Principal Member of Technical Staff, Solid State Cathode Engineer

QuantumScape 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. About the team: The Solid State Cathode team is a cross-functional group of materials scientists, process engineers, and manufacturing technologists responsible for developing and scaling the cathode fabrication processes at the heart of QuantumScape's all-solid-state battery. The team carries cathode technology from lab-scale demonstration through pilot-line execution to repeatable, manufacturing-relevant processes, working in close partnership with R&D, process engineering, manufacturing, quality, equipment, and supply chain. The team prides itself on hands-on experimentation, rigorous data-driven problem solving, and turning R&D learnings into the specifications and controls that hold up at scale. What we need: We are seeking a senior, hands-on technical leader to drive scale-up of solid-state cathode fabrication for larger-format all-solid-state battery builds. This role will help define the technical path from R&D demonstrations to repeatable, manufacturing-relevant processes, combining deep materials and process expertise, direct engagement with experiments and equipment, data-driven problem solving, and cross-functional leadership. If you want to own the path from a lab-scale demonstration to a production-intent process — and to influence the specifications, controls, and practices that make it stick — we'd like to hear from you. What You’ll do: Lead technical strategy and hands-on execution for scaling solid-state cathode fabrication from lab-scale development to larger-format ASSB builds. Work directly with materials, tools, experiments, and process data to develop, troubleshoot, and improve cathode fabrication processes. Define key material and process requirements, process windows, and control strategies to improve yield, uniformity, reliability, and cell performance. Lead root-cause analysis for process variability, defects, equipment excursions, and performance issues. Translate experimental and manufacturing data into clear technical recommendations and execution plans. Influence and mentor cross-functional teams across R&D, process engineering, manufacturing, quality, equipment, and supply chain. Skills You’ll Need: Bachelor’s degree with 10+ years of experience, Master’s degree with 8+ years of experience, or Ph.D. with 6+ years of experience in Materials Science, Chemical Engineering, Physics, or a closely related field, along with demonstrated hands-on experience in catholyte development for sulfide, halide, and/or oxyhalide-based solid-state batteries. Demonstrated ownership of process scale-up, technology transfer, manufacturing qualification, or pilot-line execution. Strong…