Senior Mechanical Engineer

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

As an early mover in the in-space transportation and infrastructure services, Momentus is at the forefront of the commercialization of space. With an experienced team of aerospace, propulsion, and robotics engineers, Momentus has developed a cost-effective and energy-efficient in-space transport system.

OUR PEOPLE

Daring problems require daring solutions. We boldly charge into uncharted territory knowing that no matter the outcome we will benefit from the journey and move closer to our goals no matter what. Our teams know that working at Momentus means more than building innovative technology, it means creating entirely new markets in the space economy. We are level-headed, business-minded strategic thinkers intent on providing immediate value to our customers today while simultaneously preparing for the vast possibilities of the future. If this sounds like you, we should talk.

JOB SUMMARY

The Senior Mechanical Engineer will participate in the mechanical, structural, and thermal design of flight spacecraft and will follow programs through execution of assembly, integration, and test. The ideal candidate should be accustomed to working in a fast-paced environment and quickly adapting to new challenges.

Key Responsibilities

• Mechanical design of spacecraft components including primary structure, support structure, brackets, electronics enclosures, bulkheads, wire harness, and more.
• Design of components and assemblies in CAD. Solidworks. Duro PLM.
• Routing of plumbing lines for propellant feed system and thrusters.
• Work with structural analysts to ensure structural integrity of the spacecraft and all components during all phases of launch.
• Work with thermal analysts to ensure all components are maintained within acceptable temperature limits.
• Conduct mechanical testing of systems and components including vibration testing, static load testing, and shock testing.
• May be asked to support TVAC testing on an as-needed basis.

Required Skills and Experience

• Demonstrated experience with detail design of mechanical hardware.
• Experience defining requirements for mechanical systems and components.
• Familiarity with the space environment and how it affects mechanical hardware.
• Familiarity with material selection and material coatings for space applications.
• General understanding of spacecraft structural loads (quasi-static loads, random vibration, shock, thermo-mechanical)
• Ability to work independently.
• Excellent technical communications skills.
• Good written and verbal communications skills.

Desired Skills and Experience

• Experience designing, manufacturing, and testing space hardware with demonstrated on-orbit success.
• Experience running TVAC tests.
• Thermal and fluidic analysis experience is a strong asset.

Education & Work Experience

• BS in Mechanical Engineering or Engineering Mechanics
• 5-10 years relevant experience.

Compensation:

Annual Base Salary Range: $145,000 - $175,000/per year

Base pay is one part of our total compensation package (base+bonus+equity) and is determined within a range. Your actual base salary will be determined on job-related knowledge and skills, education, and experience. Our benefit plans include medical, dental, and vision insurance, 401k retirement plan, short and long term disability and life insurance. We also offer flexible PTO, along with 11 paid holidays, sick time and paid parental leave.

This is a full-time position in San Jose, California. This position requires access to export-controlled commodities, technical data, technology, software, and services. U.S. citizenship, U.S. legal permanent resident status, or protected person status under 8 U.S.C. § 1324b(a)(3) is required.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Momentus Space LLC’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.