Functional Safety Engineer, Energy Storage

Redwood Materials•San Francisco, CA

15h

About The Position

Redwood Materials is pioneering a sustainable circular economy for lithium-ion batteries by transforming recycled materials into critical inputs for energy storage and next-generation battery technologies. 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 seeking a motivated and experienced Functional Safety Engineer to join our team and play a key role in ensuring compliance with functional safety standards and advancing the safe deployment of new energy storage system (ESS) technologies.

Requirements

Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Systems Engineering, or related field
Hands-on experience in embedded software development, ideally within safety-critical or regulated environments
Proficiency in C for real-time embedded systems
Strong background in UL 1998, UL 991, and UL 5500
Experience working with Energy Storage Systems, power electronics, or safety-critical systems
Demonstrated ability to apply functional safety methodologies (e.g., hazard analysis, safety cases, V&V planning)
Experience managing compliance or certification processes with third-party testing/certification bodies
Strong organizational skills, with high attention to detail
Excellent communication skills, with the ability to explain complex technical requirements to diverse stakeholders
A passion for sustainability and making the world a better place!

Nice To Haves

Preferred experience developing or working directly with microcontroller-based systems, including low-level software or firmware
Familiarity with international functional safety standards such as IEC 61508, IEC/UL 60730, ISO 26262, or ISO 13849 (preferred)

Responsibilities

Lead compliance activities for ESS functional safety with a focus on UL 1998 (Software in Programmable Components), UL 991 (Tests for Safety-Related Controls Employing Solid-State Devices), and UL 5500 (Remote Software Updates).
Support certification efforts and align product development with functional safety requirements
Apply safety principles and methodologies to ESS hardware and software.
Facilitate and lead the development of FMEA’s, hazard analyses, safety cases, and test strategies.
Represent Redwood in standards development activities to help shape emerging requirements for ESS functional safety
Work with certification bodies (NRTLs) to establish and manage compliance programs for new technologies, ensuring timely approvals to support product introduction milestones.
Partner closely with engineering and product teams to integrate safety requirements into development cycles
Translate complex safety standards into actionable requirements for cross-functional teams.
Provide technical guidance on functional safety practices and address feedback to align product designs with compliance needs
Develop, document, and execute hazard mitigation and validation strategies.
Support testing and verification activities to ensure system safety performance.
Coordinate with internal and external stakeholders to resolve compliance and safety issues proactively
Collaborate with engineering, manufacturing, and product design teams to streamline compliance and safety processes for ESS.
Maintain strong relationships with certification bodies and industry partners to stay ahead of evolving safety requirements