Test Engineering Intern

Description

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 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.

Essential Duties:

As a Hardware Test Engineering Intern, you will support the design and execution of hardware validation tests for a new product at Redwood Materials. You will work alongside hardware test, design and reliability engineers and gain hands-on exposure across mechanical, electrical and software engineering disciplines. This internship will provide practical experience throughout the hardware development cycle, including instrumentation, design of experiments, design validation, test automation and reliability testing.  

This role is ideal for a motivated, detail-oriented engineering student who enjoys hands-on work, thinking through complex hardware interactions, and applying engineering fundamentals to real-world product development challenges.  

Responsibilities Will Include:

Assist in the design, setup and execution of validation tests for a new electromechanical product 

Work with cross-functional teams to gain a deep understanding of engineering challenges at hand, and help develop test plans 

Help specify, build and maintain physical test infrastructure such as fixtures, instrumentation, environmental chambers and high voltage power supplies  

Contribute to the development of test & analysis automation tools  

Participate in failure analysis activities, including teardowns and root cause investigations  

Collect, analyze, document and communicate key learnings from test data  

Desired Qualifications:

Actively pursuing a bachelor's degree in mechanical engineering, electrical engineering, mechatronics or a related field  

Project experience involving hands-on testing, lab work or electromechanical systems  

Strong mechanical and electrical engineering fundamentals 

Interest in working across various engineering disciplines and willingness to learn 

Introductory programming experience; Object-oriented programming experience preferred 

Strong analytical and problem-solving skills with attention to detail 

Motivated, curious, and eager to learn with a get-it-done attitude 

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 travel requirements as needed 

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: $41—$54 USD

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

 

We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy-related questions, please contact us at privacy@redwoodmaterials.com.

Details

Location
SF
Term
Summer 2026
Posted
2/5/2026

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