# Senior Engineer, Air Vehicle Fluid Systems (R4891)

**Company:** [Shield AI](https://hotfix.jobs/companies/shield-ai)
**Location:** San Diego, CA, Dallas, TX, Boston, MA
**Role:** Hardware Engineering
**Salary:** $110k – $160k/yr
**Experience:** 5+ years
**Skills:** Nx, Simscape, Amesim, CAD, Dfmea, Fta, Hydraulic Systems, Fluid Systems, Systems Analysis, Supplier Management
**Posted:** 2026-04-29

> Designs liquid cooling and hydraulic fluid systems for jet-engine VTOL military UAV, including components, analysis, sizing, and supplier engagement. Requires 5+ years experience, BS in Mechanical Engineering, strong CAD and fluid analysis skills (Simscape/Amesim).

## Job Description

## Responsibilities
- Design components and fluid systems for liquid cooling and hydraulic fluid systems on X-BAT jet-engine VTOL military UAV platform.
- Engage with suppliers.
- Perform system and component analysis and sizing.
- Own multiple aspects of X-BAT’s fluid systems.

## Required Qualifications
- B.S. in Mechanical Engineering (or equivalent).
- **5+ years** experience with fluid or hydraulic system design, component design, system analysis, supplier management, requirements management.
- Demonstrated ability to execute design, build, test with rigor at speed.
- **Strong CAD skills** (NX preferred).
- Demonstrated proficiency with fluid or hydraulic system analysis, including 1st principles, **Simscape**, **Amesim**.
- Ability to work independently in fast-paced, cross-functional teams.

## Preferred Qualifications
- Experience with environmental and operational robustness (vibration/shock, thermal extremes, contamination, corrosion, sand/dust).
- Experience supporting ground test and flight test campaigns and system checkout, failure investigations.
- Familiarity with reliability and safety methods (**DFMEA/FTA**, fault containment, safe-state thinking).

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