Manufacturing Quality Engineer

Job Title: Manufacturing Quality Engineer         

Job Type: Full Time, Exempt

Location: Fremont, CA (On-site)

Reports to Director of Operations

Company Description

Amprius Technologies is a leading manufacturer of high-energy and high-capacity lithium-ion batteries producing the industry’s highest energy density cells. We develop, design, and manufacture high-performance lithium-ion cells for advanced applications. The company’s corporate headquarters is in Fremont, California, where we maintain an R&D Lab and a pilot manufacturing facility for the fabrication of silicon anodes and cells. For more information, visit the company website at https://amprius.com/about/

Summary

Manufacturing Quality Engineer will be responsible for ensuring in-process product quality, driving root cause analysis of quality issues, and implementing corrective actions. This role plays a critical part in developing and qualifying robust manufacturing processes that meet customer and regulatory requirements at our Fremont Factory.

Job Repsonsibilities:

In-Process Quality Control:

• Collaborate with Production and Engineering to define and maintain critical quality parameters and control limits
• Develop and implement in-process inspection standards, control plans, and quality monitoring systems.

Non-Conformance (NC) Handling:

• Manage the identification, documentation, and disposition of non-conforming material.
• Lead cross-functional teams to evaluate and contain non-conforming products in a timely manner.
• Drive data collection and analysis of NC trends to support continuous improvement efforts.

Root Cause Analysis & Corrective Action (RCA/CA):

• Lead structured problem-solving activities using tools such as 5 Whys, Fishbone diagrams, and FMEA.
• Coordinate cross-functional teams to define root causes and implement corrective/preventive actions (CAPA).
• Monitor and verify the effectiveness of implemented actions to ensure sustainable improvements.

Process Qualification & Validation:

• Develop and execute process qualification plans when introducing new processes or equipment.
• Collaborate with Engineering to define quality requirements for new or modified equipment and processes.
• Review and approve process validation protocols, reports, and supporting data.

Continuous Improvement & Change Management:

• Drive process improvements using Lean, Six Sigma, or other quality methodologies.
• Participate in Kaizen events and support quality training programs for production staff.
• Participate in Engineering Change Control (ECC) reviews and ensure proper risk assessments and validations are completed.
• Provide process specific Technical Training to the technicians as part of CI efforts.

Documentation & Compliance:

• Ensure all quality documentation is accurate, complete, and compliant with industry standards (ISO 9001 & AS9100).
• Support internal and external audits, including customer and regulatory audits.
• Maintain records for traceability, calibration, inspection results, and process changes.

• Bachelor’s degree in Mechanical, Electrical or Industrial Engineering or related field.
• 3+ years of experience in a manufacturing quality role, preferably in the lithium-ion battery, electronics, or automotive industry.
• Strong knowledge of quality systems, root cause analysis, and process control tools.
• Experience with Six Sigma Approach with at least a Green Belt.
• Experience with SPC, FMEA, control plans, and statistical analysis.
• Working knowledge of ISO 9001, AS9100, or similar quality standards.
• Proficient in Microsoft Office, JMP/ Minitab and ERP systems.
• Excellent communication, teamwork, and problem-solving skills

Preferred Qualifications:

• Masters degree in Industrial or Mechanical Engineering preferred.
• Experience in lithium-ion battery manufacturing or other energy storage technologies.
• Black Belt in Six Sigma.
• Familiarity with high-volume manufacturing environments.

Physical Demands & Work Location:

• Fremont, CA: This is an on-site job. Reliable commute or planning to relocate before starting work is required.
• Adhere to company’s quality and safety requirements.
• Work performed in an office environment and requires ability to operate standard office equipment and keyboards
• Be able to lift and/or move objects up to 25 pounds.
• Able to wear personal protective equipment (PPE) including, but not limited to, a lab coat, gloves, safety glasses, face mask, respirator and safety shoes per company safety policy.

• Comprehensive compensation package includes base salary + generous RSUs.

• Health benefits include medical, dental, vision coverage. Medical options available for both HMO and PPO plans with Kaiser and United Healthcare. Medical plan available that are 100% covered by employer.
• Employer-funded Health Reimbursement Account (HRA). HSA compatible Medical Plan, FSA options.
• Life and AD&D, Short & Long-term Disability, Employee Assistance Program, Mental Health support. 
• Voluntary Coverage Package to support your wellness goals.
• Pet Health Insurance (Dogs & Cats)
• Traditional and Roth 401(k). No match.
• Generous Vacation Leave starting with 3 weeks of annual accrual. 10 paid holidays. Sick time off.
• Cell phone reimbursement for $50/month

Amprius Technologies is committed to promoting an equal employment opportunity workplace environment and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expressions, pregnancy, age, national origin, disability status, genetic information (GINA), protected veteran status, or any characteristic protected by law. The Company’s policy is to recruit, hire, train, promote, and administer all employment-related matters based on an individual’s qualifications, abilities, and efforts without regard to protected status.