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9 Mothers is an AI-powered defense technology company building autonomous counter-drone systems. This Field Applications Engineer role is the critical bridge between engineering and real-world deployment, responsible for operating, calibrating, and troubleshooting autonomous counter-UAS platforms during live demonstrations and field trials with active-duty users and government partners. What You'll Do • Lead live, dynamic flight and target-tracking demonstrations of autonomous counter-drone systems in field environments under high-stakes conditions • Prepare, assemble, and validate complex autonomous hardware and edge-compute systems prior to field tests and customer demonstrations • Perform precise hardware and sensor calibration including boresighting, thermal/EO camera focusing, lens calibration, and multi-sensor orientation alignment • Flash latest software builds, test system stability, perform integration tests, and ensure firmware/software readiness for field trials • Diagnose and resolve unexpected hardware, software, networking, and sensor issues on the fly during field trials with minimal downtime • Serve as the direct link between field operations and R&D, capturing detailed telemetry, edge cases, and user feedback to inform engineering iteration cycles What You Need • Demonstrated experience deploying, operating, or troubleshooting complex hardware/software systems in real-world or live-fire test range environments • Practical experience with optical/camera calibration, boresighting, sensor alignment, and field validation techniques • Proficiency in Linux command-line environments, firmware/software flashing tools, and basic networking/telemetry debugging • Experience with harness assembly, field repair, cable building, and multimeters/oscilloscopes for hardware troubleshooting • Willingness to travel to outdoor testing sites and demonstration ranges; comfortable working outdoors in varying terrain and weather conditions • U.S. citizenship (required for access to ITAR-controlled information); willingness to submit to background check Nice to Have • Prior experience with robotics, Unmanned Aerial Systems (UAS), counter-UAS (c-UAS), or defense range operations • Familiarity with thermal/IR optics, RF sensors, or embedded Linux environments such as NVIDIA Jetson • Prior defense startup experience or military background in range safety and flight test operations • Security clearance or ability to obtain one • Passion for building or engineering robotics or electronics as a hobby 100% employer-paid medical, dental, and vision insurance premiums; 50% of healthcare premiums for dependents; unlimited PTO; meaningful early equity; relocation assistance provided