Facilities Wastewater Technician

Amkor Technology, Inc. (Nasdaq: AMKR) is the world’s largest U.S. headquartered OSAT and is a global leader in outsourced semiconductor packaging and test services. With a strong track record of innovation, a broad and diverse geographic footprint and solid partnerships with lead customers, Amkor delivers high-quality solutions that enable the world’s leading semiconductor and electronics companies to bring advanced technologies to market. The company’s comprehensive portfolio includes advanced packaging, wafer-level processing, and system-in-package solutions targeting applications for smartphones, data centers, artificial intelligence, automobiles and wearables. For more information visit amkor.com.

Position Summary

Amkor Technology Arizona is seeking an experienced Wastewater Technician, responsible for operating, monitoring, maintaining, and troubleshooting the site’s wastewater treatment & BRF systems.

Job Responsibilities

• Operate and monitor inorganic and organic wastewater treatment components such as equalization tanks, lift stations, clarifiers, filter press, decanterss, neutralization skids, sludge handling systems, and chemical dosing equipment.
• Perform routine plant rounds, equipment checks, data logging, and performance monitoring.
• Maintain consistent effluent quality to meet permitted discharge requirements.
• Operate and maintain BRF systems including evaporators, concentrators, crystallizers, heat exchangers, brine pumps, and associated process controls.
• Monitor salinity, concentration levels, evaporation efficiency, flow rates, and system temperatures to maintain stable BRF performance.
• Perform routine inspections for scaling, fouling, leaks, vibration, abnormal noises, or process upsets.
• Respond to alarms, system trips, loss of cooling, heater issues, or brine carryover events.
• Collect wastewater and brine samples for internal and external lab analysis (pH, TSS, COD, conductivity, hardness, metals, and process‑specific contaminants).
• Calibrate and maintain field/lab instruments such as pH probes, conductivity meters, turbidity sensors, and online analyzers.
• Review trends, identify deviations, and initiate corrective actions.
• Perform PMs and repairs on pumps, valves, mixers, blowers, chemical dosing systems, evaporators, heat exchangers, filters, sensors, and instrumentation.
• Troubleshoot system failures such as flow blockages, pump seal failures, overheating equipment, chemical feed issues, scaling buildup, and instrumentation inaccuracies.
• Support cleaning procedures including descaling, line flushing, membrane maintenance, and evaporator cleaning intervals.
• Safely handle treatment chemicals including acids, caustics, coagulants, flocculants, antiscalants, oxidizers, and BRF system cleaning agents.
• Maintain detailed system logs, flow totals, chemical usage, sampling records, instrument calibrations, and maintenance activities using CMMS tools.
• Ensure wastewater and brine reduction operations comply with state, local, and internal environmental regulations.
• Support inspections, audits, incident reporting, and permit compliance documentation.
• Assist with startup, commissioning, and qualification of new wastewater and BRF equipment.
• Collaborate with engineering to optimize brine concentration cycles, evaporator performance, chemical dosing efficiency, and system reliability.
  
  

Required Qualifications

• 3 years of experience in wastewater treatment, industrial water systems, or similar utility operations.
• Understanding of chemical and physical wastewater treatment methods, including brine concentration
• Ability to read P&IDs, flow diagrams, equipment manuals, and SOPs.
• Experience with sampling, lab instruments, and wastewater quality monitoring.
• Ability to work in industrial treatment environments including tanks, evaporators, chemical rooms, and utility spaces.
  
  

Preferred Qualifications

• Experience in semiconductor, chemical, refinery, or heavy industrial wastewater treatment.
• Experience with evaporators, concentrators, or crystallization systems associated with BRF operations.
• Wastewater operator certifications (Grade I/II/III) or equivalent technical credentials.
• Familiarity with SCADA/BMS systems used for process monitoring and controls.
• Strong mechanical aptitude for pumps, heat exchangers, and process equipment.
  
  

Physical Requirements

• Ability to work in various weather conditions and awkward positions.
• Ability to lift up to 50 lbs and work in mechanical spaces, rooftops, and equipment rooms.
• Exposure to sharp, hot, and cold equipment.
• Must be medically qualified to wear a respirator.
• Ability to climb ladders, work at elevation, and in confined spaces with PPE.
  
  

Location:

Peoria, AZ. This position is onsite. During the construction phase and initial onboarding period, employees will work a standard Monday–Friday schedule of 8:00 a.m. to 5:00 p.m. As the facility transitions into manufacturing operations, the role will move to a 12-hour compressed workweek schedule. Shift assignments may include day or night shifts, weekends, and holidays, and will be determined based on business and operational needs.

Amkor is proud to be an Equal Opportunity Employer. We do not discriminate on the basis of race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state or federal law or local ordinance.