Firmware Engineer, Energy Storage
Redwood MaterialsSan Francisco, California
Full Time
Posted February 27, 2026
$138k - $228k
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Job Description
Redwood Materials is seeking a Senior Firmware Engineer to design, develop, and integrate robust firmware for energy storage products, focusing on microcontroller communication, control algorithms, and system diagnostics in a fast-paced startup environment.
Key Responsibilities
- Design, develop, and integrate embedded firmware for ARM Cortex-M microcontrollers in large-scale industrial applications
- Build a new embedded firmware platform from scratch focusing on robust network communication
- Implement frameworks to support simulation, SIL, and HIL integration testing
- Develop and deploy 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 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 work occasional weekends, nights, or be on-call as a regular part of the job
- Willingness to undertake occasional travel as required
Benefits & Perks
Compensation/salary range: $137,500 - $227,500 USD
Full-time position
Work environment includes challenging conditions such as exposure to noise, dust, chemicals, and temperature extremes, with PPE provided
Occasional work on weekends, nights, or being on-call
Occasional travel
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