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.

Introduction

As a versatile electromechanical technician with experience in installing and maintaining a wide range of equipment, you will play a key role in the infrastructure upgrade and implementation of the ATLAS upgrade project (2026–2030). As part of the ATLAS Technical Coordination team, you will liaise with detector teams, contribute to the decommissioning of existing equipment, and participate in the installation and commissioning of the new rack infrastructure, while supporting detector teams in their installation work.

Functions

• Participate in the decommissioning of existing electronics racks.
• Contribute to the installation of new racks in the underground service caverns, including rack cooling and power distribution systems as well as ventilation turbines, to meet the future needs of the ATLAS detector systems.
• Participate in the commissioning of the racks and be responsible for the maintenance of rack cooling and power distribution systems, including spare parts management.
• Contribute to the assembly, installation, and maintenance of rack ventilation turbines.
• Support the upgrade and maintenance of the PLC-based Detector Safety System (DSS) hardware.
• Participate in cable routing and in the installation of electromechanical equipment for ATLAS detector infrastructure.
• Support the maintenance of common environmental control and monitoring devices (e.g., webcams, temperature, and humidity sensors, etc.).
• Support the operation, maintenance and refurbishment of the ATLAS surface facilities.
• Coordinate, in collaboration with the group responsible for Access & Alarms, the maintenance of the sniffer system used to monitor the concentration of smoke or flammable gas.
• Be part of the Detector Safety System (DSS) on-call team.

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

Experience:

• Demonstrated experience in the maintenance and assembly of electromechanical systems.
• Proven knowledge of electrical distribution, cabling, sensors and water cooling is required.
• Knowledge of ventilation and sniffer systems is an advantage.
• Proficiency in working on various projects in parallel.
• Experience in scheduling and coordinating maintenance work is an advantage.

Technical competencies:

• Construction, test and installation of electromechanical equipment and systems.
• Operation and maintenance of electromechanical equipment and systems.
• Operation and maintenance of electrical circuits and networks.
• Electromechanical testing.

Behavioural competencies:

• Working in Teams: building and maintaining constructive and effective work relationships.
• Demonstrating Flexibility: readily accepting new tasks or work/projects.
• Achieving Results: delivering high quality work on time and fulfilling expectations.
• Managing Self: working well autonomously; taking on activities and tasks without prompting.

Language skills:

Spoken and written English, with a commitment to learn French.

Eligibility and closing date:

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. 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 14.07.2026 at 23:59 CEST.

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:

• Participation in a regular stand-by duty, including nights, Sundays and official holidays.
• 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.
• Exposure to risk of falling from heights during scaffolding assembly and dismantling operations.
• Exposure to electromagnetic fields under certain exposure conditions.
• Given the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed.

Job grade: 3-4

Job reference: EP-ATL-SO-2026-129-LD

Field of work: Electrical or Electronics Engineering

Benchmark Job Title: Electromechanical Technician

Global Benefits

• A competitive salary (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.

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!

More information about us, here: careers.cern