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About the Role

As an Embedded Software Engineer, you will be the architect of the real-time firmware that drives our power conversion units. You will live at the intersection of silicon and power, writing the low-level code that controls high-speed switching, manages thermal safety, and communicates with the broader site infrastructure. You will be responsible for bringing new products from white-space R&D to global scale, ensuring our code is as resilient as the hardware it controls.

Responsibilities

Design and implement bare-metal software applications for power electronics, focusing on high-resolution PWM generation, ADC synchronization, and complex timing logic.
Develop and optimize drivers for microcontroller peripherals (SPI, CAN, Ethernet) and architect memory-efficient, multi-core processing strategies for real-time targets.
Collaborate with power electronics controls engineers to translate controls theory into deterministic, high-performance code running on Cortex-R and Cortex-M architectures.
Maintain robust software build procedures and scripts.
Write highly testable code and integrate it into a modern CI/CD pipeline to ensure every line of code is validated before it hits the lab.
Profile and optimize code across multi-core environments, ensuring maximum task efficiency and minimal latency in time-critical control loops.
Leverage a proven track record to take embedded systems from initial prototype to mass-market production, maintaining high standards for code quality and reliability.

Requirements

A BS or MS in Electrical Engineering, Computer Engineering, or Computer Science.
2+ years of experience in firmware engineering.
A proven track record of shipping new products at scale.
Expert proficiency in Rust or C with deep experience debugging complex embedded systems using oscilloscopes, logic analyzers, and JTAG/SWD debuggers.
Extensive experience with ARM Cortex-M and Cortex-R architectures, including low-level system architecture, multi-core memory optimization, and bare-metal task management.
A deep understanding of power-specific software requirements, specifically high-speed ADC sampling, high-resolution PWMs, and hardware timers.
A safety-centered mindset with experience implementing functional isolation and ensuring freedom from interference (FFI) in complex, multi-core software environments.
Familiarity with UL certification standards for energy storage systems is a significant plus.
Practical experience with digital protocols such as I2C, UART, SPI, CAN/CAN-FD, and Ethernet.
Familiarity with reverse-engineering CAN protocols or developing custom evaluation tools is a significant plus.
Knowledge of software build systems and the ability to maintain build scripts (e.g., Make, CMake).
Experience with test automation and CI/CD is essential.
Experience developing bootloaders, implementing secure boot, or profiling code on real-time, multi-core targets.

Skills

Firmware Engineering
Rust
C
Embedded Systems Debugging
Oscilloscopes
Logic Analyzers
JTAG/SWD Debuggers
ARM Cortex-M
ARM Cortex-R
Low-level system architecture
Multi-core memory optimization
Bare-metal task management
High-speed ADC sampling
High-resolution PWMs
Hardware timers
Functional isolation
Freedom from interference (FFI)
I2C
UART
SPI
CAN/CAN-FD
Ethernet
Software build systems
Make
CMake
Test automation
CI/CD
Bootloaders
Secure boot

Location

California

Work Type

Full-time

Experience Level

2+ years of experience

Education Level

BS or MS in Electrical Engineering, Computer Engineering, or Computer Science

Salary/Compensations

$180,000—$237,500 USD

About the Company

Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling — keeping critical minerals in circulation and driving the energy transition.
Founded in 2017, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have.
We are at the precipice of a global energy transition.
At Redwood Materials, we are moving beyond battery recycling to build the most advanced, circular energy ecosystem on the planet.
Our goal is to move the industry away from static, hardware-heavy infrastructure toward agile, software-controlled energy assets.
While others build "black box" hardware, we are building software-defined power systems.