Operations and Management Officer - Wastewater Treatment

What we will achieve together

Within the Industrial Ecology Energy Directorate, the Wastewater (WW) activity is responsible for transporting, treating wastewater from the canton and the cross-border region using treatment plants, and then discharging it into the natural environment.

The WW activity fulfils this role in compliance with federal and cantonal water laws and based on cantonal planning for water discharge.

As an Operations and Management Officer, your mission will be to ensure the optimal functioning of the Aire treatment plant and the St Jean pumping station, as well as the proper execution of operational works by joining the day operations team.

You will be attached to the Wastewater Operations unit, which is responsible for the operation, management and development of pumping stations and treatment plants using electromechanical, biological and chemical processes.

Your energy in the service of a sustainable Geneva

In your role, you will be responsible for:

• Monitoring and operating the deodorisation and Anammox facilities at the Aire treatment plant and the St Jean pumping station. Collaborating daily with teams on continuous shifts in other areas of the treatment plant with possible substitutions within these teams;
• Working with your foreman, team, operations engineers and unit manager to ensure the smooth technical and human operation of the plant and to resolve complex issues arising on the installations;
• Intervening in the facilities and supervising works and subcontractors;
• Contributing as a member of the operations team to the development of all installations within your scope;
• Participating in the commissioning of upcoming Aire 2+ facilities in collaboration with the reference engineers;
• Applying and enforcing health and safety regulations at work;
• Investing time in training on new technologies and new operational practices.

Your personality and skills

To assume the responsibilities of this position, you possess interpersonal skills, a good team spirit and a client and collaborative mindset.
You must be able to demonstrate reliability and commitment consistently and have a strong sense of mission accomplishment.
You enjoy fieldwork in a team.
Furthermore, you must have sound judgement in problem-solving and very good knowledge of the processes implemented in a treatment plant.
After training, you will join the on-call operations service for the Aire and St Jean treatment plant installations.

Your academic background:
You hold a Federal VET Diploma (CFC) in a technical profession or an equivalent qualification and have at least 1 year of technical experience in the operation and maintenance of wastewater treatment installations.
Holding the FES treatment plant operator certificate would be an advantage.

Joining SIG means participating in change!

SIG is a local public company serving the population, businesses and public authorities of Geneva. It provides a wide range of services in energy distribution, water and waste recovery. As the industrial arm of the State of Geneva, it is committed to an ambitious ecological transition.

Committed to promoting equality between women and men as well as diversity within its teams, our institution encourages applications from everyone, regardless of gender, origin or any other personal characteristic.

In areas where women are currently underrepresented, female applications are particularly encouraged.

Job posting no. 8241

Application deadline

27 November 2026