Staff Mechanisms Engineer

Triwill Group; California (MO); On-site; USD 161,000 - 221,000; Full time

Job summary

Inversion seeks a Staff Mechanisms Engineer in Playa Vista, CA to own cradle-to-grave development of mission-critical mechanisms for our next-generation reentry vehicle.

You will drive mechanical system architecture, perform first-principles analysis, and collaborate with structures, avionics, propulsion, TPS, and GNC to ensure seamless integration of mechanical assemblies into flight hardware. In-office presence is required at headquarters.

Qualifications

• Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, or related field.
• Typically 8+ years designing, analyzing, and testing mechanisms and moving mechanical assemblies for aerospace/defense.
• Strong mechanical design skills with proficiency in 3D CAD (NX, CATIA, SolidWorks).
• Experience with structural and thermal analysis using FEA tools (ANSYS, Abaqus, NASTRAN).
• Experience designing for harsh environments (vacuum, extreme temperatures, shock, vibration).
• Proficiency in engineering drawings with GD&T and technical documentation.
• Excellent verbal and written communication skills.
• Master’s degree and startup experience are a plus.

Responsibilities

• Design and develop flight-critical mechanisms from concept to flight qualification.
• Perform structural and thermal analysis to validate designs for spaceflight environments.
• Lead test campaigns: functional, environmental, life-cycle, acceptance testing.
• Create detailed drawings and interface control documents for hardware.
• Collaborate with manufacturing and integration teams to build and iterate hardware.
• Lead design reviews and present technical trade studies for component selection.
• Coordinate with suppliers for procurement and schedule adherence.
• Support vehicle integration activities during assembly, test, and launch.

Skills

Strong mechanical design

3D CAD proficiency

FEA analysis

Engineering drawings

Verbal and written communication

Adaptability in fast-paced env

Education

Bachelor’s degree in Aerospace or Mechanical Engineering

Master’s degree (desirable)

Tools

NX/CAD software

CATIA/SolidWorks

FEA tools (ANSYS/Abaqus/NASTRAN)

Job description

Turning Space into a Transportation Layer for Earth

Who We Are:

Inversion builds advanced reentry systems to deliver next-generation capabilities from space.

Our mission is to make Earth radically more accessible by turning Low-Earth Orbit into an on-demand logistics domain. We see space not as a destination, but as a platform — one that unlocks unprecedented speed and global reach.

Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour, operating through extreme reentry conditions and landing with high precision. These systems open the door to new ways of testing, delivering, and operating at hypersonic speeds.

Inherently dual-use, our technology is built to meet urgent national security needs while laying the groundwork for future commercial applications. Backed by leading investors including Y Combinator, Spark Capital, and Lockheed Martin Ventures, and working with partners such as the U.S. Space Force and NASA, Inversion is pushing the boundaries of what’s possible in space-based defense and logistics.

What You\'ll Do

As a Staff Mechanisms Engineer at Inversion, you will own cradle to grave development of mission-critical mechanisms on one of the most capable reentry vehicles ever developed. You’ll drive mechanical system architecture and collaborate with stakeholders across structures, avionics, propulsion, TPS, and GNC to ensure seamless integration of the mechanical assemblies into our next-generation vehicles.

This role demands a hands-on engineer who can fluidly move between high-level system architecture, detailed design work, first-principles analysis, hardware testing, and cross-functional collaboration. You will own designs from initial concept through qualification and into production. You will be a key member of the Mechanical team, reporting to the Director of Mechanical.

Key Responsibilities

• Design and develop flight-critical mechanisms including actuators, deployment mechanisms, separation systems, and cartridge actuated devices from concept through flight qualification
• Perform detailed structural and thermal analysis using FEA and analytical methods to validate designs against hypersonic and spaceflight environments
• Develop and execute comprehensive test campaigns including functional testing, environmental qualification (vibration, shock, thermal, TVAC, EMI/EMC), life cycle testing, and acceptance testing
• Create detailed engineering drawings, assembly procedures, interface control documents (ICDs), and design specifications
• Work hands-on with manufacturing and integration teams to build, troubleshoot, and iterate hardware rapidly
• Drive design reviews and present technical trade studies to inform architecture and component selection decisions
• Coordinate with suppliers and vendors for custom component procurement, ensuring adherence to schedule and technical requirements
• Support vehicle integration activities and provide technical expertise during assembly, test, and launch operations

Required Qualifications

• Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, a related field, or equivalent technical experience
• Typically 8+ years of professional experience designing, analysising, and testing mechanisms and moving mechanical assemblies (MMA) for aerospace, defense, or similarly demanding applications
• Strong mechanical design skills with proficiency in 3D CAD software (NX, CATIA, Solidworks, or similar)
• Hands-on experience with structural and thermal analysis using FEA tools (ANSYS, Abaqus, NASTRAN, or equivalent)
• Demonstrated ability designing for harsh environments including vacuum, extreme temperatures, shock, and vibration
• Deep understanding of mechanical systems including mechanisms, actuators, fasteners, bearings, seals, and material properties
• Experience with environmental testing (shock, vibration, TVAC) and qualification programs for spaceflight hardware
• Proficiency creating detailed engineering drawings with GD&T and other technical documentation
• Demonstrated excellent verbal and written communication skills
• Proven ability to work effectively in a fast-paced environment

Desired Qualifications

• Master’s degree in Aerospace Engineering, Mechanical Engineering, a related field, or equivalent experience
• Experience with spacecraft and aerospace mechanisms such as deployment systems, control surfaces, separation mechanisms, solar array drives, gimbal systems, or cartridge actuated devices
• Familiarity with propulsion system components including valves, pressure vessels, feed systems, and fluid interfaces
• Experience supporting prototype builds and rapid design iteration in a hardware-rich environment
• Prior work in fast-paced startup environments or small multidisciplinary teams

Our office headquarters is located in Playa Vista, CA. This position requires in office presence.

The California annual base salary for this role is currently $161,000 - $221,000. Pay Grades are determined by role, level, location, and alignment with market data. Individual pay will be determined on a case-by-case basis and may vary based on the following considerations: interviews and an assessment of several factors that are unique to each candidate, job-related skills, relevant education and experience, certifications, abilities of the candidate and internal equity.

ITAR Compliance: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.

Equal Employment Opportunity: Inversion provides equal employment opportunities to all employees and applicants without regard to race, color, religion, age, sex, gender identity, sexual orientation, national origin, veteran status, or disability.

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