Commissioning Engineer (EN-EL-MO-2026-30-GRAP)
Join CERN's Electrical Engineering team to support the operation and commissioning of its electrical transmission and distribution network. We are looking for a motivated electrical engineer with experience in power system testing and commissioning, and solid knowledge of High Voltage and Low Voltage installations and protection systems. You will play a key role in delivering new and upgraded infrastructure during CERN's Long Shutdown 3 and beyond.
Your responsibilities
- Lead or co-lead commissioning of HV and LV electrical systems including switchgears, transformers, circuit breakers, UPS, 48 V DC systems and protection relays.
- Develop commissioning procedures, test plans and risk assessments.
- Execute advanced commissioning tests covering protection logic, SCADA communication and interlocking functions.
- Diagnose commissioning issues and implement corrective actions.
- Coordinate with project teams, operations and external suppliers.
- Produce commissioning reports and maintain CERN documentation.
- Support operational activities, including periodic network testing when required.
- This role includes team supervision responsibilities.
Your profile
- Proven experience in Electrical Engineering, Power Systems, Protection and Control, or Commissioning.
- Hands-on experience with HV/LV equipment, protection relays and power system operation.
- Practical experience in testing or commissioning electrical systems is an asset.
Skills
- Operation and maintenance of electrical circuits and networks.
- Construction, test and commissioning of electrical circuits and networks.
- Organisation, planning and control, including supervision of works.
- Ability to work independently and manage commissioning tasks within project frameworks.
- Strong problem-solving skills, communication abilities and field-work readiness.
- Spoken and written English, with a commitment to learn French.
Eligibility criteria:
- You are a national of a CERN Member or Associate Member State.
- You have a professional background in Electrical Engineering (or a related field) and have either:
- a Master's degree with 2 to 6 years of post-graduation professional experience;
- or a PhD with no more than 3 years of post-graduation professional experience.
- You have never had a CERN fellow or graduate contract before.
Additional Information
Job closing date: 10.03.2026 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-April-2026
This position involves:
- Work during nights, Sundays and official holidays.
- Work in Radiation Areas.
- Interventions in underground installations.
- A valid driving licence.
- Stand-by duty, and work during nights, Sundays and official holidays, when required by the needs of the Organisation.
- 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: EN-EL-MO-2026-30-GRAP
Field of work: Electrical or Electronics Engineering
Benchmark job: 301140 - Electrical Technical Engineer
Global Benefits
- A monthly stipend between 6372-7004 Swiss Francs per month (tax free) depending on your degree.
- 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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