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3D Integration Designer (EN-ACE-INT-2025-223-GRAE)

Are you a young mechanical designer eager to work in a multidisciplinary team?

Do you enjoy teamwork and want to apply your skills in 3D design?

If so, you might be the designer we’re looking for!

In this central role, you’ll contribute to the development of 3D models for devices to be installed in our particle accelerators. Your work will include producing detailed technical drawings and defining scan areas for reverse engineering, all within a collaborative and innovative environment.

Join us and help shape the future of science through precision engineering.

Your responsibilities

Join CERN during Long Shutdown 3 ( LS3 ) for a unique opportunity to work directly on the LHC machine, deep inside the collider tunnels.

This is a central role, embedded within the core teams working on the LHC. You’ll collaborate closely with experts from multiple disciplines to ensure the successful integration of new systems and upgrades.

In this position, you will:

• Participate in 3D integration studies for accelerator equipment and associated services.
• Acquire on-site laser scanning experience for reverse engineering.
• Present your work in technical meetings across various teams.
• Receive specialised CAD training (Catia - PLM) to support your design activities.

For more information, click here .

Your profile

Skills:

• 3D CAD Software, CATIA or equivalent;
• Ability to work in a team;
• Analytical skills;
• Spoken and written English or French, with a commitment to learn the other language.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State .
• By the application deadline, you have a maximum of two years of professional experience since graduation in Mechanical Engineering (or a related field) and your highest educational qualification is a general secondary education diploma .
• You have never had a CERN fellow or graduate contract before.
• Applicants with a Bachelor’s, Master’s or PhD degree are not eligible.

Additional Information

Job closing date: 17.11.2025 at 23:59 CET.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Job flexibility: Hybrid

Target start date: 01-January-2026

This position involves:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.

Job reference: EN-ACE-INT-2025-223-GRAE

Field of work: Mechanical Engineering

Benchmark job: 300090 - Mechanical Technician

What we offer

• A monthly stipend of 4624 Swiss Francs (net of tax) .
• Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund .
• Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year .
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

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. Find out more on http://home.cern.

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.

I’m interested