Reliability Engineer, Energy Storage
Redwood Materials
$122,500 - $192,500 / year
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Description
About Redwood Materials
Redwood Materials was founded in 2017 by JB Straubel, co-founder and former CTO of Tesla, on a simple but radical idea: the critical minerals powering the energy transition already exist. They just need to come back. Today Redwood is the largest lithium-ion battery recycler in North America — recovering, refining, and redeploying critical minerals from end-of-life batteries back into the supply chain. On the energy side, Redwood has deployed the largest second-life battery project in the world, delivering power to AI data centers in months rather than years using proprietary energy architecture engineered entirely in-house. The company is profitable, the market it operates in is projected to grow 20 to 50 times over the next decade, and Redwood is the only company with the supply chain, the technology, and the operational scale to lead it.
Reliability Engineer, Energy Storage
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 printed circuit board assemblies (PCBAs) and electromechanical systems
- 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
- A passion for sustainability and making the world a better place!
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.
The position is full-time. Compensation will be commensurate with experience.
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About this role
Redwood Materials is building out a new reliability engineering function for its energy storage products, and they're looking for an early-team member who can define and own the reliability strategy from the ground up. You'd be responsible for establishing requirements, designing and executing a full suite of reliability tests (HALT, thermal cycling, vibration, power cycling, and more), and analyzing failures across both electrical and mechanical domains. This means working with complex PCB assemblies and electromechanical systems in real-world conditions, collaborating across engineering teams to drive design improvements, and using statistical modeling to predict field performance.
The role demands someone with at least five years of hardware reliability experience, ideally from energy, EV, consumer electronics, or aerospace backgrounds. You'll need solid grounding in failure mechanisms, statistical analysis tools, and failure analysis techniques like SEM and X-ray analysis. This is a hands-on position in a fast-paced environment where you'll shape processes and capabilities as the department scales, rather than follow an established playbook.
The position is based in San Francisco and requires in-office work. The salary range is $122,500 to $192,500, with compensation varying based on experience and qualifications.
How this employer is doing
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In the news
Minerals processing startup Valor hires former Redwood Materials VP of engineering, Mining Weekly
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Pay for this role
$122,500 to $192,500 per year
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