Reliability Engineer, Energy Storage

About Redwood Materials

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 2019, 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.

Reliability Engineer, Energy Storage

Essential Duties:

As an early member of a new engineering team, you will be responsible for defining system reliability requirements, generating damage models, and characterizing the reliability of our new product. You will work cross-functionally to define requirements, analyze designs, and design tests to meet high reliability standards in real-world conditions, including both electrical and mechanical failure modes.

You’re a doer, excited about getting your hands dirty and working in a dynamic, fast-paced setting, and want to shape a new department at Redwood.

Responsibilities Will Include:

• Define and own the reliability strategy for hardware products with complex PCBAs and electromechanical assemblies

• Plan and execute reliability tests such as HALT, thermal cycling, vibration, drop, humidity, ingress protection (IP) testing, and power cycling

• Collaborate with cross-functional teams to define design-for-reliability (DfR) requirements and drive root cause analysis for test failures

• Track reliability KPIs and deliver reliability insights to guide design improvements and product decisions

• Develop accelerated life test models and support FMEA and DFMEA processes

• Analyze reliability data using Weibull, log-normal, and other statistical models to predict field performance

• Work closely with engineering teams to establish reliability gates through program stages (A/B/C/D)

• Support failure analysis (FA) efforts using tools like X-ray, cross-sectioning, and SEM/EDX to identify failure mechanisms in PCBAs

• Contribute to continuous improvement efforts across reliability processes, lab capabilities, and test methodologies

• Author reports / document findings

Desired Qualifications:

• Bachelor’s or Master’s degree in Electrical Engineering, Mechanical Engineering, Materials Science, or a related field

• >5 years of experience in hardware reliability engineering, preferably in industries like energy, EV, consumer electronics, or aerospace

• Deep knowledge of electronic and mechanical failure mechanisms (e.g., solder fatigue, corrosion, delamination, sealing failures, thermal expansion mismatch, material fatigue, etc.)

• Proficiency in statistical analysis tools (e.g., Minitab, JMP, or Python)

• Experience with reliability lab equipment and test setup design

• Knowledge of reliability warranty analysis and reliability prediction methods

• Working knowledge of failure analysis techniques such as optical microscopy, SEM, CSAM, X-ray, cross-sectioning and EDX

Physical Requirements:

• Ability to perform the essential job functions consistent safely and successfully with the ADA, FMLA and other federal, state and local standards, including meeting qualitative and/or quantitative productivity standards

• Ability to maintain regular, punctual attendance consistent with the ADA, FMLA and other federal, state, and local standards

Working Conditions:

• Environment, such as office or outdoors

• 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

• Occasional work weekends, nights, or be on-call as a regular part of the job

• Occasional travel requirements

In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.

California Pay Range:
$112,250—$151,750 USD

The position is full-time. Compensation will be commensurate with experience.

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