---
title: 'Staff Engineer, Mass Properties - Ranger (R6353) at Shield AI'
canonical: 'https://feeny.ai/job/staff-engineer-mass-properties-ranger-r6353-shield-ai-seattle-jrvhg42hax45'
type: 'job'
last_seen: '2026-11-07'
---

# Staff Engineer, Mass Properties - Ranger (R6353) at Shield AI

- **Company:** Shield AI
- **Location:** Seattle, WA
- **Compensation:** $170k–$260k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-20
- **Last confirmed live:** 2026-11-07
- **Apply:** https://jobs.lever.co/shieldai/69fe6764-6c4f-4549-8f9a-a704136ae360

## Job description

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.

Job Description: As a Mass Properties Engineer for Ranger, you will play a critical role in the development and optimization of autonomous aircraft systems, ensuring precise mass properties tracking and analysis throughout the product lifecycle. Your expertise will support aircraft performance trade studies, loads development, structural analysis, cost analysis, and mission effectiveness evaluations. This role is essential in driving the success of Shield AI’s next-gen autonomous vehicles, ensuring they meet stringent weight, balance, and efficiency requirements.

What you'll do:

- Lead and participate in system-level trade studies to optimize payload, propulsion, power distribution, thermal management, and flight dynamics.
- Conduct mass properties estimation for early-stage designs, prototyping, and full-scale production.
- Estimate, calculate, and verify weight, center of gravity, and inertia properties for components, assemblies, and complete aircraft systems.
- Develop and refine analysis tools and methods for mass properties estimation and optimization.
- Generate and maintain mass properties reports for engineering, manufacturing, and leadership teams.
- Implement and execute mass properties verification tests to validate design assumptions.
- Collaborate with cross-functional teams including aerodynamics, structures, avionics, propulsion, and manufacturing to ensure mass properties are controlled throughout development.
- Maintain and update the mass properties database to track weight trends across vehicle programs.

Required qualifications:

- B.S. in Aerospace Engineering, Mechanical Engineering, Material Science/Engineering, or related field.
- 3+ years of experience in mass properties analysis within aerospace, defense, or high-tech vehicle development.
- Proficiency in CAD software (SolidWorks, Siemens NX, or similar).
- Familiarity with mass properties industry standards (ATA100, SAWE RP A-7, RP 7, RP 8, or predecessors).
- Experience defining mass properties requirements and ensuring compliance across design iterations.
- Experience developing and maintaining a Mass Properties Management and Control Plan.
- Strong organizational skills and attention to detail.

## #LI-AD6

#LD

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 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.

## About Shield AI

## Company Overview
- **One-liner**: Shield AI builds AI pilots and autonomous systems for military aircraft to protect service members and civilians.
- **Entity Type**: Private (Series G, venture-backed)
- **Headquarters**: San Diego, California, United States
- **Founded**: 2015
- **Founders**: Brandon Tseng, Ryan Tseng, Andrew Reiter

## Core Business
- Primary industry/industries: Defense technology, artificial intelligence, autonomous systems, aerospace
- Target customers: U.S. Department of Defense, allied nations’ military forces (B2G / Government)
- Mission or purpose statement: “Protect service members and civilians with intelligent systems.”

## Products & Services
- **Hivemind**: A combat‑tested, modular autonomy stack for aircraft – self‑driving technology for drones, jets, and helicopters. Includes path‑planning, mapping, state‑estimation, computer vision, and reinforcement learning. Type: Software (AI/autonomy).
- **V‑BAT**: A vertical take‑off and landing (VTOL) unmanned aerial system (UAS) designed for persistent ISR and strike missions. Type: Hardware (drone).
- **X‑BAT**: An advanced unmanned aircraft system with extended endurance and payload capacity, built for multi‑domain operations. Type: Hardware (drone).
- **Hivemind Vision Systems**: Computer‑vision and sensor‑fusion capabilities integrated into Hivemind for GPS‑denied environments. Type: Software + sensors.
- **Hivemind Enterprise**: A deployable version of Hivemind for third‑party platforms and commercial applications. Type: Software.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (private company). Total funding raised: $3.6B (as of Series G in March 2026).
- **Key Metric**: Annual Revenue ~$21.7M (estimated, private) | Total Funding $3.6B (including $2B Series G led by JP Morgan Chase and Advent International, March 2026).
- **Notable Investors/Partners**: JP Morgan Chase, Advent International, Blackstone, Riot Ventures, SnowPoint Ventures, Disruptive (55+ investors total). Strategic partners include U.S. DoD and allied defense forces.
- **Growth Signals**: Headcount grew 68.3% YoY to 1,283 employees; 338 active job postings (+57.2% YoY); operates in 5 countries (U.S., Australia, UAE, Norway, Ukraine); recent acquisitions of Sentient Vision Systems (2024), Heron Systems, MARTIN UAV.

## Competitive Advantages
- **Combat‑proven autonomy**: Hivemind has been tested in live military operations, providing a first‑mover advantage in contested, GPS‑denied environments.
- **Full‑stack integration**: Combines software (AI pilot), hardware (V‑BAT, X‑BAT), and sensor systems, creating a tightly integrated product ecosystem.
- **Cross‑functional engineering culture**: Engineers work across AI, robotics, aerospace, and defense – not siloed – enabling rapid iteration and field deployment.
- **Top talent pipeline**: Employees drawn from Lockheed Martin, Northrop Grumman, Raytheon, Amazon, Anduril, and other leading defense/tech firms.

## Strategic Focus
- **Scale AI pilots across all domains**: Extend Hivemind from aircraft to ships, satellites, and ground vehicles (“every military asset”).
- **International expansion**: Growing presence in Australia, Europe, and Middle East via mission autonomy centers and partnerships.
- **Deepen autonomy stack**: Continued investment in reinforcement learning, simulation, and computer vision to maintain leadership in contested‑environment autonomy.

## Why Work Here
- **Mission‑driven work**: Directly contribute to protecting service members and civilians with cutting‑edge AI and robotics.
- **Cross‑functional teams**: Engineers collaborate across disciplines (AI, hardware, software, systems) on real‑world defense challenges.
- **Benefits**: Excellent medical coverage, mental health EAP, paid parental leave, pet insurance, flexible work hours, gym discounts (SD) / on‑site gym (DC), free parking, competitive compensation, 401k with match, stock benefits.
- **Work policy**: Flexible work hours; some offices (e.g., San Diego HQ, Arlington, DC) have on‑site facilities. Remote/hybrid options available depending on role.
- **Growth trajectory**: Rapidly scaling (68% headcount growth) with hundreds of open roles across engineering, operations, and program management.

## Sources
1. [shield.ai/about](https://shield.ai/about/)
2. [shield.ai/careers](https://shield.ai/careers/)
3. [LinkedIn – Shield AI](https://www.linkedin.com/company/shield-ai)
4. [CBInsights – Shield AI](https://www.cbinsights.com/company/shield-ai)
5. [Lever – Shield AI Jobs](https://jobs.lever.co/shieldai)

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- [Autonomy Engineer, Technical Documentation](https://feeny.ai/job/autonomy-engineer-technical-documentation-shield-ai-san-diego-97g67v4ys3n9) — San Diego, CA
- [Director, Systems Engineering & Architecture - Hivemind Enterprise](https://feeny.ai/job/director-systems-engineering-architecture-hivemind-enterprise-shield-ai-san-z1zb7g7vsm3y) — San Diego, CA
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- [Senior Executive Recruiter - G&A (R6520)](https://feeny.ai/job/senior-executive-recruiter-g-a-r6520-shield-ai-remote-snsx3nvzjs9y)
- [Senior Executive Recruiter - Hivemind (R6523)](https://feeny.ai/job/senior-executive-recruiter-hivemind-r6523-shield-ai-remote-mmd5bjrh5ehm)
- [Senior Executive Recruiter - Aircraft (R6521)](https://feeny.ai/job/senior-executive-recruiter-aircraft-r6521-shield-ai-remote-w5x8jyftv460)
- [Sr. Director, Global People Operations](https://feeny.ai/job/sr-director-global-people-operations-shield-ai-seattle-6xtw6kzm9trf) — Seattle, WA