Mechanical Technician (SY-RF-AC-2025-157-GRAE)

Your responsibilities

Join the technical team of the Amplifiers & Couplers (AC) Section within the Radio Frequency (RF) Group at CERN!

As a Mechanical Technician, you will contribute to the mechanical development of projects using the CATIA CAD software (2D and 3D design). You will be involved in the entire lifecycle of components: design, procurement, project follow-up, preparation, and packaging.

You will also have the opportunity to receive training in various advanced techniques used in the field of superconducting cavities, including cryogenic testing, metal surface treatments, cleanroom work, ultra-high vacuum technology, high-precision mechanical assembly, and RF measurements. These technologies are implemented by the entire team, and you will gain valuable hands-on experience in each area under the supervision of experienced technicians and engineers.

As a technician, you will also contribute to quality documentation and be fully integrated into the R&D team, which includes engineers and students. This work is part of a broader initiative aimed at enhancing the performance of current accelerators and paving the way for future high-energy machines. In this context, the Superconducting RF (SRF) section of the RF group defines the required cavity specifications and evaluates their performance (quality factor, maximum electromagnetic fields) using dedicated cryogenic test stands. A wide range of advanced technologies is employed in the SRF facilities.

Your profile

Skills:

• Proficient in CAD software (2D and 3D design);
• Strong team-building skills and ability to collaborate effectively;
• Highly motivated, dynamic, and solution-oriented;
• Strong willingness to learn and continuously improve;
• Spoken and written English or French, with a commitment to learn the basics of 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 Mechanics (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.

Job closing date: 12.09.2025 at 23:59 CEST.

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

Working hours: 40 hours per week

Target start date: 01-October-2025

This position involves:

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

Job reference: SY-RF-AC-2025-157-GRAE

Field of work: Mechanical Engineering

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.