Job Description

Job Title:

Engineer II, Manufacturing Engineering

Job Description:

THE ROLE:

We are seeking a Maintenance Engineer to strengthen equipment reliability and establish disciplined maintenance engineering processes across manufacturing operations at the Munmak site in Korea, supporting the Advanced Purity Solutions Division.

This position will complement the site’s strong hands-on maintenance capability by bringing structured engineering practices to preventive and predictive maintenance, equipment changes management, technical documentation, spare-parts management, root cause analysis, validation, and equipment improvement.

The role requires a balance of practical equipment knowledge and strong engineering process execution. You will work closely with experienced maintenance personnel, Manufacturing Engineering, Manufacturing, Quality, EHS, equipment suppliers, and other cross-functional teams to convert field knowledge into standardized, documented, and sustainable maintenance systems and transition maintenance from reactive support toward systematic equipment reliability

What You’ll Do:

• Develop, implement, and continuously improve preventive and predictive maintenance programs for manufacturing equipment, facilities interfaces, and automation systems.
• Monitor equipment performance and analyze downtime, MTBF, MTTR, OEE, preventive maintenance compliance, and repeat-failure trends to identify reliability improvement opportunities.
• Lead structured root cause analysis for critical, chronic, and recurring equipment failures and implement permanent corrective and preventive actions.
• Manage equipment modifications and improvements through applicable company change-management and engineering review processes, ensuring changes are evaluated, approved, documented, implemented, validated, communicated, and formally closed.
• Prepare and maintain controlled engineering documentation including equipment specifications, drawings, BOMs, manuals, PM standards, troubleshooting guides, equipment history, maintenance records, validation evidence, and technical reports.
• Convert maintenance experience and field knowledge into standardized maintenance procedures, inspection checklists, troubleshooting standards, training materials, and technical documentation.
• Establish equipment criticality and risk-based maintenance priorities focusing resources on equipment with the greatest impact on safety, quality, production, and business continuity.
• Develop and maintain critical spare-parts strategies based on equipment criticality, failure history, component lifecycle, lead time, and production risk.
• Coordinate equipment improvement and change activities with Manufacturing Engineering, Manufacturing, Quality, EHS, suppliers, and contractors.
• Support troubleshooting of mechanical, electrical, pneumatic, control, sensor, motor, servo, robotic, and automation equipment as applicable.
• Support new equipment introduction including technical reviews, installation, FAT/SAT, commissioning, qualification, and formal handover into the maintenance system.
• Ensure new and modified equipment is incorporated into PM programs, spare-parts requirements, equipment documentation, training, and maintenance history before closure.
• Lead or support reliability and equipment improvement projects aimed at reducing unplanned downtime, repetitive failures, maintenance response time, and operational risk.
• Apply structured methodologies including RCA, 5 Whys, Fishbone, FMEA, TPM, and data-based failure analysis to maintenance and equipment problems.
• Coordinate technical activities with external equipment suppliers and contractors and ensure work, safety controls, deliverables, and documentation meet applicable company requirements.
• Support equipment-related CAPEX and improvement projects by defining maintainability, reliability, spare-part, lifecycle, documentation, and maintenance requirements.
• Promote disciplined execution of company processes including engineering documentation, action tracking, change control, safety review, equipment validation, training, and timely action closure.

What We Seek:

• Bachelor’s degree in mechanical, electrical, mechatronics, automation, control engineering, or a related engineering discipline.
• Minimum 5 years of relevant experience in manufacturing equipment maintenance, equipment engineering, reliability engineering, automation, or industrial equipment support.
• Practical understanding of manufacturing equipment including mechanical, electrical, pneumatic, sensor, motor, servo, or automation systems.
• Strong understanding of preventive maintenance, equipment troubleshooting, failure analysis, and equipment reliability principles.
• Demonstrated ability to manage technical documentation, engineering changes, improvement activities, and project actions in a structured manner.
• Ability to manage engineering work from problem identification through technical review, approval, implementation, validation, documentation, training, and closure.
• Strong organizational skills and attention to documentation accuracy, follow-up, data integrity, and procedural compliance.
• Effective cross-functional communication skills with the ability to coordinate with Manufacturing, Engineering, Quality, EHS, technicians, suppliers, and contractors.
• Basic data analysis and computer skills, including Microsoft Excel and electronic maintenance or engineering records.
• Strong ownership with the ability to balance immediate equipment needs with long-term reliability and system improvements.

Outstanding candidates will have:

• Experience with formal engineering change management, MOC, equipment change control, or equipment validation processes.
• Experience building or improving preventive or predictive maintenance programs rather than only performing reactive repairs.
• Working knowledge of CMMS, SAP maintenance systems, equipment history databases, or other digital maintenance management systems.
• Experience analyzing MTBF, MTTR, OEE, downtime, PM compliance, and repeat-failure data.
• Experience with PLC/HMI, servo systems, industrial robots, sensors, pneumatic systems, automated manufacturing equipment, or related control technologies.
• Experience managing equipment BOMs, critical spare parts, lifecycle risks, obsolescence, and supplier technical support.
• Experience supporting equipment installation, FAT/SAT, commissioning, qualification, validation, or manufacturing release.
• Knowledge of TPM, Reliability-Centered Maintenance, FMEA, structured RCA, and continuous improvement methodologies.
• Experience in semiconductor, high-purity fluid handling, precision manufacturing, injection molding, CNC machining, automated assembly, cleanroom, or another highly controlled manufacturing environment.
• Demonstrated ability to translate hands-on maintenance knowledge into standardized systems, controlled documentation, and sustainable engineering processes.