Gas Systems and Worksite Supervision Technician

What you'll do

You will join us as a Gas Systems & Worksite Supervision Technician, supporting and coordinating gas management activities across experimental areas. You will contribute to the maintenance, upgrade, and installation of gas infrastructures, ensuring reliable operations for the world’s largest particle accelerator complex.

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Your responsibilities

Supervise the onsite works for the projects of consolidation and extension of the existing gas network, including coordination with other activities such as civil engineering, transport and handling, cooling and ventilation, IT systems carried out by other groups at CERN.
Ensure safety compliance of the activities in the worksites of the assigned projects, and that they are performed in respect of the applicable rules and requirements.
Contribute to the preparation and the review of the design of the gas systems developed within the contractors and project teams.
Technically coordinate and oversee the contractors performing operational works and deliveries related to gas supply on site, preparing and carrying out acceptance tests, checking contractual documentation, planning and checking and validating quality and quantities prior to payment.
Organise and execute smaller works, from needs' definition, design, cost estimate, procurement up to onsite installation and handover to the operation and maintenance teams.
Write reports and technical notes describing scope, status and progress of the gas works

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Your profile

Proven experience in the operation, and maintenance of gas distribution systems.
Proven experience in storage and handling of cryogenic fluids
Proven experience in technical coordination of contractors
Records of training on gas handling safety risks (oxygen deficiency hazard, flammable, oxidising).
Initial experience in project follow-up would be considered as an asset.
Higher technical diploma or equivalent relevant experience in the field of Electrotechnical Instrumentation or a related field.

Your skills

Design, construction, operation and maintenance of detector gas distribution systems.
Configuration and implementation of industrial data-acquisition, monitoring and control systems: (PLC and SCADA)
Functional analysis of control system.
Technical knowledge of gaseous fluids, pressure equipment, and instrumentation (PID, pressure, temperature, and flow transmitters)
Having a structured and organised approach towards work; being able to set priorities and plan tasks with results in mind; Working conscientiously and reliably; delivering on promises.
Finding the information needed to solve problems; making objective judgments based on all the facts available; Supporting and acting in accordance with team decisions; accepting joint responsibility for team successes and shortcomings.
Spoken and written English or French, with a commitment to learn the other language.

Ideal start date: 01/02/2026

Contract duration: 60

Grade range: 3

Benchmark job: 300090 - Mechanical Technician

Job flexibility: Fully Onsite

Team supervision

Employment conditions

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.

Global Benefits at CERN

A minimum entry-salary of 5850 Swiss Francs per month (tax free), increasing in line with your years of relevant experience.
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, removal, travel expenses) depending on your individual circumstances.
Possibility to extend your contract up to 8 years + eligibility for indefinite contract tenure.

Let's get you ready

Be sure to meet the eligibility criteria

You are a national of a CERN Member State or Associate Member State.
You have relevant qualifications and professional experience.
If you have previously held a Staff contract at CERN, you will not be eligible for these positions.
Please pay attention to the additional criteria and requirements for this specific position and mentioned above.

You will need these documents to complete your application

Your CV (English or French)
Any document you consider relevant to your application

Your CERNDepartment

The BE department is at the heart of CERN's accelerator complex.

It is responsible for the design, construction, and operation of accelerators and technical infrastructure that provide the cutting-edge scientific instruments needed by the physics community.

Overview of CERN

Discover a world where the impossible is made possible!

At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.

Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.

If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

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Still have a doubt ? Here are the most frequently asked questions

What should I expect during my first week at CERN?

Your onboarding at CERN includes a comprehensive induction programme, which starts with an official welcome session at the beginning of each month. In addition, you will receive important information both before and after your arrival to ensure a smooth transition into your new role. This process is designed to help you get acquainted with CERN’s environment, your team, and the tools and systems you’ll be using.
How big would the team be?

The size of the team you'll be working with at CERN depends on the specific role and department. Some teams are small and highly specialized, while others are larger and more interdisciplinary. During the interview process, you'll have the opportunity to learn more about the team structure for the position you are applying for.
What is the working language at CERN?

The working languages at CERN are English and French. However, it is not always mandatory to speak both languages to work at CERN. We offer language training to help you acquiring the other language.
What support does CERN provide for relocation?

CERN does not offer direct assistance with relocation. However, depending on your role and specific criteria, you may be eligible for certain benefits such as an installation allowance and coverage of travel expenses to join CERN. These benefits are designed to help ease the transition when relocating to the Geneva area. For more information, please consult the “Salary, Benefits and Support“ page.
Do I need a visa to work at CERN?

Whether you need a visa to work at CERN depends on your nationality and the duration of your stay. CERN assists with the necessary visa and work permit processes for its employees and visitors. The specific requirements will be communicated to you during the recruitment process.
What would my salary be?

Salaries at CERN are determined by a structured scale. Salaries are based on your role, qualifications, and experience, and are not subject to negotiation. Specific details will be provided as your application progresses. For more information, please refer to the dedicated page.