Overview

Location: Onsite — Austin, TX Employment Type: Full0Time 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, fast0moving team. You will design and implement the physical control systems 1the body 1 of our interceptor platforms. This role is critical, as the accuracy of our control theory dictates the success of every high0speed maneuver in combat. You should be comfortable writing code and working with robotic components (actuators, controllers, compute, sensors, etc.).

Essential Duties

• Design and implement high0bandwidth control loops and advanced control algorithms (e.g., PID control) to ensure vehicle stability and enable high0speed, precise maneuvers under dynamic load.
• Write high0quality, efficient code (primarily Rust, C, or C++) to control and manage actuators, motor drivers (via CAN bus), and sensors on a real0time 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, real0time 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, ensuring rapid iteration and deployment.

Requirements

• Control theory & embedded systems: Strong grasp of PID control, motor drivers, CAN bus, and RTOS fundamentals. Expertise in designing control and performance for robotics applications.
• Programming/frameworks: Hands0on experience building embedded robotics systems. Proficiency in Rust, C, or C++ for speed and direct hardware interaction.
• Hardware: Experience with embedded platforms such as NVIDIA Jetson and camera pipelines. Skilled in managing scopes, logic/CAN analyzers, and basic rework.
• U.S. Citizenship and the ability to pass a background check.

Preferred Qualifications

• Experience with ROS2, DDS, or similar middleware
• Model0predictive or adaptive control expertise
• PCB design and EMC awareness
• Safety0critical workflow experience
• Prior defense startup experience
• Security clearance or ability to obtain one
• Passion for building robots or engineering projects as a hobby

Benefits

• Meaningful Early Equity: You aren't just an employee; you are a foundational owner. Your contributions directly drive the value of your stake in the company.
• Direct Roadmap Influence: Forget the bureaucracy of big defense. You will have a seat at the table,...