Firmware Engineer, Energy Storage
Redwood MaterialsSan Francisco, California
Full Time
Posted December 16, 2025
$138k - $228k
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Application opens on company website
Job Description
A Senior Firmware Engineer at Redwood Materials will be responsible for designing, developing, and integrating robust firmware for microcontrollers in energy storage applications, collaborating with cross-disciplinary teams to build scalable embedded systems and control algorithms in a fast-paced startup environment.
Key Responsibilities
- Design, develop, and integrate robust firmware for ARM Cortex-M microcontrollers in large-scale industrial applications
- Build a new embedded firmware platform from scratch focusing on network communication reliability and performance
- Design and implement frameworks to support simulation, SIL, and HIL integration testing
- Develop state estimation and power electronics control algorithms optimized for resource-constrained environments
- Collaborate with electrical and systems engineers to specify system behaviors and diagnostics
- Produce comprehensive software documentation
Requirements
- BS or MS in Electrical Engineering, Computer Engineering, or Computer Science
- 5 years of experience in firmware engineering, with a strong focus in power conversion, renewable energy systems, or similar
- Proven track record in shipping new products at scale
- Excellent proficiency in Rust or C and debugging embedded systems
- Experience with digital protocols such as SPI, CAN, and Ethernet as well as application layer protocols such as CoAP or MQTT
- Expert knowledge of microcontroller hardware peripherals and RTOS
- Experience with CI/CD test automation applied to software-enabled hardware products
- Physical ability to perform the essential job functions safely and successfully in accordance with ADA, FMLA, and other standards, including meeting productivity standards
- Ability to maintain regular, punctual attendance consistent with ADA, FMLA, and other standards
- Ability to work in challenging working conditions which may include exposure to noise, dust, chemicals, and temperature extremes, while protected by PPE, for extended periods of time
- Essential physical requirements such as climbing, standing, stooping, or typing
- Willingness to occasionally work weekends, nights, or be on-call as a regular part of the job
- Willingness to undertake occasional travel as required
Benefits & Perks
Salary range: $137,500 - $227,500 USD
Full-time position
Compensation will be commensurate with experience
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