Electrical Design Technician (Low Voltage)

About the role

CERN's Electrical Engineering Group (EN-EL) manages the electrical power-distribution network (400 kV down to 400/230 V), the fibre-optics infrastructure and the signal and DC-power cabling for the accelerator complex. You will join the Electrical Design and Documentation Office (EN-EL-DDO) as a support electrical designer, creating and modifying electrical drawings, designing low-voltage distribution networks, sizing cables and equipment, and carrying out LV protection studies. The role is fully onsite, starts on 1 January 2027 and lasts 24 months, with a possible extension up to 36 months.

Key responsibilities

• Prepare design drawings using CAD software.
• Prepare calculation notes using ElecCalc/Caneco BT or similar.
• Prepare bills of material and cabling tables in Excel.
• Update Excel-based design templates and carry out general quality-related tasks in the design office.
• Oversee quality activities such as managing the printing office and maintaining templates.

Required profile

• Up to two years of professional experience since graduation in Electrical Engineering (or a related field).
• Highest qualification is a general secondary education diploma; applicants with a Bachelor's, Master's or PhD are not eligible.
• No previous CERN fellow or graduate contract.
• Spoken and written English or French, with a commitment to learn the basics of the other language.
• Valid driving licence; work involves radiation areas and underground installations.

Required skills

• Design of low-voltage distribution networks, cable sizing and selectivity studies.
• Drawings in AutoCAD or similar; intermediate Excel.
• Knowledge of European LV standards, protection, earthing systems and power-system calculations (voltage drop, short-circuit, fault levels).
• Experience with low-voltage design tools such as ElecCalc or Caneco.
• Beneficial: DIALux for lighting design, E-PLAN, and medium-voltage design experience.

What we offer

• Monthly stipend of 4,687 CHF (tax-free).
• 30 days of paid leave plus 2 weeks annual closure.
• Health insurance coverage for yourself, spouse and children, and membership of the CERN Pension Fund.
• Family, child and infant allowances, and a relocation package depending on circumstances.
• On-the-job and formal training, including language classes.