Operation, Maintenance & Commissioning Engineer
Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 12, 2026. Ecolab scores B on the Alion truth index.
What is the Opportunity?
At Ecolab Ultra Pure Water+, we offer you the opportunity to expand your skills and professional experience while collaborating with worldwide experts in water treatment. We are seeking motivated individuals to join our Operation & Maintenance (O&M) team for Ultra-Pure Water (UPW) treatment systems.
Joining Ecolab means being part of a global team of innovative and passionate professionals who are committed to preserving water, our planet's most critical resource. It also means combining our efforts and talents towards a more sustainable future - together.
As an Operation, Maintenance and Commissioning Engineer, you will undergo intensive training to operate and optimize UPW systems. You will lead and guide operators, work with a digital twin software for simulation and quality modelling, and later participate in Commissioning projects where you will be responsible for starting-up equipment to reach final UPW quality specifications. In addition, you will support the establishment of local O&M teams on new sites, facilitating knowledge transfer and enabling the successful deployment of sustainable site operations.
The role is based directly on customer site and requires (100%) international travelling.
What is the role?
- Learn and operate UPW systems, from basic maintenance tasks to advanced troubleshooting of critical failures.
- Monitor plant performance and support process optimization initiatives to ensure compliance with operational and quality targets.
- Lead and support a team of operators in daily operations.
- Utilize and maintain Computerized Maintenance Management System CMMS systems for work order management, maintenance planning, asset history tracking and reporting.
- Participate in root cause analysis (RCA) investigations and contribute to continuous improvement initiatives.
- Collaborate with the internal tools for quality modelling and performance analysis.
- Support commissioning activities of new equipment, upgrades and plant modifications, including pressure testing and cold / hot commissioning.
- Load media and equipment (includes filtration, activated carbon, ion exchange, reverse osmosis, gas transfer membrane, electro-deionization, ultrafiltration, UV treatment, etc).
- Support hook-up activities in distribution loops.
- Adherence to safe working requirements and site Health & Safety regulations at all times.
Does this sound like you?
- Technical graduate education (bachelor’s degree or master’s degree) in Chemical Engineering, Mechanical Engineering, or related fields.
- Good knowledge in continuous process (Gas, Water, Pharma, or similar fields).
- A first experience in Commissioning, Start-up, Operation, Maintenance, Service, or similar.
- Ability to troubleshoot complex systems and good problem-solving skills.
- Ability to prioritise a busy workload and flexibility to adjust to rapid changes in work conditions.
- Strong interpersonal & intercultural skills and ability to work well with others.
- Capacity to take decisions and proactivity.
- Good communication skills: you will be the image of the company on site, in front of the customer.
- Working language is English (fluent), German and French are a plus.
Don't meet every single requirement? If you carry a strong sense of ownership and teamwork in everything you do, we'd like to hear from you any way.
Why work at Ecolab?
- An interesting and varied job in an exciting and innovative organization operating worldwide!
- Flexible and self-determined work attitude, outstanding team spirit and freedom in your area of expertise.
- Ecolab will offer you a technical training in the position related field.
- The possibility to develop your personal skills and to earn profound technical experience.
- At Ecolab we are committed to providing working environments where everyone is included and treated fairly and with respect.
Dive in - Apply Today! Let's change the future of water together.
Compensation Range:
The annual pay range for this position is €40.000 - €50.000 EUR.Benefits:
Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families. Click here to see our benefits.
Collective Agreement Information (Italy):
In Italy, Ecolab applies the Metalmeccanico Collective Labour Agreement.