Build Engineer - Tooling

Overview

Hermeus is a venture capital-backed aerospace and defense technology company 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.

• Design and build novel tooling, fixtures, and integration aids using CAD software to support R&D activities, prototype builds, and test campaigns.
• Collaborate with structural, manufacturing, and test engineers to define tooling requirements for one-off and low-rate development programs.
• Partner with internal and external machine shops to rapidly fabricate prototypes, with a focus on agility, adaptability, and proof-of-concept demonstration.
• Explore and evaluate emerging fabrication methods and advanced materials (e.g., additive manufacturing, composites) to push the boundaries of tooling performance.
• Conduct tooling trials, experiments, and validations to inform design refinements and accelerate technology maturation.
• Continuously identify opportunities to simplify, automate, or improve prototype tooling to enhance speed, accuracy, and repeatability in R&D workflows.
• Provide innovative solutions to complex integration and assembly challenges, often where no precedent exists.
• Develop and maintain clear documentation of CAD models, experimental data, and usage guidelines to support knowledge transfer and future scaling.
• Ensure all tooling meets ergonomic, safety, and operational requirements appropriate for development environments.
• Act as a bridge between engineering and prototype build teams, resolving tooling-related issues quickly to keep R&D milestones on track.

• Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, or a related field.
• 3+ years of experience in tooling or structural design, prototype development, or mechanical systems engineering within aerospace, automotive, or a related industry.

• Hands-on experience with prototype fabrication methods including machining, additive manufacturing, composites, and rapid prototyping.
• Proficiency in CAD software (e.g., CATIA, Solid Works, NX) for tooling design and iteration.
• Knowledge of GD&T and ability to interpret and apply engineering drawings to prototype development.
• Familiarity with R&D environments and early-stage design-build-test cycles for high-performance aerospace systems.
• Strong problem-solving skills, with the ability to experiment, adapt, and iterate quickly in ambiguous development settings.
• Excellent communication skills with the ability to collaborate across engineering, prototype build, and test teams.
• Knowledge of lean prototyping and continuous improvement principles in low-volume, experimental environments.

$110,000 - $180,000 a year

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.