Experienced Electrical Worksite Supervisor (EN-EL-EPM-2025-132-LD)

Company Description

At CERN , the European Organisation for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature.

Job Description

Introduction

The Engineering Department  (EN)  pushes back the limits of technology so that physicists can carry out their research. Within the Electrical Group of the Engineering Department (EN-EL), you will join the Electrical Project Management Section (EPM), which is responsible for the management of projects related to the consolidation and upgrade of CERN’s electrical transmission and distribution network.

Functions

You will ensure the site supervision and management for projects ranging from high voltage networks to low voltage installations, as well as:

• Supervise the onsite works for the projects of consolidation and extension of the existing electrical network, including coordination with non-electrical activities such as civil engineering, transport and handling, cooling and ventilation, IT systems carried out by other groups at CERN.
• Be responsible for the safety of the activities in the worksites of the assigned projects, ensuring that they are performed in respect of the applicable rules and requirements.
• Contribute to the preparation and the review of the design of the electrical systems developed within the project team.
• Technically supervise and coordinate the contractors performing works on site, preparing and carrying out acceptance tests, checking contractual documentation, planning and checking and validating quality and quantities prior to payment.
• Coordinate and perform installation, test and commissioning activities on electrical equipment.
• Be responsible for the organisation and the execution of smaller electrical works, from needs’ definition, design, cost estimate, procurement up to onsite installation and handover to the operation and maintenance teams.
• Redact reports and technical notes describing scope, status and progress of the electrical works
• Take part in the regular standby duty for troubleshooting on the electrical network.

Qualifications

Technical certificate or general secondary education or equivalent relevant experience in the field of Electricity or a related field.

Experience:

• Proven experience in site supervision of large electrical projects such as electrical substations or industrial installations, in both high and low-voltage;
• Proven experience in organisation, coordination, and execution of electrical works, including preparation and verification of technical folders, supervision of works, and acceptance of electrical installations;
• Good theoretical knowledge of high and low voltage electrical systems and networks;
• Experience with installation, testing, and commissioning of high and low voltage electrical systems and networks;
• Experience with photovoltaic installations is considered an asset.

Technical competencies:

• Organisation, planning, and control, including work supervision;
• Execution of electrical works and construction, test, and commissioning of electrical circuits and networks;
• Commissioning, maintenance & operation of electrical circuits and networks;
• Technical coordination of contractors.

Behavioural competencies:

• Achieving results:
  • driving work/projects along and seeing them through to their conclusion.
• Communicating effectively:
  • ensuring that information, procedures and decisions are appropriately documented.
• Demonstrating flexibility:
  • demonstrating a willingness to accept changing circumstances;
  • supporting initiatives for change.
• Managing self:
  • Working well autonomously, taking on activities and tasks without prompting.
• Working in teams:
  • Building and maintaining constructive and effective work relationships.

Language skills:

Spoken and written English or French, with a commitment to learn the other language.

Additional Information

Eligibility and closing date:

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organisation. Employing a diverse workforce is central to our success. We welcome applications from all Member States and Associate Member States .

This vacancy will be filled as soon as possible, with a start date on 01.01.2026, and applications should normally reach us no later than 24.08.2025 at 23:59 CEST.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week

This position involves:

• Participation in a regular stand-by duty, including nights, Sundays and official holidays.
• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.
• Shift work, when required by the needs of the Organisation.

Job grade: 3-4

Job reference: EN-EL-EPM-2025-132-LD

Benchmark Job Title: Electrical Technician