Mechanical Engineer - Battery Sorting, Energy Storage

Redwood MaterialsSan Francisco, CA
Onsite

About The Position

Redwood Materials 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. As a Mechanical Engineer on the Sorting team, you'll work alongside a world-class, cross-functional group of engineers to design, fabricate, integrate, and sustain production sorting equipment. We're looking for hands-on problem solvers who are energized by rapid iteration, people who can move fluidly between CAD, the shop floor, and the production line to keep hardware performing. If you're ready to make a tangible impact on the future of sustainable manufacturing, we want to hear from you.

Requirements

  • Bachelor's degree in Mechanical Engineering or a related engineering discipline
  • Experience using a CAD software design package (e.g., SolidWorks, NX, CATIA, or ProE)
  • Internship, co-op, or up to 2 years of professional experience in mechanical design (new graduates welcome)

Nice To Haves

  • Hands-on fabrication or prototyping experience (3D printing, sheet metal, welded structures, manual machining)
  • Exposure to conveyor systems, material handling equipment, or automated sorting/packaging machinery
  • Familiarity with sensor and actuator integration (encoders, servos, pneumatics, proximity sensors, cameras)
  • Interest in or exposure to machine learning, computer vision, or AI-enabled manufacturing systems
  • Understanding and application of GD&T
  • Experience working in or adjacent to a production or manufacturing environment
  • Comfort with engineering hand calculations and basic FEA
  • Ability to prioritize and execute tasks in a fast-paced, dynamic environment
  • Strong collaboration skills, including daily interactions with engineers, maintenance technicians, suppliers, and leadership

Responsibilities

  • Design, prototype, and implement mechanical assemblies for sorting line subsystems including infeed, outfeed, conveyors, diverters, and guarding
  • Collaborate with production engineering to troubleshoot and improve existing sorting equipment and processes to maximize throughput and uptime
  • Apply engineering fundamentals (structural sizing, mechanism design, tolerance analysis) to deliver robust hardware solutions
  • Create detailed models and engineering drawings in SolidWorks for custom fixtures, brackets, enclosures, and conveyor components
  • Support machine activation alongside the controls engineering team; participate in development testing and validation runs with production engineering
  • Assist with integration of sensors, cameras, and actuators into mechanical assemblies, ensuring hardware interfaces support the ML-based classification and computer vision pipeline
  • Contribute novel mechanical concepts and designs with the potential to generate intellectual property and patents

Benefits

  • Compensation will be commensurate with experience.
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