Company Description

At CERN, the European Organisation 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.

Job Description

Introduction

Join CERN’s Beams Department, Experimental Areas Group, Engineering and Configuration Management Section 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.

Functions

You will ensure the daily operation and maintenance of gas systems at CERN, providing site supervision and management for projects ranging from small dewar installations to site industrial piping, as well as:

• 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.

Qualifications

Higher technical diploma or equivalent relevant experience in the field of Electrotechnical Instrumentation or a related field.

Experience:

Proven experience in:

• The operation, and maintenance of gas distribution systems;
• Storage and handling of cryogenic fluids;
• 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.

Technical competencies:

• 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 systems;
• Technical knowledge of gaseous fluids, pressure equipment, and instrumentation (PID, pressure, temperature, and flow transmitters).

Behavioural competencies:

• Achieving Results: having a structured and organised approach towards work; being able to set priorities and plan tasks with results in mind.
• Demonstrating Accountability: working conscientiously and reliably; delivering on promises.
• Solving Problems: finding the information needed to solve problems; making objective judgements based on all the facts available.
• Working in Teams: supporting and acting in accordance with team decisions; accepting joint responsibility for team successes and shortcomings.

Language skills:

Spoken and written English or French, with a commitment to learn the other language.

Additional Information

Eligibility and closing date:

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organisation. Employing a diverse workforce is central to our success. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 23.11.2025 at 23:59 CET.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week

Job Flexibility: Fully Onsite

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 Organisation.

Job grade: 3-4

Job reference: BE-EA-EC-2025-228-LD

Field of work: Mechanical Engineering

Benchmark Job Title: Mechanical Technician