Mechanical Engineer – ATLAS ITk Pixel Detector

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 engineer 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 on the design, construction and installation of the ATLAS ITk Pixel Outer System.

Your responsibilities

Design of precision tooling for the integration, testing and installation of the ITk Pixel Outer System Detector, comprising the Outer Barrel, Endcaps and Inner System Support Tube.
Design and develop service installation procedures and tooling, including temporary service management solutions for testing of the ITk Pixel Detector.
Verify the design of components and tooling according to the relevant standards and best engineering practices, performing both, analytical and numerical calculations.
Develop, document and implement tools and procedures for integration and installation of detector components and services.
Participate hands-on in the detector integration work in the ATLAS SR1 cleanroom as well as the preparation on surface and in the cavern for the installation.
Prepare technical specifications for components and tools, following up their production, acceptance and installation.
Support preparation of and participate in the ATLAS ID detector extraction.

Still here? Let's make a quick check about

Your profile

Proven experience in the design of precision mechanical components and assembly tools for complex systems.
Demonstrated experience in the use of CAD software for 3D modelling and management of large assemblies. Proficiency in Catia V5 would be a plus.
Demonstrated experience in the production of 2D technical drawings according to the relevant standards for dimensioning and tolerances (e.g. ISO Geometrical Product Specifications, GPS).
Proven hands-on experience in the construction and testing of mechanical systems.
Demonstrated experience drafting technical specifications, assembly procedures and engineering reports.
Experience with assembly of sensitive equipment in a clean room environment is advantageous.
Experience with structural joining techniques, particularly orbital welding is advantageous.
Master's degree or equivalent relevant experience in the field of Mechanical or Aerospace Engineering or a related field.

Your skills

Design and analysis of mechanical structures.
Production of 2D drawings and 3D models (ISO dimensioning, tolerancing).
Integration of mechanical systems.
Knowledge and application of numerical modelling in solid mechanics.
Knowledge and application of joining techniques, welding.
Delivers high quality work on time and fulfils expectations.
Adapts quickly and resourcefully to shifting priorities and requirements, adopting a pragmatic approach. Understands the value of adopting generic rather than 'gold -plated' technical solutions.
Builds and maintains constructive and effective work relationships, but also works well autonomously. Takes on activities and tasks without prompting.
Spoken and written English, with a commitment to learn French.

Ideal start date: 01/01/2027

Contract duration (in months): 54

Grade range: 6

Benchmark job: 200090 - Mechanical Engineer

Job flexibility: Fully Onsite

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 net entry-salary of 9236 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!

Ready To apply?

Be prepared with our resources and tips

All good?

Apply now Allow 15 minutes to complete your online application

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.