Staff/Senior Mass Properties Engineer

ELECTRA; Manassas (VA); On-site; USD 110,000 - 155,000; Full time

Benefits offered by this job

Advanced degree preferred

NX modeling

TeamCenter PDMS

FARs knowledge

US Person preferred

Job summary

Electra is seeking a Staff/Senior Mass Properties Engineer in Manassas, VA to support the EL9 program. You will help develop weight, balance and mass properties data, perform CG and inertia calculations, and drive processes across the company.

This role emphasizes independent execution, strong communication, and teamwork. Ideal candidates bring 5–10 years of mass properties experience, familiarity with industry practices, and the ability to coordinate with SMEs and design teams.

Qualifications

• 5-10 years of mass properties experience.
• Experience with industry recommended mass properties practices.
• Strong work ethic and ability to independently execute responsibilities.
• Excellent organization and communication skills.
• US Person preferred.

Responsibilities

• Support mass properties control and management for the EL9 program.
• Develop weight estimates to support design proposals and prototyping.
• Develop current and forecasted weight, balance, and mass properties data.
• Perform estimation, calculation, and measurement/verification of mass, center of gravity, and inertias of components, assemblies and completed systems.
• Develop mass properties processes and tools to be implemented across Electra.
• Coordinate with SMEs across the program to understand weight impacts of design decisions.
• Support the development and presentation of weight status to design teams and program leadership.
• Review and support detail and installation drawing release processes.
• Excellent written/verbal communication skills and enjoys working in a team environment.

Skills

Mass properties

Weight estimation

Design verification

Communication skills

Teamwork

Documentation

Education

B.S. in STEM discipline

Tools

NX modeling

TeamCenter PDMS

Job description

At Electra, we’re building the EL9 — a nine-passenger, hybrid-electric aircraft that takes off and lands in 150 feet. Our Ultra Short technology unlocks thousands of new operating locations and enables what we call Direct Aviation: quiet, point-to-point regional travel that gets people from where they are to where they want to go, without the congestion of major airports or the noise of conventional aviation.

A global company, headquartered in Manassas, VA, Electra is backed by Lockheed Martin, Honeywell, and Safran, has filed for FAA Part 23 type certification, and carries 2,000+ intent to purchase from operators worldwide. We’re a team of ~100 people moving fast toward first EL9 test flights in 2027 and certification by late 2029 or 2030. Every hire matters at this stage — and this role is no exception.

The Role

Electra is seeking a Staff/Senior Mass Properties Engineer to support the development of our EL9 Ultra Short aircraft. This is an incredible opportunity to make a direct impact on a cutting‑edge development program.

What You’ll Do

• Support the mass properties control and management execution across for the EL9 program.
• Conduct advanced design weight estimation to develop preliminary weight estimates to support advanced design proposals, prototyping efforts, trade studies, etc.
• Develop current and forecasted weight, balance, and mass properties data.
• Perform estimation, calculation, and measurement/verification of mass, center of gravity, and inertias of components, assemblies and completed systems.
• Develop mass properties processes and tools to be implemented across Electra.
• Coordinate with SMEs across the program to understand weight impacts of design decisions.
• Support the development and presentation of weight status or technical data to design teams and program leadership.
• Review and support detail and installation drawing release processes.
• Excellent written/verbal communication skills and enjoys working in a team environment.

What You Bring

• B.S. in STEM discipline.
• 5- 10 years of mass properties experience.
• Experience with applicable industry recommended mass properties practices.
• A strong work ethic and ability to independently execute the areas described by the responsibilities and essential functions.
• Excellent organization and communication skills.
• Other duties as assigned.

Bonus Points

• Advanced degree preferred.
• Experience with 3D solid modeling software applications (preferably NX) and product data management tools (TeamCenter).
• Demonstrated knowledge of the Federal Aviation Regulations (FARs), certification procedures (especially Part 23), and relevant industry standards.
• US Person Preferred.

This range reflects the anticipated hiring range across all eligible locations; actual compensation is determined based on your relevant experience, skills, and geographic location. Total compensation includes performance bonus and comprehensive benefits.

Compensation Range

$110,000 - $155,000 USD

What We Offer

• Competitive salary and equity
• Medical, dental, and vision insurance; STD, LTD, and life insurance
• Generous PTO, sick leave, and company holidays
• Paid winter break
• 401(k) with immediate vesting
• Free catered lunches, coffee, snacks, and drinks at our Manassas headquarters
• Free on-site parking

Electra is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, or any other characteristic protected by law. This position may be subject to ITAR requirements.