Job Description

Your responsibilities

Join the team responsible for the vacuum systems of the High-Luminosity Large Hadron Collider (HL-LHC), a project that will enhance the performance of the world’s most powerful accelerator. In this role, you will contribute to the management and execution of in-situ heating installations for the vacuum system.
You will work across dedicated workshops, laboratories, and the LHC tunnel area, collaborating closely with students, trainees, experienced technicians, and engineers in a stimulating and international environment.

Your main responsibilities will include:

• Taking part in on-site interventions in the LHC tunnel, including the installation of heating systems directly on vacuum equipment.
• Assisting with logistics and supporting the purchasing process for vacuum components used in thermal treatments.
• Managing the storage and organisation of equipment within the section.
• Preparing materials required for laboratory work and tunnel interventions.
• Performing preventive and corrective maintenance on heating racks used for thermal treatment of the vacuum system.
• Recording and maintaining accurate documentation for all vacuum interventions.
• Future possibility to take part in assembling mechanical vacuum components and performing helium leak tests on subassemblies or complete accelerator vacuum equipment.

Your profile

Skills:

• Proven experience in maintaining electrical installations.
• Solid knowledge of electrical systems and components.
• Practical hands-on skills in using tools and testing equipment.
• Ability to diagnose and repair malfunctioning components and systems would be an advantage.
• Strong teamwork skills and ability to collaborate effectively in a technical environment.
• 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 Electrical Technology (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: 06.11.2025 at 23:59 CET.

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

Working hours: 40 hours per week

Target start date: 01-March-2026

This position involves:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.
• Work during nights, Sundays and official holidays, when required by the needs of the Organization.

Job reference: TE-VSC-BVO-2025-218-GRAE

Field of work: Electrical or Electronics Engineering

What we offer

• A monthly stipend of 4624 Swiss Francs (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: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

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 http://home.cern.

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.