Mechanical/Electromechanical Technician, ATLAS ITk Upgrade

Mechanical/Electromechanical Technician (ATLAS ITk Upgrade)

Geneva, Switzerland EP-DT-EO-2026-215-LD Ideal start date: 01/01/2027

Before 29/11/2026 at 23:59 (Geneva Time)

What you'll do

The CERN ATLAS Team plays a major role in the construction of the future silicon ATLAS Inner Tracker (ITk). In particular, the CERN Detector Technologies (DT) team focuses on the realisation of the Pixel Outer Barrel for the ITk. Our activities include the design, prototyping and assembly of the support structures and tooling as well as the final detector integration, installation and testing. As a mechanical/electromechanical technician in the CERN-DT Team, you will join the Engineering Office Section (EP-DT-EO) and work closely with personnel from the ATLAS Group (EP-ATL) and the Technical Coordination Team of the ATLAS Experiment in the design and construction of the ATLAS ITk Pixel Outer Barrel.

Your responsibilities

• Participate in the production, testing and installation of the Pixel Outer System services and their support structures (e.g. trolleys).
• Support the design, manufacturing and installation of temporary services and infrastructure for testing during the integration of the Pixel Detector.
• Participate hands-on in the integration of the Pixel Outer System and its insertion into ITk in the SR1 cleanroom, contributing to the development and fabrication of the corresponding tooling.
• Participate in the ITk installation in the ATLAS cavern, supporting preparation of Pixel services for installation as well as connections after insertion.
• Document manufacturing and installation procedures as well QC information of tools and production parts to ensure traceability.

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Your profile

• Demonstrated experience in conventional precision machining of metallic and non-metallic parts, using both conventional and non-conventional methods.
• Good understanding of mechanical and electrical drawings, including geometrical tolerance specifications.
• Demonstrated experience in the assembly of complex, high precision mechanical systems with high quality standards.
• Proven experience in manufacturing and installation of cable bundles and harnesses.
• Proven experience with of structural joining techniques, particularly adhesive bonding and orbital welding.
• Previous experience in computer numerically controlled (CNC) machines would be considered an asset.
• Experience in the use of CAD software (ideally Catia V5) for the 2D and 3D modelling would be considered an asset.
• Previous experience in CAD-CAM programming (preferably using WORKNC) would be considered an asset.
• Higher technical diploma or equivalent relevant experience in the field of Precision Mechanics or a related field.

Your skills

• Manufacturing of mechanical parts.
• Knowledge and application of joining techniques, glueing, welding.
• Production of 2D drawings and 3D models (ISO dimensioning, tolerancing).
• Programming and use of CNC machine-tools and machining centres.
• Precision assembly of mechanical structures and equipment
• Delivers high quality work on time and fulfilling expectations.
• Adapts quickly and resourcefully to shifting priorities and requirements; works well in groups and readily fits into a team; participates fully and takes an active role in team activities. At the same time, works well autonomously, taking on activities and tasks without prompting.
• Adopts a pragmatic approach, understanding the value of adopting generic rather than ‘gold -plated' technical solutions.
• Spoken and written English or French, with a commitment to learn the other language.

Ideal start date: 01/01/2027

Contract duration (in months): 36

Grade range: 3-4

Benchmark job: 300090 - Mechanical Technician

Job flexibility: Fully Onsite

Employment conditions

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

Global Benefits at CERN

• A minimum net entry-salary of 5929 Swiss Francs per month, 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. Currently, we cannot consider applications from Pakistani, Lithuanian, Latvian, Cypriot, Croatian and Turkish nationals, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
• 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 EP department conducts research in experimental particle physics in close collaboration with and supporting the wider scientific community working at CERN. This includes designing and operating experiments, developing and constructing detectors, acquiring and analysing physics data.

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.
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• 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.
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