Job Description

You will join the team working with electrical substations and outdoor high-voltage installations at the 18 kV level. The purpose of these installations is the compensation of reactive power that is consumed by CERN's particle accelerators. In close cooperation with our experienced lead technical engineer, you will work on the two worksites for new projects, in HL-LHC P1 and P5.

Your responsibilities

• Realisation of 3-D mechanical drawings for the integration of racks and control chassis into high-voltage substations.
• Realisation of electrical circuit diagrams for the control and protection circuits.
• Realisation of protection and control chassis, including their installation, cabling and testing.
• Supervision of the work of contractors on the worksite (control racks and protection relays).
• Supervision and coordination of high-voltage cable installation work.
• Participation in the testing and commissioning of these new installations, including their controls, remote supervision and protection systems.
• Study, integration, implementation, and testing new controls and protection relays for other similar high-voltage projects.
• Participation in dielectric testing of insulation systems.

Your profile

• Experience working in electrical installations (high-voltage or low voltage).
• Experience working in a team.
• Worksite experience.

Skills:

• Knowledge of and adherence to worksite safety rules.
• Construction, testing and installation of electrical systems.
• Technical document and test report writing.
• Spoken and written English or French, with a commitment to learn the basics of the other language.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Electricity (or a related field) and your highest educational qualification is a general secondary education diploma.
• You have never had a CERN fellow or graduate contract before.
• Applicants with a Bachelor's, Master's or PhD degree are not eligible.

Additional Information

Job closing date: 19.02.2026 at 23:59 CET.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Job flexibility: Fully Onsite

Target start date: 01-June-2026

This position involves:

• A valid driving licence.
• Exposure to electromagnetic fields under certain exposure conditions.

Given the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed.

Job reference: SY-EPC-HPC-2026-9-GRAE

Field of work: Electrical or Electronics Engineering

Benchmark job: 300040 - Electrical Technician

Global Benefits

• A monthly stipend of 4687 Swiss Francs per month (tax free).
• 30 days of paid leave per year plus 2 weeks annual closure.
• Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Family, child and infant monthly allowances depending on your individual circumstances.
• A relocation package (installation grant and travel expenses) depending on your individual circumstances.
• Possibility to extend your contract up to 36 months.
• On-the-job and formal training including language classes.

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