Operation & Maintenance Technician/Engineer – UPW Plant

The Ultra-Pure Water+ division of Ecolab is an engineering company specialized in ultrapure water (UPW) treatment systems.

We are looking for an Operation & Maintenance Technician/Engineer – Ultra Pure Water (UPW) Plant to be based in Marin-Epagnier (CH) is reporting to Operation & Maintenance Manager. The candidate should have technical expertise, problem solving capabilities and understanding of critical utility systems, particularly in process environments (preferably in water treatment systems).

Joining Ultra-Pure Water+ 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.

Role Summary

In this role, you will be responsible for preventive and corrective maintenance, troubleshooting, and data collection for UPW systems. You will play a key role in ensuring system reliability through timely and effective support in a critical manufacturing environment.

Key responsibilities include:

- Support commissioning, start-up and installation of new equipment, upgrades and plant modifications.
- Execute daily field rounds, collecting operational and process data, and reporting anomalies through established procedures.
- Perform daily, preventative and corrective maintenance on water treatment equipment and ancillary systems.
- Monitor plant performance and support process optimization initiatives to ensure compliance with operational and quality targets.
- Troubleshoot and diagnose mechanical, electrical, instrumentation and process-related faults, ensuring timely restoration of plant operations.
- Ensure accurate completion of maintenance records, inspection reports and operational documentation.
- Perform Water quality sampling and field analysis.
- Perform basic calibration, inspection and troubleshooting activities on instrumentation and control systems.
- 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.
- Maintain work areas, workshops, equipment and storage locations in accordance with 5S principles, ensuring high standards of housekeeping, safety and operational efficiency.
- Operate in full compliance with company procedures, environmental regulations, quality requirements and HSE standards, maintaining a strong focus on safety, operational excellence and customer satisfaction.

Who We Are Looking For

- Technical background in Mechanical, Electrical, Industrial Maintenance or a related field.
- Experience in operation and maintenance activities within industrial facilities, preferably in water or wastewater treatment plants.
- Strong troubleshooting and problem-solving skills.
- Ability to interpret technical documentation, procedures and drawings.
- Familiarity with computerized maintenance management systems (CMMS).
- Basic knowledge of instrumentation, automation and process control systems.
- Strong attention to safety, environmental compliance and quality standards.
- Good organizational skills and attention to detail.
- Ability to work both independently and as part of a multidisciplinary team.
- Positive attitude, flexibility and willingness to learn and develop new skills.
- Commitment to maintaining high housekeeping standards and promoting a 5S culture.
- Readiness for “On call support” for customer sites

Working Conditions

- Availability to work on an 8.30-hour basis per day including minimal mandatory presence 08h30-12h00 / 13h30-17h00, 5 working days a week
- Occasional traveling within EU and CH for trainings, meetings, presentations, coordination and reviews.
- Expected language skills: Good French, minimum B2 level , English B2
- Valid Category B driving license

What we offer:

- An interesting and varied job in an exciting and innovative organization operating worldwide
- The possibility to further develop your personal skills and to earn profound project management experience
- Training and professional development opportunities
- 24 days of holidays, 6 additional flex days, and possibility of extra holidays
- A competitive salary and insurances for accidents, disability and pension

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