Posted by the employer · Seattle, United States
Lead Mechanical Engineer - Hardware Test - X-BAT
Shield AI · Seattle · United States
Posted: 9/25/2026 · On the employer's job feed since 10/11/2026
The advert
Quoted in full from Shield AI's job posting. Gavroche does not edit it.
About Shield AI
Shield AI develops AI-powered autonomy software and aircraft systems that protect service members and civilians by enabling intelligent operations in contested environments. As part of the X-BAT program, you will help develop and validate next-generation autonomous aircraft and mission-critical hardware that must perform reliably in demanding operational conditions.
Job Description:
Shield AI is seeking a Lead Mechanical Engineer, Hardware Test to lead the design and development of mechanical test infrastructure that enables rapid, rigorous validation of X-BAT hardware. This role will own the mechanical side of hardware testing, from concept through deployment, by building robust test stands, fixtures, and support equipment for engineering and production-level test activities.
The ideal candidate is a strong technical leader who can manage a small team, establish sound engineering processes, and drive execution in a fast-paced hardware environment. Success in this role requires hands-on experience with mechanical design, fixture development, analysis, fabrication support, and cross-functional coordination in support of complex aerospace hardware test programs.
What you'll do:
- Lead a team of mechanical engineers in designing, building, and maintaining X-BAT hardware test stands and fixtures that support subsystem, integration, and qualification testing.
- Perform core people-lead responsibilities, including work planning, technical direction, regular 1:1s, coaching, feedback, and performance development for the team.
- Own requirements gathering, concept development, detailed design, and validation of multiple test stands used to evaluate X-BAT hardware and supporting subsystems.
- Design fixtures, tooling, structural support hardware, and mechanical systems for engineering and production-level test applications.
- Perform mechanical analyses such as hand calculations and FEA-informed assessments for strength, stiffness, thermal behavior, durability, and safety.
- Define and apply industry-standard mechanical engineering practices, including GD&T, tolerance analysis, DFM/DFA, design reviews, release documentation, and configuration discipline.
- Partner with test, electrical, avionics, manufacturing, and technician teams to integrate test hardware that is safe, repeatable, maintainable, and efficient to operate.nyc+1
- Support fabrication and build activities by working closely with internal shops and external vendors to release, procure, assemble, and iterate hardware quickly.
- Drive troubleshooting and root-cause investigations when test hardware or units under test do not perform as expected and implement corrective design improvements.
- Build team processes, documentation habits, and execution rhythms that improve quality, speed, and ownership across the hardware test function.
Required qualifications:
- B.S. in Mechanical Engineering or a related STEM discipline; advanced degree is a plus.
- Proven experience as a senior or lead mechanical engineer developing fixtures, tooling, or test stands for aerospace, defense, robotics, or other complex hardware systems.sf+1
- Prior experience leading engineers and building high-performing teams, including mentoring, setting expectations, and driving accountability.
- Strong mechanical design fundamentals with the ability to take concepts through analysis, detailed design, fabrication, assembly, and checkout.
- Proficiency with industry-standard CAD tools such as NX, SolidWorks, or CATIA, and experience releasing drawings for manufacture.
- Familiarity with standard ME practices, including tolerance stack-up, materials selection, fastener design, load path evaluation, and safe machine/fixture design.
- Hands-on experience in lab, prototype, or production environments, with the judgment to balance analytical rigor and practical execution.
- Excellent communication skills and the ability to work across disciplines to translate ambiguous test needs into robust mechanical solutions.
- Demonstrated ownership, strong work ethic, and a track record of improving processes, raising the bar, and delivering results under schedule pressure.
Preferred qualifications:
- Experience with propulsion or engine-related test equipment, high-load structural fixtures, or mechanically complex aerospace ground test systems.
- Familiarity with environmental or qualification testing and the facility interfaces those systems require, such as mounting, cooling, plumbing, or instrumentation accommodations.
- Experience using analysis tools such as ANSYS, Abaqus, or Nastran to support test hardware design decisions.
- Comfort working directly with technicians, machine shops, and test operators to refine designs and improve ease of use in the lab.
- Ability to operate effectively in a fast-moving development program where priorities evolve and rapid iteration is expected.
Similar roles in Seattle
- Design Engineer · MacDonald-Miller Facility Solutions, Seattle
- Aerostructures Design Engineer II - R5156 · Shield AI, Seattle
- Staff Mechanical Engineer - Systems Integration - R5902 · Shield AI, Seattle
- Principal ASIC Physical Design Engineer · K2 Space, Seattle
- Principal ASIC Package Design Engineer · K2 Space, Seattle
- Senior Propulsion Design Engineer - R4641 · Shield AI, Seattle
200 open mechanical engineer roles found; at most three per employer shown. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct.
How mechanical engineer roles in United States are worked
0% fully remote · 7% hybrid · 93% on-site
From 204 adverts whose ATS states a work mode. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct; the employers' own work-mode flags (adverts without one count as on-site).
New roles in Seattle, last 12 weeks
- 7/20/2026 19
- 7/27/2026 33
- 8/3/2026 34
- 8/10/2026 38
- 8/17/2026 41
- 8/24/2026 40
- 8/31/2026 72
- 9/7/2026 59
- 9/14/2026 97
- 9/21/2026 106
- 9/28/2026 88
- 10/5/2026 90
717 vacancies. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct; vacancies by their own publication week.
Other roles at Shield AI
- Engineer I - Simulation Framework - R6203 · San Diego
- Senior Software Engineer - Autonomous Pilot Integration - R5423 · San Mateo
- Staff Engineer - Software - Autonomous Aircraft Integration - R4983 · Boston
- Perception Engineer - Multimodal & Embodied AI - R6022 · San Diego
- Senior Engineer - Platform Infrastructure - R5516 · Dallas
- Senior Engineer - System Integration Test - R6086 · San Diego
463 open. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct.