Build Engineer - Propulsion

Hermeus is a venture capital-backed aerospace and defense technology company. The business is focused on building high-speed products that sustainably deliver asymmetric advantage to the Department of Defense and allied partners. Utilizing an iterative development approach to aircraft, Hermeus’ high-Mach and hypersonic aircraft aim to deliver capabilities at a pace not seen in the U.S. since the 1950s.

This role sits at the intersection of engineering design, manufacturing, integration and test for flight vehicles. You'll be embedded with design and production teams, owning everything from hardware design, tooling, testing and flight readiness to process development and vehicle assembly. We are hiring entry-level through senior-level.

• Lead detailed project planning and drive hardware delivery on aggressive timelines.
• Collaborate directly with high level design concepts turning them into detailed designs including final geometry, material selection and DFM.
• Drive the transition from prototype to production for complex aerospace assemblies.
• Ruthlessly question process complexity—delete parts, eliminate waste, simplify flow.
• Design and implement full-stack build processes—factory layout, tooling, test flow, and vehicle integration.
• Develop and run test procedures for flight hardware.
• Serve as a force multiplier across production, test, and design teams.

• Strong engineering first principles.
• Bachelor's degree in mechanical, aerospace, manufacturing, or related engineering field.
• Hands-on experience with physical hardware (internships, labs, project teams all count).
• Proven ability to design, build, break, and iterate quickly.
• Comfort with CAD, test equipment, hand tools.
• Familiarity with manufacturing processes (machining, welding, forming, etc.) and GD&T fundamentals.

• Designed and released flight hardware.
• Familiarity with Siemens Teamcenter and NX.
• Leadership experience on project teams or in mentorship roles.
• You’ve built something that’s flown, broken, or both.
• Experience standing up production lines or test infrastructure in a fast-paced environment.

• Must be available to work extended hours and/or weekends as needed to support critical milestones.
• Must be willing to travel to test sites, other Hermeus offices, and partner locations as needed (up to 25% travel)

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 by 22 C.F.R. § 120.62 or 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.

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.