10 years of relevant experience are typical qualifications.