Electromechanical Technical Engineer for the CMS Experiment (EP-CMS-IC-2026-98-LD)

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 an electromechanical technical engineer, you will engage in the major upgrades of the CMS experiment at CERN, leading modification and consolidation work on the infrastructure and electrical services for the CMS detector, both underground and on the surface of the experimental area. Your responsibilities will cover a wide range of activities, from dismantling and decommissioning to the reinstallation of electronic racks, electrical distribution systems, cooling piping, power and signal cables, and building renovation. You will also have a coordination role within the CMS technical coordination team, defining needs and resources, placing orders, and closely supervising the work performed by technical service teams and subcontractors.

Functions

• Supervise and follow up on the decommissioning and subsequent reinstallation of electronics and power racks in the underground area, coordinating different teams.
• Manage infrastructure projects deployed progressively, including the installation of services such as power distribution, HVAC, and building renovation.
• Take responsibility for the coordination and validation of infrastructure works in both the underground and surface experimental areas of the CMS experiment.
• Organise the required technical support from central technical teams for each work package you lead.
• Prepare and maintain field operation planning.
• Perform day-to-day follow-up of site activities carried out by technical support teams and subcontractors.
• Monitor work progress, report to CMS experiment management, and adjust plans and resources as required.
• Support projects with logistical and operational assistance.
• Act as the territorial safety officer for underground and/or surface buildings.

Bachelor's degree or equivalent relevant experience in the field of Electromechanical Engineering or a related field.

Experience:

• Solid experience in supervising and following up on technical work integrating multiple disciplines (construction, mechanical, electrical, cooling).
• Proven ability in organising teamwork and coordinating on-site technical activities.
• Successful experience working effectively within multidisciplinary teams.
• Proficiency in ensuring safety in the workplace.
• Experience in the installation and handling of equipment.
• Solid knowledge in project management, including drafting technical specifications, placing orders, managing contracts, and monitoring quality and progress.
• Knowledge of project planning tools and related software.
• Ability to read 2D and 3D designs; experience in producing 2D and 3D drawings is an advantage.
• Experience in radio-protection and work in classified areas, as well as in the installation and verification of scaffolding and the use of mobile elevating work platforms, would be a plus.

Technical competencies:

• Operation and maintenance of electromechanical equipment and systems.
• Definition and installation of transport systems.
• Specification and follow-up of technical aspects of a contract.
• Project management.
• Team management.
• Knowledge and application of manufacturing methods and work preparation.

Behavioural competencies:

• Demonstrating Flexibility: being willing to work on different projects simultaneously.
• Communicating Effectively: ensuring that information, procedures and decisions are appropriately documented.
• Working in Teams: building and maintaining constructive and effective work relationships.
• Leading with Strength and Credibility: making timely decisions that balance systematic analysis with decisiveness; dealing with difficulties in a timely manner.
• Achieving Results: driving work / projects along and seeing them through to their conclusion.

Language skills:

Spoken and written both English and 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 28.05.2026 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:

• 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.
• Shift work, when required by the needs of the Organization.
• Exposure to lead.
• Radiation worker, category A.
• 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: 4-5

Job reference: EP-CMS-IC-2026-98-LD

Field of work: Mechanical Engineering

Benchmark Job Title: Electromechanical Technical Engineer

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