Firmware Engineer, Energy Storage
Redwood MaterialsSan Francisco, California
Full Time
Posted October 20, 2025
$171k - $231k
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Application opens on company website
Job Description
Redwood Materials is seeking a Firmware Engineer to design, develop, and integrate robust firmware for energy storage products using ARM Cortex-M microcontrollers, collaborating with electrical and systems engineers 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 focusing on robust network communication
- Design and implement frameworks for simulation, SIL, and HIL integration testing
- 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
- A Bachelor's degree or Master's degree in Electrical Engineering, Computer Engineering, or Computer Science.
- Seven (7) years of experience in firmware engineering, with a strong focus in power conversion, renewable energy systems, or similar fields.
- Proven track record in shipping new products at scale.
- Excellent proficiency in Rust or C programming languages 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 Real-Time Operating Systems (RTOS).
- Experience with CI/CD test automation applied to software-enabled hardware products.
- Proficiency in Python is preferred.
- Experience with reverse engineering CAN protocols and developing custom diagnostic tools for evaluating embedded systems is desirable.
- Ability to build a new embedded firmware platform from scratch with a focus on robust and performant network communication.
- Ability to design and implement frameworks to support simulation and SIL HIL integration testing.
- Ability to design and deploy state estimation and power electronics control algorithms optimized for a resource-constrained environment.
- Ability to collaborate closely with electrical and systems engineers to specify and implement system behaviors and diagnostics coverage.
- Excellent communication and interpersonal skills, with the ability to build relationships with all levels of the organization and present to internal and external executives.
- Physical ability to perform essential job functions safely and successfully, including climbing, standing, stooping, or typing, consistent with ADA, FMLA, and other standards.
- Ability to maintain regular, punctual attendance and work in challenging conditions that may include exposure to noise, dust, chemicals, and temperature extremes, while protected by PPE.
- 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
Salary range: $171,000 - $231,000 USD
Full-time position
Compensation commensurate with experience
Ready to Apply?
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