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Robotics Engineer, Staff

9 Mothers· Engineering
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Austin, TX$250k - $400kFull-timePosted 3mo ago

About the role

Senior robotics engineer role focused on control systems, motion engineering, and state estimation for a counter-sUAS platform. Onsite in Austin, TX.

Responsibilities

  • 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.

Qualifications

  • 6+ years of professional experience in production controls engineering within motion systems, robotics, aerospace, or comparable real-time domains.
  • Strong command of modern control theory, including state-space methods, observers, and model-predictive control.
  • Proficiency in Rust, C, or C++ for real-time code, and Python for analysis and tooling.
  • Demonstrated track record of bringing a complex physical system to production-grade performance.
  • U.S. citizenship and ability to pass a background check.

Skills

Required:Control theoryReal-time programmingState estimation

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: You will directly shape product and technology trajectory from day one.
  • Mission-Critical Work: Building systems the Department of War actively needs to counter immediate threats.
  • The Builder's Playground: Brand-new lab with NVIDIA Jetsons, high-end scopes, and 3-D printers.
  • 100% Employer-Paid Premiums: Medical, dental, and vision premiums covered; dependents premiums partially covered.
  • Unlimited PTO: Flexible time off to stay sharp.
  • Zero Red Tape: Autonomy to make technical decisions.
  • Austin-Based Culture: Onsite team in Austin with high-bandwidth collaboration.
  • Relocation Assistance: Support to move to Austin.
Last updated Oct 25, 2026. Interested? Apply on the company site.
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About 9 Mothers

AI weapon systems

We are making AI weapon systems for the modern battlefield. Our first product EDDA is a small, low power, low cost fully autonomous-capable counter drone system. It's designed to be used on vehicles, bases, or carried - to stop group 1 suicide drones.

Hard TechHardwareDronesGovTechAerospace
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