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9 Mothers

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  • R&D Test Engineer

    Austin | OnSite

    onsite Salary not disclosed

    R&D Test Engineer Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: R&D Test Engineer About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking an R&D Test Engineer to own our high-speed imaging capability end-to-end. Testing is central to how we work-we iterate fast and make decisions from data. This is not a camera operator role; it is a test engineering position where high-speed imaging is the primary diagnostic instrument used to deliver quantitative kinematic data that engineers can act on. The right person understands the scientific limitations of imaging, designs test setups that yield clean data, and produces analysis that directly answers critical engineering questions regarding firearms and counter-drone systems. Essential

  • Mechatronics Engineer, Staff

    Austin | OnSite

    onsite Salary not disclosed

    Mechatronics Engineer, Staff Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: Lead Mechatronics Engineer About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking a Lead Mechatronics Engineer to act as the vital link between our mechanical, electrical, and robotics teams. You are the "glue" that ensures the software's intent is perfectly translated into physical motion. You will own motor selection, control tuning, and the physical interface of our turret drive systems. If you can calculate the physics of high-acceleration slewing and then write the code to execute it, you belong here. Essential Duties - Cross-Functional Interface: Serve as the primary technical bridge between mechanical design and electrical engineering. - Motor &

  • R&D Test Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    R&D Test Engineer, Senior Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: R&D Test Engineer, Senior About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking an R&D Test Engineer to own our high-speed imaging capability end-to-end. Testing is central to how we work-we iterate fast and make decisions from data. This is not a camera operator role; it is a test engineering position where high-speed imaging is the primary diagnostic instrument used to deliver quantitative kinematic data that engineers can act on. The right person understands the scientific limitations of imaging, designs test setups that yield clean data, and produces analysis that directly answers critical engineering questions regarding firearms and counter-drone

  • Robotics Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    Robotics Engineer, Senior Austin | OnSite Location: Onsite - Austin, TX Employment Type: Full‑Time Job Title: Senior Robotics Engineer Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary We are seeking an experienced Senior Robotics Engineer to join a small, fast‑moving team. You will design and implement the physical control systems - the “body” - of our interceptor platforms. This role is critical, as the accuracy of our control theory dictates the success of every high‑speed maneuver in combat. You should be comfortable writing code and working with robotic components (actuators, controllers, compute, sensors, etc.). Essential Duties - Design and implement high‑bandwidth control loops and advanced control algorithms (e.g., PID control) to ensure vehicle stability and enable high‑speed, precise maneuvers under dynamic load. - Write high‑quality, efficient code (primarily Rust, C, or C++) to control and manage actuators, motor drivers (via CAN bus), and sensors on a real‑time operating system (RTOS). - Integrate and fuse sensor data from cameras and IMUs (using methods such as EKF/UKF) on embedded systems (e.g., NVIDIA Jetson) to achieve reliable, real‑time state estimation. - Act as the final link in the autonomy chain, translating tracking output from the computer vision system into reliable motor commands that accurately steer the interceptor. - Define, build, and maintain Python tools for calibration, logging, and CI/CD,

  • Machine Learning Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    Machine Learning Engineer, Senior Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: Senior ML Engineer Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary 9 Mothers is seeking a Machine Learning Engineer to design, train, and maintain the models that power our counter-sUAS perception stack. The Machine Learning Engineer is responsible for model research, dataset engineering, and the training infrastructure that supports detection, classification, and discrimination of aerial targets. This is an individual contributor position. We don't use RAG, LLMs, or pre-built cloud APIs. Our stack requires building from the ground up to solve high-stakes problems under strict Size, Weight, and Power (SWaP) constraints. You should be capable of building models from scratch and have a fundamental understanding of the problem space. Essential Duties - Design, train, and iterate on machine learning models for detection, classification, and tracking of aerial targets. - Own the dataset pipeline end-to-end, including data collection, labeling, curation, augmentation, synthetic data generation, and closed-loop retraining based on field performance. - Build and maintain training infrastructure, including experiment tracking, compute orchestration, and evaluation harnesses. - Define metrics and evaluation methodologies that correlate to real-world operational performance. - Support deployment of trained models into the production perception stack, and address discrepancies between training and deployed performance. - Analyze

  • Perception Engineer, Staff

    Austin | OnSite

    onsite Salary not disclosed

    Perception Engineer, Staff Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: Perception Lead, Staff Eng Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary 9 Mothers is seeking a Perception Lead to own the computer vision and machine learning stack that powers target detection, classification, and tracking in our counter-sUAS systems. The Perception Lead is responsible for the research, development, and deployment of the perception pipeline that enables EDDA to engage aerial threats in real time. This is a senior individual contributor position. Essential Duties - Own the visual perception pipeline end-to-end, including detection, classification, and tracking of sUAS targets in real time. - Design and train machine learning models that meet latency and accuracy requirements for edge deployment on Jetson-class hardware. - Architect and maintain the dataset and simulation pipeline, including data collection, labeling, curation, augmentation, synthetic data generation, and closed-loop retraining based on field performance. - Optimize inference performance on Jetson platforms, including model pruning, quantization, TensorRT integration, and custom kernel development as required. - Establish the model evaluation framework and metrics used to assess perception performance under operational conditions. - Deliver target state information (position, velocity, identity, uncertainty) to the controls subsystem. - Collaborate with the hardware team on camera, optics, and sensor selection. Requirements - 6+

  • Electrical Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    Electrical Engineer, Senior Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full Time Job Title: Senior Electrical Engineer About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking a Senior Electrical Engineer to own the electrical architecture of our ground-based interceptor platforms. You will be responsible for the "nervous system" of our machines, from high-speed PCB design to complex sensor integration. This role is for a builder who can prototype a board in the morning and debug it in the field by the afternoon. You will play a critical role in integrating our custom acoustic sensing arrays and ensuring our power systems can handle high-speed tracking and rapid-response turret actuation. You will maintain ownership of

  • Mechatronics Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    Mechatronics Engineer, Senior Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: Senior Mechatronics Engineer About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking a Senior Mechatronics Engineer to act as the vital link between our mechanical, electrical, and robotics teams. You are the "glue" that ensures the software's intent is perfectly translated into physical motion. You will own motor selection, control tuning, and the physical interface of our turret drive systems. If you can calculate the physics of high-acceleration slewing and then write the code to execute it, you belong here. Essential Duties - Cross-Functional Interface: Serve as the primary technical bridge between mechanical design and electrical engineering. - Motor &

  • Robotics Engineer, Staff

    Austin | OnSite

    onsite Salary not disclosed

    Robotics Engineer, Staff Austin | OnSite Location: Onsite - Austin, TX Employment Type: Full‑Time Job Title: Lead Robotics Engineer Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary 9 Mothers is seeking a Robotics Lead to own the control systems and motion engineering for our counter-sUAS platform. The Robotics Lead is responsible for the design, implementation, and tuning of the high-bandwidth control loops and state estimation that enable EDDA to track and engage small, fast-moving aerial targets with precision. This is a senior individual contributor position focused on control theory. Essential Duties - Design, implement, and tune the control stack for EDDA's motion system, including actuators and gimbaled subsystems. - Develop and maintain high-bandwidth control loops, including PID, feedforward, and model-predictive control as appropriate to the application. - Develop and maintain state estimation pipelines that fuse inertial measurement unit data, encoder feedback, and perception output into a consistent target track. - Characterize and model mechanical nonlinearities - including backlash, cogging, stiction, inertia, and structural modes - and develop compensation strategies. - Build calibration, logging, and replay tools to support field performance analysis. - Continuously improve slew rate, settling time, and pointing accuracy as the hardware platform evolves. Requirements - 6+ years of professional experience in production controls engineering within motion systems, robotics, aerospace, or comparable real-time domains.

  • Embedded Engineer (BSP), Staff

    Austin | OnSite

    onsite Salary not disclosed

    Embedded Engineer (BSP), Staff Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full‑Time Job Title: Staff Embedded Engineer (BSP) Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary 9 Mothers is seeking a Lead Embedded Engineer (BSP) to own the Board Support Package and embedded platform underlying our counter-sUAS systems. The Lead Embedded Engineer is responsible for board bring-up, Linux platform development, device driver engineering, and the operating system framework upon which our perception, controls, and autonomy software operate. This is a senior individual contributor position. Essential Duties - Lead end-to-end bring-up of new board revisions, including bootloader, kernel, device tree, and peripheral driver development. - Own the Linux platform image that ships on production systems, including kernel configuration, patching, and long-term maintenance. - Design and maintain the operating system framework supporting application software, including process supervision, inter-process communication, logging, configuration management, and update and rollback infrastructure. - Develop and maintain device drivers for cameras, inertial measurement units, motor controllers, and custom hardware peripherals. - Establish and operate the build, signing, and provisioning pipeline for production deployment. - Diagnose and resolve complex issues spanning the hardware, kernel, and userspace boundary. - Define standards and best practices for embedded software development, testing, and deployment. Requirements - 6+ years of professional experienc

  • Electrical Engineer, Staff

    Austin | OnSite

    onsite Salary not disclosed

    Electrical Engineer, Staff Austin | OnSite Location: Onsite - Austin, TX Employment Type: Direct Hire, Full Time Job Title: Lead Electrical Engineer About 9 Mothers The modern battlefield has changed. Cheap, autonomous suicide drones have turned the tactical advantage upside down, and the world is looking for a solution. At 9 Mothers, we aren't just "innovating"-we are building the shield. Backed by top-tier investors, we develop AI powered machines designed to intercept and neutralize Group 1/sUAS threats in real-time. Our flagship product is a low-power, counter-drone system built for the edge-on vehicles, at bases, or in a soldier's pack. Why 9 Mothers? While others build for "awareness" or "long-term research," we build for the immediate survival of those in harm's way. We are a team of hackers, engineers, and mission-driven builders who value field-ready capability over polished slide decks. If you want to see your code or hardware in the field next month-not next year-this is your playground. Position Summary We are seeking a Lead Electrical Engineer to own the electrical architecture of our ground-based interceptor platforms. You will be responsible for the "nervous system" of our machines, from high-speed PCB design to complex sensor integration. This role is for a builder who can prototype a board in the morning and debug it in the field by the afternoon. You will play a critical role in integrating our custom acoustic sensing arrays and ensuring our power systems can handle high-speed tracking and rapid-response turret actuation. You will maintain ownership of

  • Computer Vision Engineer, Senior

    Austin | OnSite

    onsite Salary not disclosed

    Computer Vision Engineer, Senior Austin | OnSite LOCATION: ONSITE - AUSTIN, TX Employment Type: Direct Hire, Full‑Time Job Title: Senior Computer Vision Engineer Company Overview 9 Mothers Defense develops AI-enabled systems to counter unmanned aerial threats. Our first product, EDDA, is an autonomous counter-sUAS point-defense platform designed to detect, track, and neutralize Group 1 drone threats. The company is headquartered in Austin, Texas. Position Summary We are seeking a Senior Computer Vision Engineer to serve as the “eyes” of our autonomous c-sUAS platforms. You will design, implement, and optimize the entire perception pipeline, specializing in low-latency, high-frame-rate processing to track small, fast objects with zero margin for error. You should be comfortable building models and systems from the ground up, moving beyond simply utilizing existing frameworks. Essential Duties - Architect and Implement: Develop the entire embedded CV pipeline using high-performance Python and C++. - Target Tracking & Sensor Fusion: Design and deploy robust multi-object tracking and sensor fusion algorithms to ensure high-fidelity state estimation of fast-moving targets. - Object Detection: Utilize real-time models (e.g., YOLO) and CNNs optimized for speed. - Embedded Optimization: Optimize code for low-latency performance on resource-constrained NVIDIA Jetson environments using libraries like TensorRT and TFLite. - Geometric Vision: Apply principles of calibration, rectification, and 3D geometry to translate 2D footage into accurate 3D coordinates for fire control. - Cross-Functional Collaboration: Work with robotics teams to ensure perception data is reliable for autonomous decision-making. Requirements - Programming: Strong background in C++ (for performance) or Python. - SLAM/Localization: