Mechanical Design Engineering Intern, Redwood Materials
$41 - $54.50 USD p/hr
Occasional travel requirements
Battery recycling startup
Be an early applicant
Battery recycling startup
501-1000 employees
Be an early applicant
$41 - $54.50 USD p/hr
Occasional travel requirements
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
- Currently enrolled in a degree program for BS or MS in Mechanical Engineering or a related field
- An understanding of the relationship between high voltage electronics and the mechanical systems that support and surround them (e.g. insulation systems and thermal systems.)
- Proficiency in CAD (e.g., SolidWorks)
- Some basic experience in analysis tools (CFD, FEA, etc.) preferred
- Self-motivated, with the ability to manage your work in a startup environment, balancing multiple priorities and deadlines
- Excellent communication and interpersonal skills, capable of building relationships with cross-functional team members
- 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
What the job involves
- You will be an early member of a new engineering team, taking a hands-on role in the design, development, and integration of a new high-power electromechanical product line at Redwood
- You'll be responsible for designing mechanical components related to high power electronics, including thermal management, harnessing, enclosures, structures, and reliability while also collaborating closely with electrical, software, and systems engineering teams
- The ideal candidate is highly self-driven, adaptable to a startup environment, and eager to take on both technical and leadership challenges
- You’re a leader and a doer, excited about working in a dynamic, fast-paced setting, and want to shape the mechanical engineering function within a new department at Redwood
- This is a Summer 2026 position
- Execute component-level mechanical design and development of a high-volume, high-power energy conversion product from concept to deployment, including thermal management, structural design, packaging/integration of power electronics, and integration with grid infrastructure
- Act as in integral mechanical engineering team member, driving innovation and solving technical challenges at a large scale
- Perform mechanical analysis (CFD, FEA, thermal, etc.) to validate designs and ensure performance under real-world conditions
- Collaborate with electrical and systems engineers to ensure seamless integration of mechanical systems into the overall system architecture
- Select materials and components, working closely with suppliers and vendors to ensure cost-effective, high-quality solutions
- Contribute to a collaborative, fast-paced startup culture, where every team member plays a crucial role in achieving company milestones
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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