Global UPW Commissioning Engineer - Start-Up & Handover

Ecolab, Inc.; Witterswil; On-site; CHF 90,000 - 140,000; Full time

Job summary

Ecolab, Inc. is seeking a Commissioning Engineer to perform start-up and commissioning of Ultrapure Water plants at customer sites, with extensive international travel (100%).

The role requires technical degrees and hands-on commissioning experience to achieve final UPW quality specs. You will collaborate with project managers, verify installation integrity, load process media, and execute IQ, OQ, and FAT per project demands.

Qualifications

• Technical graduate education in Chemical or Mechanical Engineering.
• Strong understanding of continuous process systems in regulated environments.
• Hands-on experience in commissioning, start-up, operation, maintenance, or technical service roles.
• Ability to troubleshoot complex systems with analytical thinking.
• Fluent in English; German/French an advantage.
• Swiss or EU citizenship or valid Swiss work permit.

Responsibilities

• Collaborate with Project/Construction Managers to track progress against project milestones.
• Introduce water into UPW system and verify installation integrity via pressure testing.
• Load and commission media and equipment (ion exchange resins, RO, UF, UV).
• Perform system flushing and conditioning to meet UPW specs.
• Manage wastewater during commissioning with stakeholders.
• Lead IQ/OQ/FAT activities per project/quality requirements.
• Provide plant training to customers on process fundamentals and procedures.
• Complete final plant certification and support handover to customer.
• Prepare commissioning documentation including test results and deviations.
• Diagnose and resolve start-up/commissioning technical issues.
• Adhere to site Health & Safety regulations.

Skills

Troubleshooting

Analytical thinking

Intercultural collaboration

Strong communication

Fluent English

Education

Bachelor's or Master in Chemical/Mechanical Eng

Tools

IQ/OQ/FAT procedures

Pressure testing

Job description

Ecolab, Inc. is seeking a Commissioning Engineer to perform start-up and commissioning of Ultrapure Water plants at customer sites, with extensive international travel (100%).

The role requires technical degrees and hands-on commissioning experience to achieve final UPW quality specs. You will collaborate with project managers, verify installation integrity, load process media, and execute IQ, OQ, and FAT per project demands.