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.
Mechanical Design Engineer, Big Machines
Do you want to design and build robust, industrial-scale machinery from the ground up? Join the Big Machines team at Redwood Materials, where we develop high-performance equipment—such as 200 ton kilns, meter long knife gates, rotary seals, and complex 30m+ conveyance systems—built to operate reliably at 900°C in some of the most corrosive, debris-laden environments on Earth.
Our team partners closely with engineering leadership to solve large-scale mechanical challenges as we scale cutting-edge technologies that drive the circular battery economy. By increasing the reach of recycled and sustainable materials, we are transforming the global battery supply chain. As a member of the Big Machines team, you’ll collaborate with high caliber engineers to design, fabricate, and deploy critical production assets. We’re looking for creative problem solvers who can tackle complex mechanical systems—people who think both tactically and strategically to deliver durable, long-term solutions. If you’re ready to make a tangible impact on the future of sustainable manufacturing, we want to hear from you.
Responsibilities
Lead the design, build, and activation of low-volume custom machinery and infrastructure
Collaborate with production engineering to debug existing equipment and manufacturing processes to maximize production rates
Execute structural sizing, mechanism design, hardware fabrication, and activation testing to deliver results on projects
Create detailed models and engineering prints in SolidWorks
Perform engineering hand calculations and analysis to size structures and mechanisms
Support machine activation alongside controls engineering teams and perform development testing with production engineering teams
Basic Qualifications
Bachelor’s degree in an engineering discipline
Experience using a CAD software design package such as SolidWorks, NX, CATIA, or Pro/ENGINEER
2+ years of professional experience designing and analyzing mechanical structures
Preferred Qualifications
5+ years of technical product development experience
Ability to prioritize and execute tasks in a fast-paced, dynamic environment
Ability to work in a collaborative team environment, including daily interactions with engineers, maintenance, suppliers, and leadership
Experience working in a production facility with heavy equipment and industrial machinery
Experience managing large CAD assembly models and engineering drawings
Experience with finite element analysis (FEA)
Experience with statistical data collection, analysis, and reporting
Experience designing and fabricating welded structures
Experience designing and testing mechanical mechanisms
Experience with basic electrical engineering components, including servos, actuators, and sensor integration
Strong understanding and application of Geometric Dimensioning and Tolerancing (GD&T)
Hands-on experience with equipment manufacturing and implementation
Self-motivated approach with a hands-on mindset and strong initiative
Excellent written and verbal communication skills
Passion for sustainability and clean energy technology
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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Redwood Materials is building the U.S. stockpile of critical materials and deploying large-scale energy storage. Founded by JB Straubel, the company produces lithium, nickel, cobalt, copper, and cathode active material at scale in the U.S., manufactures key components for advanced batteries, and deploys energy storage systems that power data centers and the nation’s grid. Redwood is expanding domestic capacity for next-generation energy storage and strengthening U.S. energy dominance.
