Staff Engineer, Ultra-Pure Water - Peoria, AZ, United States
Originally posted 17 September 2026 by the employer.
About the role
The Staff Engineer, Ultra-Pure Water is responsible for the design, installation, commissioning, and ongoing operation of Ultra-Pure Water (UPW) systems for Amkor's OSAT factory. This includes RO, EDI, DI, and ultrafiltration systems to ensure water supply for the facility throughout the project lifecycle.
What you'll do
- Collaborate with UPW design vendors, review engineering drawings and submittals, and monitor construction progress. - Support commissioning activities, operational testing, and system validation, identifying and resolving abnormalities during construction and start-up phases. - Oversee the production and delivery of UPW to site production areas while collaborating with WWT/BRF engineering teams for integrated water management strategies. - Develop preventive maintenance programs, emergency response procedures, and manage technical documentation and handover processes. - Implement technology upgrades and perform system capacity planning, troubleshooting, and sustaining activities to meet production demands. - Conduct training and on-the-job training (OJT) for operations and maintenance teams, ensuring compliance with environmental regulations and corporate standards.
What you'll need
- Bachelor’s degree in Chemical, Mechanical, Environmental, or Process Engineering, or an equivalent combination of education, certifications, and directly related experience. - 8+ years of experience in UPW systems engineering (design and operations), preferably in semiconductor or high-tech manufacturing. - Experience in semiconductor facility design, construction, commissioning, and start-up. - Strong understanding of UPW systems, water treatment technologies, and industry standards, with knowledge of adjacent disciplines including automation, wastewater, gas, and chemicals. - Ability to read and interpret engineering drawings and specifications, with proficiency in MS Office, Bluebeam, and engineering tools. - Ability to regularly lift up to 50 lbs., work at elevation and in confined spaces with PPE, and medical qualification to wear a respirator.
Nice to have
- Master's degree. - Professional Engineering License (PE).
This role has been open 0 days — well below the 57-day median for Semiconductor Equipment Engineering roles.
Semiconductor Equipment Engineering · Manufacturing Equipment
|
Open roles in category
3904
|
Median days open
57 d
|
Median salary
$126k
|
See the full market breakdown ▾Category comparison, and who else is hiring
| Metric | Amkor | All employers we track in this specialty (3904 roles · 84 employers) |
|---|---|---|
| Open roles in this specialty | 15 | 3904 |
| Open roles in the wider Process, Fab & Equipment family | 51 | 10278 · 109 employers |
| Median days open | 0 d | 57 d (−57 d vs this employer) |
| Median salary (USD postings) | — | $126k |
Who's hiring in this category
- Applied Materials · 663 open roles · median 56 d
- Lam Research · 568 open roles · median 40 d
- KLA Corporation · 290 open roles · median 68 d
- Micron Technology · 270 open roles · median 51 d
- ASML · 183 open roles · median 81 d
- ASM International · 157 open roles · median 85 d
How we counted: 3904 open Semiconductor Equipment Engineering (Manufacturing Equipment) roles from 84 employers tracked in the SemiconductorJobs index, counted 28 Oct 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there — it is counted in the wider Process, Fab & Equipment family row. Figures refresh nightly.