Mechanical Engineer specialized in welding IWE / IWT (M/F)

• 25 September 2026
• 100%
• Indefinite period
• Sion

#

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

We operate a fleet of facilities including more than 40 hydroelectric power plants with an installed capacity of approximately 22% of the Swiss hydroelectric fleet (25% including pumping). 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, as well as industries. We are primarily active in Switzerland and intervene occasionally abroad.

Mechanical Engineer specialized in welding (IWE / IWT) ##

Workplace: Sion

Your mission: ##

Within the mechanical unit, you will participate in design, maintenance, and repair projects on hydroelectric structures and equipment in the fields of mechanical engineering and welding.
In collaboration with other engineers and with our workshops based in Martigny, you will provide your technical expertise to support specialized maintenance activities and the development of solutions adapted to operational needs.

Your responsibilities: ##

• Provide technical support to the maintenance managers of the various hydroelectric facilities
• Develop and implement technical solutions as part of large hydroelectric facility rehabilitation projects, in collaboration with the different technical units
• Budget the work to be carried out, prepare offers, and provide technical support to sales
• Manage projects in compliance with costs, deadlines, and quality requirements
• Organize and coordinate the interventions of suppliers and internal teams (welders, inspectors), in collaboration with the maintenance managers of the different sites
• Maintain the technical documentation of the facilities through study reports or end-of-work reports
• Perform and supervise manufacturing monitoring as well as the reception of parts at suppliers and in our workshops
• Participate in the coordination of welding activities in our Martigny workshops (WPS/PQR/WPQR) and at intervention sites
• Analyze and verify the technical documentation of suppliers, particularly welding procedures

Your skills: ##

• EPF or HES Engineer in mechanical engineering (or equivalent)
• IWE or IWT certification
• At least 5 years of experience in industry; 3 years of experience in the hydroelectric field is an asset
• Experience in the field of welding (development of WPS, review of welding procedures, design of mechanical-welding solutions, manufacturing monitoring, and inspections)
• Knowledge and/or certifications in the field of NDT (such as COFREND type) are an asset
• Great organizational capacity and ability to manage several projects or mandates simultaneously
• Autonomy, analytical spirit, and synthesis skills
• Good writing skills (technical documentation)
• French or German native language, good knowledge of the other language is a plus
• Taste for field work, with regular day trips to our different hydroelectric facilities (up to 30% of working time)

We offer attractive working conditions and a pleasant atmosphere, supported by corporate values. In a stimulating environment, you will 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. Deadline: 31.10.2026. For more information, the HR team is at your disposal: Write an email