Job Title:
Engineer II, Customer Quality Engineering
The Customer Quality Engineer (CQE) – for CMP Slurry, based in Suwon, Korea, is responsible for supporting customer quality activities and ensuring stable product performance through effective customer engagement and data-driven problem solving. This role requires strong product understanding of CMP slurry, solid knowledge of semiconductor manufacturing processes, and hands-on experience supporting major semiconductor customers
Key Responsibilities
Serve as a customer-facing quality engineerfor CMP Slurry products, primarily supporting customers in Korea
Support and resolve customer quality issuesthrough structured root cause analysis and corrective/preventive actions (CAPA)
Provide technical support related to CMP slurry performancein semiconductor fabrication processes
Perform statistical data analysisusing Six Sigma methodologies and tools such as Minitab and JMPto identify trends, root causes, and improvement opportunities
Actively collaborate withFab Technology Engineer (FTE), sales team, BU, R&D, Manufacturing, and global plant teamsto ensure smooth transition from development to HVM
Support customer qualification, validation, and change management activities
Prepare and present data-driven analysis and technical findingsfor customer meetings, quality reviews, and internal discussions
Ensure alignment with customer requirements, internal quality standards, and project timelines
Required Qualifications
Bachelor’s degree in chemical engineering, Materials Science, Chemistry, Semiconductor Engineering, or a related field
3–6 years of experiencein customer quality engineering, process engineering, or semiconductor materials–related roles
Strong understanding of CMP slurry productsand their application in semiconductor processes
Solid knowledge of semiconductor manufacturing processes, especially CMP-related steps
Experience working with domestic and/or global semiconductor material environments
Proven ability to conduct statistical data analysisusing Six Sigma tools, Minitab, JMP, or equivalent software
Ability to make logical, data-driven decisionsbased on quantitative analysis
Proficiency in English(verbal and written)
Preferred Qualifications
Experience supporting CMP Slurry productsin fab environments
Hands-on experience with DOE, SPC, or trend analysis
Six Sigma certification (Green Belt or above)
Experience collaborating with overseas manufacturing sites or global teams
Familiarity with customer audits and quality system requirements
Your success will be measured by:
Success for theCQErole is measured by both quantitative and qualitative means that include both Customer and Entegris KPI’s that require CQE support and oversight as well as subjective interpersonal ratings from customers and internal stakeholders that are vital to the overall success of the CQE role.That is being measured in combination with how these results being achieved:
Strong customer focus and communication skills
Data-driven and structured problem-solving mindset
Accountability and attention to detail
Ability to work effectively in cross-functional and multicultural teams
Willingness to learn and continuously improve quality and technical capabilities

Artificial intelligence, augmented reality, Internet of Things – these are not just trends, they are drivers changing the way people live across the globe. With these new drivers and the increasing speed of innovation, there comes an expectation for higher-quality, higher-performing technologies at a faster pace.
Every day, and for more than 50 years, Entegris’ singular mission has been to help customers utilize our advanced science-based solutions to support demand drivers; to innovate faster and more efficiently; and ultimately to transform the world. Through the power of our solutions and technology expertise, Entegris provides customers with innovative, science-based solutions to their toughest technology challenges.
Headquartered in Billerica, Massachusetts, Entegris employs approximately 8,000 people worldwide, with roughly half employed in Asia-Pacific or Europe.
With research and development, customer service, analytical labs, and manufacturing in Asia-Pacific, North America and Europe, Entegris supports customers around the globe as they take technology to the next level.