Mechanical Maintenance & Reliability Engineer

HYDRO Exploitation SA is a leading service provider primarily active in the operation and maintenance of electrical production facilities. Under one roof, we bring together all the specific skills of our profession, from maintenance staff to engineering.

We operate a portfolio of facilities including more than 40 hydroelectric power plants with an installed capacity of about 22% of the Swiss hydroelectric fleet (25% including pumped storage). Together, these facilities produce nearly 16% of Swiss hydroelectric energy.

Thanks to our unique expertise, we offer high value-added services that meet the varied needs of our clients as well as the most demanding quality standards. Our service portfolio is aimed at electric companies, public authorities, transport companies, and industries. We are mainly active in Switzerland and occasionally operate abroad.

Mechanical Maintenance & Reliability Engineer

Workplace: Sion

Your mission:

Within the operations management unit, you play a key role in the reliability, availability, and development of hydroelectric installations in collaboration with other units. You are the guarantor of efficient, flexible, and sustainably future-oriented operation.

Your responsibilities:

• Ensure a comprehensive vision of the technical and strategic challenges of the facilities and maintain their coherence over time.
• Participate in design reviews, carry out preventive inspections during overhauls, and validate project handovers to operations.
• Support field teams in resolving failures, closely liaising with technical experts.
• Lead cross-functional analyses, capitalise on feedback, and promote a continuous improvement dynamic.
• Optimise and flexibilise maintenance work according to the priorities of each partner.
• Participate in integrating digitalisation projects into the operational process.
• Develop the CMMS and contribute to the transition towards Maintenance 5.0.
• Analyse installation performance via 4.0 platforms and propose optimisation actions.
• Conduct reliability and maintenance flexibilisation studies to strengthen operational performance.
• Develop standardised maintenance plans and tools that encourage knowledge capitalisation and sharing.
• Design training modules for the on-call service and participate in the engineer on-call duty.

Your skills:

• ETH or University of Applied Sciences engineer in mechanical engineering.
• Comfortable managing multiple projects simultaneously in a dynamic environment.
• Strong interest in data, statistical analyses, and risk assessment methods.
• Marked sensitivity to digital innovation and new technologies, with good programming skills.
• Autonomy and proactivity, with strong analytical and synthesis abilities.
• Ability to manage technical challenges in a matrix organisation, coordinating various stakeholders.
• Native German or French speaker with very good knowledge of the other language.
• Excellent interpersonal skills: listening, collaboration, ability to persuade and work with diverse teams.

We offer attractive working conditions and a pleasant atmosphere, supported by corporate values. In a stimulating environment, you have the opportunity to contribute to the operation and development of HYDRO.

If this challenge interests you, please send us your complete application file (cover letter, CV, diplomas, certificates) via our online portal, which will be treated confidentially.
Deadline: 23 August 2026.
For more information, the HR team is at your disposal: jobs@hydro.ch