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: Manufacturing Quality is a diverse group of engineers and data scientists who bring deep expertise in materials science, electrochemistry, statistics, and machine learning. Our team thrives on data-driven decision-making and a shared commitment to drive continuous improvement to QuantumScape’s solid-state battery technology. We work closely with the Manufacturing, Reliability, and R&D, groups to identify failure modes, engineer critical-to-quality specifications, and implement robust control strategies across all process areas.

What we need: We are seeking a Principal Process Quality Engineer with extensive industry experience in Process Quality. In this role, you will lead key initiatives to implement SPC, improve Ppk / Cpk, and reduce defectivity across manufacturing processes at QuantumScape.

The ideal candidate has a strong background in statistical analysis, a proven track record with complex data analysis, and thrives in a highly collaborative, fast-paced environment. If you enjoy problem-solving and want to build a system from the ground up, we’d like to hear from you.

What You’ll do:

• Design and manage quality control plans for each process step across separator, cathode, and cell manufacturing lines.
• Enforce statistical process control (SPC) requirements. Collaborate with process owners to monitor control charts, document out of control action plans (OCAPs), review Cp/Cok, etc.
• Lead DFMEA and PFMEA, highlighting the highest risk of failure for the design and/or process using an RPN scale.
• Participate in Change Control reviews to ensure that the critical process parameter changes are defined, characterized, and controlled.
• Leverage DOE and statistical analysis to formalize sampling protocol for go no-go testing
• Use Python and other analytical tools to collect, clean, and analyze large data sets to identify trends, root causes, and improvement opportunities.
• Mentor junior engineers and quality team members on analytical techniques, process quality methods, and problem-solving frameworks.
• Champion data-driven decision-making and statistical rigor in all quality processes.

Skills You’ll Need:

• Deep knowledge of quality tools and methodologies (Six Sigma, Lean Manufacturing, DOE, SPC, root cause analysis).
• Strong analytical and statistical skills; proficiency with SQL, Minitab, or JMP is a plus.
• Experience with Python for data analysis, automation, and visualization (pandas, numpy, matplotlib, seaborn, etc.).
• Excellent communication, presentation, and leadership skills, with a track record of influencing cross-functional teams.
• Proven ability to work in fast-paced, data-driven manufacturing environments.
• 8+ years of experience in a manufacturing quality or process engineering role, with at least 3 years in a senior or principal-level position.
• Bachelor’s degree in Engineering (Mechanical, Manufacturing, Industrial, or related discipline); advanced degree preferred.

Nice to have:

• Fundamental understanding of battery electrochemistries and failure mechanisms. Familiarity of electrical test and metrics.
• Certified with Six Sigma, Certified Manager of Quality, Certified Quality Engineer (CQE), or Certified Reliability Engineer (CRE).

Physical requirements:

• Work is performed in a dry room, fume hood, lab area, or glovebox requiring the use of fine motor skills
• Sitting or standing for extended periods of time
• Reaching and twisting motions with hands
• Lifting up to 25 lbs.

ONSITE: This position is required to work onsite 4-5 days per week to meet the minimum essential duties and requirements of this position. As an on-site R&D and manufacturing operations organization, in-person face to face interaction is essential to building authentic relationships, trust, teamwork, and collaboration.

Compensation & Benefits: Expected salary range for this role is from $ 119,000 to $181,550, and a final salary will be determined by the candidate's experience and educational background. QuantumScape also offers an annual bonus and a generous RSU/Equity package as part of its compensation plan. In addition, we do offer a tremendous benefits plan including employee paid health care, Employee Stock Purchase Plan (ESPP), and other benefits.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive benefits and privileges of employment. Please contact us to request an accommodation.