--- title: 'Power System – High-Voltage Test Engineer II – Electric Powertrain & Battery Systems (R4728) at Shield AI' canonical: 'https://feeny.ai/job/power-system-high-voltage-test-engineer-ii-electric-powertrain-battery-systems-heev05ez2wgs' type: 'job' last_seen: '2026-10-17' --- # Power System – High-Voltage Test Engineer II – Electric Powertrain & Battery Systems (R4728) at Shield AI - **Company:** Shield AI - **Location:** Seattle, WA - **Compensation:** $116k–$175k - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-01-21 - **Last confirmed live:** 2026-10-17 - **Apply:** https://jobs.lever.co/shieldai/c03bc781-786f-4bac-9884-4328b98e2534 ## 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: We are growing the Avionics Engineering team to support the development of the X-BAT aircraft. Our team is designing a flight-critical, custom avionics system supporting communications, compute, AI, power, telemetry and other essential aircraft systems. Shield AI is seeking an early-career Test Engineer to support the testing and verification of X-BAT’s battery energy storage, electric motors and high-voltage motor-drive systems. This position will be primarily responsible for setting up, operating, and refining battery storage and/or dynamometer-based test systems used to characterize energy storage, electric machine and motor-drive performance. The role sits at the intersection of electrical, mechanical and test engineering an engineer with strong, directly relevant dynamometer experience. You will partner closely with the Power Systems team and other cross-functional engineering groups throughout design, verification, integration and qualification. This position is based in Seattle, WA. . What you'll do: - Set up and operate dynamometer systems for electric motor and motor-drive testing - Setup and operate battery energy storage systems for testing - Configure instrumentation, sensors, fixtures, harnesses and data-acquisition equipment - Execute test campaigns for electromechanical or electrochemical subsystems, verifying voltage rails, logic levels, performance, thermal behavior and overall functionality - Perform testing, debugging and system-level troubleshooting - Collect and evaluate test data, identify abnormal behavior and communicate findings - Support environmental qualification testing, including temperature, vibration, altitude and humidity - Install, verify, and deploy DC-sources, power converters, test fixtures and harnesses - Assist with the design and buildout of the battery and/or motor-test labs Required qualifications - Associate degree or higher in electrical technology, mechanical technology, mechatronics engineering, electrical engineering, mechanical engineering or a related technical discipline - Hands-on experience with batteries, dynamometers, electric motors, motor drives, powertrain systems, or comparable electromechanical equipment through employment, internships, academic teams, clubs or personal projects - Experience setting up and executing hardware tests using instrumentation, sensors and data-acquisition equipment - Experience troubleshooting systems involving electrical and mechanical components - Familiarity with benchtop electrical equipment such as multimeters, oscilloscopes, power supplies and electronic loads - Ability to read and interpret electrical schematics, wiring diagrams, mechanical drawings and test procedures - Understanding of laboratory safety practices, including the safe operation of high-voltage or high-power equipment - Demonstrated ownership, reliable execution, clear documentation, and effective collaboration with engineers, technicians and cross-functional partners ## #LI-JM2 #LC 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) ## Other roles at Shield AI - [Engineer I, Mechanical (R6302)](https://feeny.ai/job/engineer-i-mechanical-r6302-shield-ai-seattle-75gdhfp3k8nt) — Seattle, WA - [Engineer I, Mechanical Hardware Test](https://feeny.ai/job/engineer-i-mechanical-hardware-test-shield-ai-seattle-009txzdn75eb) — Seattle, WA - [Senior Staff Engineer, Structural Analysis - Ranger (R6300)](https://feeny.ai/job/senior-staff-engineer-structural-analysis-ranger-r6300-shield-ai-seattle-p24f55m9654f) — Seattle, WA - [Staff Engineer, Fuel Systems - Ranger (R6299)](https://feeny.ai/job/staff-engineer-fuel-systems-ranger-r6299-shield-ai-seattle-66cbvba47hb6) — Seattle, WA - [Staff Engineer, Aircraft Configuration Design - Ranger (R6298)](https://feeny.ai/job/staff-engineer-aircraft-configuration-design-ranger-r6298-shield-ai-seattle-942h4whh3a76) — Seattle, WA - [Engineer II, Automated Test (R6288)](https://feeny.ai/job/engineer-ii-automated-test-r6288-shield-ai-san-mateo-9zrnhj6har1p) — San Mateo, CA - [Capture Manager - XBAT - USAF (R6205)](https://feeny.ai/job/capture-manager-xbat-usaf-r6205-shield-ai-remote-wk7cq4qwzr70) - [Manager, Infrastructure (R6154)](https://feeny.ai/job/manager-infrastructure-r6154-shield-ai-san-mateo-ak1zaxmkmbbf) — San Mateo, CA - [Senior Director, Deal Strategy Execution (R6259)](https://feeny.ai/job/senior-director-deal-strategy-execution-r6259-shield-ai-washington-jjc8weakxqa7) — Washington, DC - [Staff Engineer, Modelling and Simulation (R6248)](https://feeny.ai/job/staff-engineer-modelling-and-simulation-r6248-shield-ai-san-diego-xe9yvn3mf71x) — San Diego, CA