About the Role:
We are seeking a Mid-Career Mechanical Engineer to support the design, build, and test of next-generation aircraft aerostructures, including fuselage, empennage, control surfaces, and landing gear systems. This role is hands-on and execution-oriented, with responsibility for taking hardware from concept through detailed design, fabrication support, and test validation.

Responsibilities:

• Own R&D-focused structural design and development supporting vehicle subsystems such as hydraulics, fuel systems, propulsion, and avionics, with an emphasis on rapid prototyping and iteration
• Perform first-principles structural and thermal analyses using hand calculations and FEA to inform early design decisions and experimental validation
• Execute trade studies across mechanical, fluid, and avionics subsystems focused on performance, mass efficiency, and technical risk reduction
• Design, build, and test prototype hardware, owning development from concept through fabrication, integration, and experimental validation
• Collaborate closely with manufacturing and test teams to transition prototype concepts toward scalable, production-aware designs
• Support hands-on integration, troubleshooting, and test campaigns to quickly iterate and mature hardware
• Present technical findings in internal design reviews and contribute to cross-functional and supplier/customer technical discussions

Requirements:

• Bachelor's degree in mechanical engineering, aerospace engineering, or physics
• 2+ years of experience in mechanical design, analysis, and experimental testing (internships and significant student project experience qualify), preferably in an R&D or prototype environment

Preferred Skills and Experience:

• Strong hands-on experience with rapid prototyping, hardware build, and mechanical assembly of complex systems
• Solid foundation in engineering fundamentals including statics, dynamics, heat transfer, fluid mechanics, and vibration
• Proficiency in CAD (NX preferred), FEA (Ansys preferred), and PLM tools (Teamcenter preferred)
• Experience designing and testing hardware in early development environments, with awareness of design-for-manufacturing and production considerations
• Familiarity with mechanical testing under vibration, fatigue, shock, vacuum, and thermal loads
• Demonstrated ability to collaborate across disciplines (fluids, avionics, manufacturing) to deliver integrated experimental systems
• Proven ownership of technically complex projects from concept through test and iteration

$91,800 - $140,250 a year

Engineer I $91,800 - $112,200

Engineer II $114,750 - $140,250

The salary information provided is a general guideline only. Hermeus takes various factors into account, including, but not limited to, the position's scope and responsibilities, the candidate's professional background, education and training, essential skills, and market and business considerations, when presenting a job offer.

Salary is only one part of our total compensation and benefits package. Hermeus offers competitive salary and equity, unlimited PTO policy, paid parental leave, potential for year-end bonuses, and more!

100% employer-paid health care

401k & Retirement Plans

Unlimited PTO

Weekly Paid Office Lunches

End of Year Bonuses

Fully stocked breakrooms

Stock Options

Paid Parental Leave

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

• Health & Wellness: 100% employer-paid healthcare and pet insurance
• Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
• Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
• Office Perks: Weekly paid office lunches and fully stocked breakrooms

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a "U.S. person" as defined by22 C.F.R. § 120.62or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.