# Robotics Engineer, Staff

**Company:** [9 Mothers](https://hotfix.jobs/companies/9-mothers)
**Location:** Austin, TX
**Role:** Embedded Engineering
**Salary:** $250k – $300k/yr
**Experience:** 6+ years
**Skills:** Rust, C, C++, Python, Pid, Model-Predictive Control, State-Space Methods, Ros 2, Dds, Can Bus, Rtos
**Posted:** 2026-03-04

> Designs, implements, and tunes high-bandwidth control loops and state estimation for autonomous counter-drone robotics platform. Requires 6+ years in controls engineering for motion systems, proficiency in Rust/C/C++ and modern control theory.

## Job Description

## 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.
- 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 (backlash, cogging, stiction, inertia, 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.
- Strong command of modern control theory, including state-space methods, observers, and model-predictive control.
- Proficiency in **Rust**, **C**, **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.

## Preferred Qualifications
- Experience with gimbal, turret, or pointing-system design.
- System identification and model-based control experience.
- Hands-on experience with motor drivers, CAN bus, and RTOS targets.
- Experience with **ROS 2** or **DDS** middleware in production.
- Active security clearance, or eligibility to obtain one.
- Prior defense startup experience.
- Passion for building robots or engineering projects as a hobby.

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