Mechanical Technical Engineer - Vacuum Equipment (TE-VSC-BVO-2026-211-GRAE)

CERN; Genf; Vor Ort; CHF 59.000 - 65.000; Vollzeit

Benefits dieser Stelle

Relocation package

Health insurance

Pension plan

Paid leave 30 days

Zusammenfassung

CERN's Vacuum, Surfaces and Coatings (VSC) Group seeks a Mechanical Engineer to help upgrade the world’s most powerful accelerator by supporting vacuum system installation, testing and commissioning for the LHC upgrades. Training and international environment are provided.

Responsibilities include validating vacuum equipment, performing leak tests, bake-out, NEG activation, and documenting tests with cross-functional teams. On-site work in challenging environments is required.

Qualifikationen

• Experience with helium leak detection methods and equipment.
• Experience with on-site vacuum system work including mechanical installation and in-situ testing.
• Familiarity with outgassing in vacuum systems and RGA in UHV environments.
• Understanding of UHV principles and ability to analyze data from vacuum gauges.
• Ability to prepare and manage technical documentation.

Aufgaben

• Perform vacuum acceptance testing of baked components for HL-LHC collimator upgrade.
• Test and validate vacuum equipment before installation; ensure RGA meets requirements.
• Carry out leak tests, bake-out system installation, and NEG activation.
• Assemble and prepare mechanical and vacuum systems for installation and operation.
• Support installation, testing and commissioning of equipment for LHC upgrade programme.
• Prepare technical documentation, test reports and intervention records.
• Coordinate with suppliers and support procurement and delivery of components.
• Participate in maintenance, upgrade and repair activities in the LHC tunnel.

Kenntnisse

Helium leak detection

On-site vacuum work

UHV concepts

Vacuum gauge data analysis

Technical documentation

Ausbildung

Bachelor's or Master's degree in technical/ applied sciences

Tools

RGA (Residual Gas Analyzer)

Helium leak detector

Jobbeschreibung

Looking for an opportunity to apply your mechanical engineering skills to the upgrade of the world's most powerful particle accelerator? Join CERN's Vacuum, Surfaces and Coatings (VSC) Group and contribute to the upgrade of critical beam vacuum systems that are essential for the performance and reliability of the Large Hadron Collider (LHC).

Working alongside experienced engineers, technicians and physicists, you will support the installation, testing and commissioning of key equipment that will help prepare the LHC for future scientific discoveries. No prior experience in particle accelerators is required. We will provide all the necessary training and support, making this an excellent opportunity to develop specialist skills in a unique international environment.

Your responsibilities

• Perform vacuum acceptance testing of baked components intended for installation in the HL-LHC collimator upgrade.
• Test and validate vacuum equipment before installation, perform residual gas analysis (RGA) ensuring it meets performance and quality requirements.
• Carry out leak tests, bake-out system installation and non-evaporable-getter (NEG) activation on vacuum components and assemblies.
• Assemble and prepare mechanical and vacuum systems for installation and operation.
• Support the installation, testing and commissioning of equipment for the LHC upgrade programme.
• Prepare technical documentation, test reports and intervention records.
• Coordinate with suppliers and support the procurement and delivery of technical components.
• Participate in maintenance, upgrade and repair activities on equipment installed in the LHC tunnel.

Your profile

• Experience with helium leak detection methods and equipment.
• Experience with on-site vacuum system work, including mechanical installation and in-situ testing.
• Basic experience with outgassing phenomena in vacuum systems and with quadruple mass spectrometers (RGA) for residual gas analysis in UHV environments.
• Practical familiarity with techniques for achieving and maintaining UHV conditions.

Skills

• Understanding of ultra-high vacuum (UHV) principles and fundamentals.
• The ability to analyse data from ultra-high vacuum (UHV) gauges.
• Basic knowledge on how to assemble and install UHV-compatible components and systems.
• Knowledge of helium leak detector use and the ability to perform leak testing and interpret results.
• The ability to prepare, update, and manage technical documentation.
• 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 BSc in Technical and Applied Studies (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Job closing date: 20.09.2026 at 23:59 CEST.

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

Working hours: 40 hours per week

Job flexibility: Fully Onsite

Target start date: 01-November-2026

This position involves:

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

Job reference: TE-VSC-BVO-2026-211-GRAE

Field of work: Mechanical Engineering

Benchmark job: 301190 - Mechanical Technical Engineer

Global Benefits

• A monthly net stipend of either 5266 or 5793Swiss Francs per month depending on your degree.
• 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 and travel expenses) depending on your individual circumstances.
• Possibility to extend your contract up to 36 months.
• On-the-job and formal training including language classes.

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