Manufacturing Test Engineer, Redwood Materials
Mechanical, Energy Storage
$135-224k
More information about location
Battery recycling startup
Be an early applicant
Battery recycling startup
501-1000 employees
Be an early applicant
$135-224k
More information about location
501-1000 employees
Company mission
To build a circular supply chain to power a sustainable world and accelerate the reduction of fossil fuels.
Role
Who you are
- Bachelor's degree in Mechanical Engineering, Mechatronics, or a related field
- 3+ years experience with mechanical design of robust fixtures, jigs, and high cycle count hardware
- Experience with PCBA Bed of Nails fixtures and other high volume electrical interface designs
- Experience working with high-voltage systems (400–2000VDC and 480-800VAC)
- Hands on mechanical prototyping experience using basic shop & lab tools
- Excellent communication and interpersonal skills; ability to engage effectively with stakeholders at all organizational levels, including executives
- A get-it-done attitude; no job is too big or too small
- 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
What the job involves
- As an early member of a new engineering team, you will play a key role in mechanical actuators and fixtures for manufacturing testers to support Redwood Energy
- You’ll be involved in the design of testers for implementation in manufacturing as well as field settings to screen our products
- This role requires a hands-on, proactive attitude paired with a methodical and analytical approach to problem-solving
- Design mechanical fixtures, actuators, and systems for high volume manufacturing testers
- Collaborate with electrical and mechanical design engineers on design for manufacture considerations
- Develop automated interfaces for high volume using tools like pneumatics and/or electromechanical actuators
- Own thermal simulation and design of high volume high powered test equipment
- Debug and root cause issues found in manufacturing test
- Participate in tester builds and validation efforts such as GRR and SAT
Our take
Redwood Materials, the brainchild of former Tesla co-founder and CTO JB Straubel, is making waves in the sustainable energy sector with its strategic approach to battery recycling and domestic supply chains for lithium-ion batteries.
The company is dedicated to creating a fully closed-loop supply chain by manufacturing critical battery components using as many recycled batteries as possible, effectively localising a 50,000-mile global battery supply chain on a single site. This strategy aims to address the critical issue of material sourcing, particularly the reliance on China for battery materials.
Redwood Materials closed a Series E funding round in 2025 at a post-money valuation exceeding $6B. This financial backing positions the company to continue expanding its capacity, further strengthening the US's domestic battery supply chain. Its ambitious goal of enabling customers to purchase battery materials made in the US is aligned directly with the broader political objective of onshoring critical industries, as emphasised in the USA's 2022 Inflation Reduction Act.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 7 rounds)
Feb 2026
$75m
SERIES E
Oct 2025
$350m
SERIES E
Total funding: $2.2bn
Company HQ
Carson City, NV
Leadership
JB Straubel
(CEO)Co-founder of Tesla where they spent 15 years as Chief Technology Officer before founding Redwood Materials. They currently serve on the Board of Directors at Tesla and as a Board Member at QuantumScape.
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