Sr. Engineer, Facilities Mechanical Process (ATA)

Amkor Technology, Inc.; Tempe (AZ); On-site; USD 95,000 - 140,000; Full time

Job summary

Amkor Technology, Inc. in Arizona is seeking an experienced Sr. Engineer, Facilities Mechanical Process to lead the design, installation, commissioning, and operation of process utility systems for the OSAT factory.

This role ensures reliable delivery of utilities to support cleanroom and manufacturing operations. The candidate will collaborate with design consultants, review drawings, support commissioning, and drive improvements in reliability, efficiency, and sustainability while addressing

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• 3+ years of experience in process utility systems engineering (design and operations).
• Experience in semiconductor or high-tech manufacturing preferred.
• Familiarity with cleanroom standards and adjacent disciplines (HVAC, exhaust).

Responsibilities

• Collaborate with design consultants to ensure process utility system requirements are met.
• Review engineering drawings, submittals, and monitor construction progress.
• Support commissioning activities, including equipment preparation and operational testing.
• Identify and resolve abnormalities during construction and start-up phases.
• Manage documentation, manuals, and handover processes for process systems.
• Provide operational and maintenance support for chilled water systems, cooling towers, steam systems, and process vacuum systems.

Skills

Process utilities

Reading drawings

Troubleshooting

Team collaboration

Education

Bachelor's degree in Mechanical Engineering

Tools

AutoCAD

Revit

MS Office

Bluebeam

Job description

Career Opportunities: Sr. Engineer, Facilities Mechanical Process (ATA) (28879)

Requisition ID28879-Posted01/12/2026-Facilities-Regular Exempt Full-Time Employee

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 facilities Process Engineer, responsible for the design, installation, commissioning, and operation of process utility systems for Amkor’s OSAT factory. This includes chilled water, cooling towers, condenser water, process cooling, steam and hot water systems, reclaim water, potable water, and process vacuum systems. This role ensures reliable and efficient delivery of utilities to support cleanroom and manufacturing operations.

Essential Duties and Responsibilities:

Responsibilities will evolve throughout the project lifecycle, ranging from design and commissioning to full-scale operations, requiring adaptability and a proactive approach to each phase.

• Collaborate with design consultants to ensure process utility system requirements are met.
• Review engineering drawings, submittals, and monitor construction progress.
• Support commissioning activities, including equipment preparation and operational testing.
• Identify and resolve abnormalities during construction and start-up phases.
• Manage documentation, manuals, and handover processes for process systems.
• Provide operational and maintenance support for chilled water systems, cooling towers, steam systems, and process vacuum systems.
• Address Out-of-Control Action Plan (OCAP) conditions in cleanroom environments related to temperature, humidity, and process utility pressure deviations.
• Monitor system performance through trend analysis, inspections, and technical reporting.
• Identify and implement energy-saving opportunities across process systems to support sustainability goals.
• Research and implement technology upgrades to improve reliability, efficiency, and safety.
• Perform system capacity planning, troubleshooting, and sustaining activities to meet production demands.
• Partner with operations and maintenance teams to optimize system performance and streamline maintenance strategies.
• Conduct system evaluations and implement improvements through capital and expense projects.
• Apply reliability engineering principles, including FMEA and root cause analysis, to improve system performance.
• Review tool process schematics during hook-up phase and perform engineering inspections.

Essential Duties and Responsibilities:

• Bachelor’s degree in Mechanical Engineering or related field.
• 3+ years of experience in process utility systems engineering (design and operations), preferably in semiconductor or high-tech manufacturing.
• Strong understanding of chilled water systems, cooling towers, steam systems, and process vacuum systems.
• Ability to read and interpret engineering drawings and specifications.
• Familiarity with cleanroom standards and adjacent disciplines (HVAC, exhaust systems).
• Proficiency in AutoCAD, Revit, MS Office, and Bluebeam.
• Strong analytical, decision-making, and troubleshooting skills.
• Experience in semiconductor facility design, construction, commissioning, and start-up.
• Professional Engineering License (PE) is a plus.

Physical Requirements:

• Ability to work in various weather conditions and awkward positions.
• Regularly lift up to 50 lbs. and adjust heavy objects.
• 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:

This position will be based at the Arizona Tempe and Peoria sites during the Construction phase and will transition to Peoria for management during the Factory Operation phase.

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.