# Electrical Engineer, Senior

**Company:** [9 Mothers](https://hotfix.jobs/companies/9-mothers)
**Location:** Austin, TX
**Role:** Hardware Engineering
**Salary:** $150k – $250k/yr
**Skills:** Altium, Kicad, Pcb Design, I2S, Tdm, Pdm, Can Bus, Ethercat, Nvidia Jetsons, Oscilloscopes, Logic Analyzers, Power Electronics
**Posted:** 2026-05-13

> Owns electrical architecture for ground-based counter-drone interceptor platforms, leading PCB design, acoustic sensor integration, power systems, and hardware debugging in rugged environments. Requires hands-on PCB expertise and real-world shipping experience.

## Job Description

## Essential Duties

**Board Design & Prototyping:** Lead the end-to-end design of complex, multi-layer PCBs, including schematic capture and layout.

**Acoustic Integration:** Work closely with the Acoustic team to integrate microphone arrays, ensuring signal integrity for low-noise, multichannel audio acquisition.

**Power Management:** Design and optimize power distribution and control systems to support high-torque motors and edge-compute hardware like NVIDIA Jetsons.

**Environmental Ruggedness:** Create robust electrical designs which maintain functionality in environments with extreme temperature, humidity, and mechanical vibration.

**Circuit Design:** Develop robust circuits for motor controllers, sensor interfaces, and communication protocols (e.g., CAN bus and EtherCAT) that survive harsh environmental conditions.

**Hardware Debugging:** Utilize oscilloscopes, logic analyzers, and rework stations to identify and fix hardware-level failures during rapid iteration cycles.

## 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 design to meet general EMC and electrical safety requirements.
- Hands-on experience integrating digital audio interfaces (**I2S**, **TDM**, **PDM**) and high-speed communication protocols.
- A strong bias toward action and shipping; comfortable getting your hands dirty in the lab or the field.

## Preferred Qualifications

- Prior experience with DoD codes and standards as pertinent to electrical systems.
- Experience with power systems for high-speed gimbal or turret systems.
- Security clearance or the ability to obtain one.
- Passion for building robots or engineering projects as a hobby.

## Similar roles

- [Senior Substation Engineer](https://hotfix.jobs/jobs/4065cfc5-c1ba-4e3a-a976-e7798bd8525c) - Crusoe - Denver, CO - $150k – $170k/yr
- [Senior Instrumentation & Controls Engineer](https://hotfix.jobs/jobs/20f43d01-a9ac-4f47-9fd0-b86ac85c51fc) - Crusoe - Denver, CO - $150k – $170k/yr
- [Manager, Propulsion](https://hotfix.jobs/jobs/bc85b81c-ebdb-4c04-8efc-6245f9b0b64e) - Shield AI - Dallas, TX - $150k – $230k/yr
- [Manager, Propulsion](https://hotfix.jobs/jobs/9b1e58d5-720b-485a-bee0-641cb516021c) - Shield AI - Dallas, TX - $150k – $230k/yr
- [Manager, Propulsion](https://hotfix.jobs/jobs/b6767f75-559e-4f27-8ec4-3bfe39cbf326) - Shield AI - Dallas, TX - $150k – $230k/yr

**Apply:** https://hotfix.jobs/jobs/20e092c3-f2ed-4352-b693-e318c98d06ef
**Canonical:** https://hotfix.jobs/jobs/20e092c3-f2ed-4352-b693-e318c98d06ef