Electrotechnician, Network Operations

Geneva, Switzerland
09 May 2019
End of advertisement period
31 Aug 2019
Contract Type
Fixed Term
Full Time

Company Description

At CERN, the European Organization 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. Find out more on

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization.

Job Description

Are you a technician looking for a challenging professional experience to further your career?  If so, joining CERN’s TTE programme may very well give you that challenge.  This position as an Electrotechnician is part of our prestigious TTE programme. 

The Electrical Engineering Group (EL) of the Engineering Department (EN) has the mandate to design, procure and operate CERN’s electrical power distribution networks. The CERN electrical network, supplied by 130 kV and 400 kV lines respectively from Switzerland and France, provides electrical power to a number of high-energy particle accelerators, large scale experimental areas, the Organization's computer centre and many office buildings on the various sites. The installed electrical power at the 18 kV level is rated at approximately 500 MVA.

The Network Operation Section (OP) is responsible for the operation of CERN's electrical distribution network: high and low voltage installations (400 kV, 66 kV, 20 kV, 18 kV, 3.3 kV, 400 V, 48V).


After a period of familiarization, as an electrotechnician in the Network Operation section, you will be responsible for the following operations associated with the procedures for the disconnection and isolation of high and low voltage equipment, and notably:

  • Prepare and carry out interventions on the high and low voltage electrical network, such as network reconfigurations, disconnection and isolation of equipment and making it safe, etc.;
  • Implement corrective measures (in the event of breakdowns or when safety or warning devices are triggered) and compile intervention reports and records;
  • Take delivery of new high-voltage and low-voltage systems; prepare and perform the associated commissioning tests;
  • Act as the technician responsible for the operations of one of the 10 areas of the CERN high and low-voltage electrical network;

Take part in the verification and follow-up of the conformity of contractors' activities and carry out inspections during interventions (maintenance contracts); issue certificates for work to be performed


In order to qualify for a place on the programme you will need to meet the following requirements:

  • You are a national of a CERN Member State or Associate Member State (;
  • You have a Technical Diploma in electro-technical field or equivalent (, and no more than 4 years' relevant experience after finishing your diploma;
  • If you are currently studying, you are still eligible to apply, although you are expected to have obtained your qualification by the start of your appointment at CERN;
  • If you hold a BSc or MSc, you are not eligible. However you may be eligible for the Fellowship Programme.
  • You should have at least a working knowledge of English or French.

Specific skills required for this job:

  • Commissioning, maintenance & operation of electrical distribution systems.
  • Commissioning, maintenance & operation of power systems (UPS) Maintenance and operation of safety systems).
  • Design of HV network & substations ; Knowledge of HV circuit breaker, HV transmission lines
  • Design of LV network & switchboards; Knowledge of 400V circuit breaker & fuses, design of safety networks, 48V, 400V, 3.3kV.
  • Knowledge of Diesel generators.
  • Use of Scientific and Engineering software packages.

Additional Information

CERN would very much like to benefit from your expertise, commitment and passion.  In return, CERN will provide you with:

  • An employment contract of one year, renewable for a second year; 
  • On-the-job and formal training at CERN as well as in-house language courses for English and/or French;
  • A take home pay of approximately 3,540 CHF per month (net of tax);
  • Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund;
  • Depending on your individual circumstances: an installation grant, family, child and infant allowances as well as travel expenses to and from Geneva;
  • 2,5 days of paid leave per month.

This is how you can apply:

You will need the following documents to complete your application:

  • A scanned copy of your latest relevant qualification;
  • At least one reference letter (from a professor or previous employer) giving an overview of your academic and/or professional achievements. This should be as broad as possible.
    • You can upload these letters at the time of application if you have them to hand. You will also be provided with a link as soon as you have submitted your application to forward to your referees to upload their letters confidentially. Please note this must be done before the closing date.

All applications should normally reach us no later than 31.08.2018.

Please make sure you have all the documents requested to hand as you start your application. Once submitted you will not be able to upload any documents or edit your application.