# Electrical Engineer, Staff

**Company:** [9 Mothers](https://hotfix.jobs/companies/9-mothers)
**Location:** Austin, TX
**Role:** Hardware Engineering
**Salary:** $250k – $400k/yr
**Skills:** Altium, Kicad, Pcb Design, Power Electronics, I2S, Tdm, Pdm, Can Bus, Ethercat, Nvidia Jetsons, Oscilloscopes, Logic Analyzers
**Posted:** 2026-05-13

> Leads electrical architecture for ground-based counter-drone interceptors, designing multi-layer PCBs, integrating acoustic sensors and power systems for high-torque motors, and ensuring ruggedness in harsh environments. Requires hands-on PCB expertise and field debugging skills.

## Job Description

## Responsibilities
- Lead end-to-end design of complex, multi-layer PCBs, including schematic capture and layout.
- Integrate microphone arrays with acoustic team, ensuring signal integrity for low-noise, multichannel audio acquisition.
- Design and optimize power distribution and control systems for high-torque motors and edge-compute hardware like NVIDIA Jetsons.
- Create robust electrical designs for extreme temperature, humidity, and mechanical vibration.
- Develop circuits for motor controllers, sensor interfaces, and communication protocols (e.g., **CAN bus**, **EtherCAT**).
- Debug hardware using oscilloscopes, logic analyzers, and rework stations.

## Requirements
- Proven track record of shipping real-world physical systems.
- Mastery of **Altium**, **KiCad**, or similar for high-density PCB design and power electronics.
- Understanding of EMC and electrical safety requirements.
- Hands-on experience with digital audio interfaces (**I2S**, **TDM**, **PDM**) and high-speed communication protocols.
- Bias toward action; comfortable in lab or field.
- U.S. Citizenship and ability to pass background check.

## Nice-to-Haves
- Prior experience with DoD codes and standards for electrical systems.
- Experience with power systems for high-speed gimbal or turret systems.
- Security clearance or ability to obtain one.

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