Staff Engineer, Fluid and Mechanical Systems - Ranger (R6379)
- Salary
- USD 170,000 - 255,000 / per-year-salary
- Level
- Staff
- Work type
- On-site · Seattle
Not stated in the posting: visa.
Open. First seen 23 October 2026.
About the role
Shield AI's standard text
Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube.
As a Staff Fluid and Mechanical Systems Engineer, you will be a hands-on multi-disciplinary owner of fluid-system layouts, thermal transport hardware, and adjacent mechanical design for a Group 5 UAV fighter aircraft. You will apply first-principles engineering to develop ram-air circuits, liquid cooling systems, ECS/TMS fluid architecture, and supporting mechanical installations that are buildable, maintainable, and ready for vehicle integration. This position requires a balance of technical rigor, rapid decision-making, and hands-on engineering to efficiently transition concepts into operational capability.
The ideal candidate is comfortable solving complex problems, taking ownership, working within an accelerated aircraft development environment, and is motivated by getting meaningful capability into the hands of operators quickly.
REQUIRED QUALIFICATIONS:
- Experience: 6+ years of fluid systems design, thermal systems analysis, or mechanical systems installation experience in aerospace or a comparable regulated industry.
- Education: B.S. or M.S. in Mechanical Engineering, Aerospace Engineering, or a related technical discipline.
- Core Fundamentals: Deep mastery of thermodynamics, fluid dynamics, heat transfer, mechanical design fundamentals, and tolerance stack-up methodologies.
- Modeling and Analysis: Demonstrated capability with fluid system sizing and analysis, including pressure drop, flow networks, heat transfer, and 1D fluid or thermal system modeling.
- System Layout and Integration: Demonstrated ability to create fluid-system layouts and mechanical installations that satisfy routing, packaging, maintainability, structural-interface, and vehicle-integration requirements.
- CAD and PLM: Experience in 3D CAD modeling, routing, layouts, and drawing release with Siemens NX, CATIA, Creo, SolidWorks, or equivalent PLM workflows.
- Mechanical Design: Hands-on capability designing brackets, mounts, supports, and installation hardware using hand calculations, tolerance analysis, and basic structural analysis.
- Hardware and Supplier Execution: Proven track record sourcing COTS/custom aerospace components, driving suppliers to schedule, and assembling benchtop or vehicle-level test setups.
- Autonomy: Demonstrated ability to self-direct, prioritize technical tasks without oversight, and deliver functional hardware under tight timelines.
PREFERRED QUALIFICATIONS:
- Aircraft ram-air, liquid cooling, hydraulic, fuel, or thermal transport loop design experience.
- ECS or thermal management system design and integration experience.
- Experience with electro-mechanical or electro-hydrostatic actuation systems and associated mechanical installations.
- Familiarity with MIL-STD-810, MIL-HDBK-516, and airworthiness verification planning for fluid and mechanical systems.
- Hands-on prototype-build, fabrication, or mechanical assembly experience in a rapid R&D environment.
- Eligible to obtain a Secret clearance.
Full-time regular employee offer package:
Pay within range listed + Bonus + Benefits + Equity
Temporary employee offer package:
Pay within range listed above + temporary benefits package (applicable after 60 days of employment)
Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information.
Shield AI's standard text
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Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know.
What this role asks for
78% of this description is written for the role. The rest is Shield AI's standard text, folded away below.
Compared with Shield AI's other open jobs.
The team: X-BAT Engineering - Mechanical HIRES STEADILY
This role is one of 33 open in X-BAT Engineering - Mechanical. 14 were posted in the last 30 days and the oldest in November: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
FEA (12 of 33), CATIA (10 of 33), GD&T (9 of 33), Siemens NX (9 of 33), SolidWorks (9 of 33), Python (6 of 33), ANSYS (5 of 33)
OTHER ROLES ON THIS TEAM
- Staff Engineer, Aircraft Thermal Systems - Ranger (R6351) posted Oct 20
- Senior Staff Engineer, Environmental Control Systems - Ranger (R6350) posted Oct 20
- Staff Engineer, Actuated Systems - Ranger (R6347) posted Oct 19
- Senior Staff Engineer, Flight Control Actuation Systems - Ranger (R6327) posted Oct 18
- Senior Staff Engineer, Mechanical & Actuated Systems (R6307) posted Oct 18
- Manager, Environmental Control Systems & Thermal Engineering (R6306) posted Oct 18
- Engineer I, Mechanical (R6302) - New Grad posted Oct 17
- Staff Technician, Mechanical Test posted Oct 16
- EWIS Harness Design - Engineer I posted Oct 16
- Staff Engineer, Landing Gear Systems - Ranger (R6294) posted Oct 15
- Principal Thermal Engineer - Aircraft Avionics & Thermal Systems (R3930) posted Oct 13
- Engineer II, Avionics Thermal Engineering (R5298) posted Oct 13
- Technician II, Mechanical Test (R6165) posted Oct 3
- Staff Engineer, Electromechanical (R6043) posted Sep 23
- Staff Technical Program Manager, Air Vehicle Systems (R6044) posted Sep 22
- Principal Engineer, Fluid & Thermal Systems (R5620) posted Sep 11
- Director, Mission Systems posted Sep 11
- Engineering Manager, Air Vehicle Mechanical Systems (R5391) posted Aug 18
- Staff Engineer, Mechanical Test (R5475) posted Aug 3
- Staff Engineer, Mechanical & Actuated Systems (R5293) posted Jul 30
- Senior Engineer, Avionics Thermal Engineering (R5298) posted Jul 9
- Senior Vibrations Test Engineer (R5091) posted Jun 30
- Senior Engineer, Air Vehicle Fluid Systems (R5203) posted Jun 17
- Senior Manager, Mechanical Engineering - Avionics (R4416) posted Jun 12
- Staff Technician, Air Vehicle Systems (R4892) posted Apr 29
- Senior Engineer, Air Vehicle Fluid Systems (R4891) posted Apr 29
- Senior Engineer, Mechanisms (R4890) posted Apr 29
- Principal Engineer, Fluid & Thermal Systems (R4793) posted Apr 15
- Staff Engineer, Mechanical - Harness Design (R4594) posted Mar 25
- Senior Staff Engineer, Electromechanical (R4583) posted Mar 25
- Senior Staff Engineer, Mechanical Test (R4413) posted Jan 15
- Sr. Staff Thermal Engineer - Aircraft Avionics & Thermal Systems (R3930) posted Nov 14
From the team and dates on Shield AI's own job board.
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