Amkor Technology, Inc. is one of the world’s largest providers of outsourced semiconductor packaging and test services. Founded in 1968, Amkor pioneered the outsourcing of IC packaging and test and is now a strategic manufacturing partner for the world’s leading semiconductor companies, foundries and electronics OEMs. Amkor’s operational base includes production facilities, product development centers and sales and support offices located in key electronics manufacturing regions in Asia, Europe and the USA. For more information, visit . Position Summary:

Amkor Technology Arizona is seeking talented individuals who can grow with Amkor Technology Arizona as an Environmental Sr. Engineer. An Environmental Sr. Engineer is responsible for the overall tasks related to the Construction, Operation and Permitting of environmental facilities within the workplace. The Environmental Sr. Engineer is responsible for operating, maintaining, troubleshooting Environmental Utilities including: UPWS [Ultra Pure Water System], WWTS [Wastewater Treatment System (Organic, Inorganic, BRF)], and APCS [Air Pollution Control System]. This role supports Amkor's new Outsourced Semiconductor Assembly and Test (OSAT) factory/site in Peoria, AZ. Essential Duties and Responsibilities:

•Leads a clean, orderly, and safe workplace. Develops system documentation including PM job plans, operating instructions, out of control action plans and training. • Starts automatic feed of solid and liquid materials through equipment units, including heating, cooling and chemical vessels, mixing tanks, ion exchange beds, and filter presses. • Operates and controls pumping, cooling, heating, exhaust and associated systems to meet specifications within a wafer fabrication facility. • Observes gauges, signals, and recording instruments, turns valves, and moves controls to regulate temperatures, pressures, and flow of wastewater, DI water, and chemical constituents through system to affect prescribed reaction within critical limits. • Performs and leads diagnostic and troubleshooting practices to determine root cause and corrective actions needed to maintain systems operation within specifications. • Performs emergency and corrective maintenance actions to repair damaged equipment or correct out of specification conditions. • Ensures processing conditions and process output are within regulatory limits. Responsible for correcting conditions and alerting management of discrepancies. • Ensure all requirements as specified by the manufacturer of equipment systems are met, and equipment operations, repairs, modifications, and maintenance meet environmental protection requirements. • Develops, leads and reviews plans, specifications, and cost estimates, construction safety and phasing plans, and updating electrical infrastructure layout plans that require coordination with owners, other disciplines, sub-consultants, and clients. • Additional duties based on business needs, including ERT. Preferred Qualifications:

• Preference for candidates with experience in environmental facilities, large-scale plants, and construction site engineering projects in the semiconductor field. • Strongly prefer experience in facility management and maintenance of semiconductor/advanced manufacturing facilities. • Past experience in managing cleanroom utility equipment, facility optimization, energy-saving planning, and utility operations highly preferred.