Principal Mechanical Engineer

Principal Mechanical Design Engineer

Quantum Scape is on a mission to transform energy storage with solid‑state lithium‑metal battery technology. The company’s next‑generation batteries are designed to enable greater energy density, faster charging and enhanced safety to support the transition away from legacy energy sources toward a lower‑carbon future.

We are looking to add a Principal Mechanical Design Engineer to our Cell Engineering and Manufacturing Development team. The role focuses on designing and scaling Quantum Scape’s solid‑state lithium‑metal batteries for high‑volume production, encompassing cell structures, encasings, components, and assembly tools.

What you’ll do:

• Lead the design, development, and implementation of new solid‑state Li‑metal battery designs for manufacturing scale‑up with cross‑functional teams.
• Utilize thermal and mechanical simulation to drive detailed mechanical design of cell architecture to meet customer mechanical, thermal, and pack‑level integration requirements.
• Identify, specify, and set requirements with suppliers for cell components, assembly tools, and manufacturing solutions for scale‑up.
• Develop methodologies and experiments to validate key cell design performance, reliability, and safety criteria.
• Collaborate with cell build process teams, equipment design teams, safety, quality, metrology, and production teams to execute critical path projects.

Required skills and experience:

• BS or higher degree in mechanical engineering, materials science, or a related field.
• Minimum of 10 years experience with a bachelor’s degree, or minimum of 8 years experience with a master’s degree.
• Proven experience driving mechanical design projects across the product life cycle from concept through production.
• Expertise with at least one major CAD package (e.g., Auto Desk Inventor, Solid Works, Catia).
• Expertise with mechanical & thermal simulation packages (e.g., ANSYS, ABAQUS, COMSOL).
• Prior experience or knowledge of lithium‑ion batteries is preferred.

Location: San Jose, CA