Careers at Masis Staffing Solutions

The Quality Engineer is responsible for ensuring the safety, reliability, and consistency of lithium?ion battery products in a battery assembly manufacturing environment. This role plays a critical part in preventing defects that could lead to safety risks, product recalls, or performance failures by driving quality control, testing, and continuous improvement initiatives.

Key Responsibilities
Production Quality & Inspection

• Monitor and inspect battery components and finished products, including cells, modules, and battery packs
• Ensure manufacturing processes meet quality standards across all stages of production, including electrode coating, cell assembly, welding, stacking, and sealing
• Track and analyze key quality metrics such as defect rates, yield, and scrap to identify risks early

Testing & Validation

• Oversee and evaluate battery testing activities, including charge/discharge cycles, capacity testing, thermal performance, and safety/abuse testing
• Verify compliance with internal specifications, customer requirements, and applicable regulatory standards (UL, ISO, automotive OEM standards)

Root Cause Analysis & Corrective Action

• Investigate quality issues, defects, and failures using structured problem-solving methods
• Perform root cause analysis using tools such as 5 Whys, Fishbone diagrams, and fault tree analysis
• Identify contributing factors related to materials, processes, equipment, or design
• Implement corrective and preventive actions (CAPA) to prevent recurrence

Data Analysis & Continuous Improvement

• Analyze production and quality data to identify trends and improvement opportunities
• Lead continuous improvement initiatives using Lean, Six Sigma, and statistical process control (SPC) methodologies
• Drive process optimization to improve product quality and manufacturing efficiency

Process Quality Control

• Develop, maintain, and update quality documentation including control plans, inspection plans, and standard operating procedures (SOPs)
• Ensure consistent application of quality standards related to assembly tolerances and material handling

Safety & Compliance

• Ensure compliance with safety procedures related to battery manufacturing hazards
• Monitor and mitigate risks related to thermal runaway and chemical handling
• Support compliance with environmental regulations and industry quality standards such as ISO 9001 and IATF 16949

Cross?Functional Collaboration

• Partner with manufacturing, engineering, and production teams to resolve quality issues
• Support new product introductions (NPI), process changes, and validation activities
• Collaborate with suppliers and internal stakeholders to maintain quality standards

Supplier Quality

• Evaluate, audit, and manage suppliers of battery components and materials
• Address incoming inspection issues and lead supplier corrective actions
• Ensure suppliers consistently meet quality and performance requirements

Required Skills & Tools

• BS Degree in Mechanical Engineering or similar
• 0-3 years experience with quality tools and methodologies (Lean, Six Sigma, PFMEA, DFMEA)
• Proficiency in Korean a plus
• Proficiency with SPC and data analysis tools (e.g., Minitab, JMP)
• Strong understanding of battery systems, manufacturing processes, and automation
• Excellent problem-solving, communication, and analytical skills

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