Technical Engineer for Cryogenic Test Facilities (TE-CRG-CL-2026-99-LD)

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. 

Introduction

You will join a team working on advanced cryogenic cooling and measurement techniques and play a key role in the daily operation of the Cryolab, a unique research facility with test stands operating at temperatures down to 50 mK. You will focus on the development, operation and technical follow-up of these installations in close collaboration with users and colleagues.

Functions

• Contribute to the development of the operational principles of cryogenic test stands based on user needs and technical requirements.
• Work with the team to translate these principles into thermodynamic and mechanical design solutions.
• Coordinate the production of these test stands, following the agreed timeline and budget constraints.
• Plan and organise the Cryolab activities according to operational priorities, available personnel and liquid helium supply.
• Support Cryolab users in the operation of the test facilities, providing daily guidance on thermodynamics, low temperature instrumentation and operational procedures.
• Monitor the performance of active test stations by discussing the results and their analysis with users.
• Prepare and maintain technical documentation, operating procedures and records related to your activities.
• Contribute to preparation and delivery of cryogenic safety courses in collaboration with the Occupational Health & Safety and Environmental Protection Department.
• Become the safety contact for the buildings and activities under the Cryolab’s responsibility.

Bachelor's degree or equivalent relevant experience in the field of Mechanics, Electromechanics, Instrumentation or a related field.

 

Experience:

• Experience in cryogenics systems.
• Experience in the design, construction follow-up and commissioning of complex mechanical installations.
• Experience in preparing technical documentation, operating procedures and test records.

Technical competencies:

• Knowledge and application of cryogenic fluid and material properties.
• Knowledge and application of cryogenic heat transfer and insulation techniques.
• Operation and maintenance of cryogenic systems.
• Knowledge of low temperature instrumentation and measurement techniques.
• Knowledge of thermodynamics.

Behavioural competencies:

• Demonstrating Flexibility: demonstrating a willingness to accept changing circumstances; supporting initiatives for change.
• Learning and Sharing Knowledge: keeping up-to-date with developments in own field of expertise and readily absorbing new information.
• Working in Teams: working well in groups and readily fitting into a team; participating fully and taking an active role in team activities.
• Achieving Results: having a structured and organised approach towards work; being able to set priorities and plan tasks with results in mind.
• Managing Self: working well autonomously; taking on activities and tasks without prompting.

Language skills:

Spoken and written English or French, with a commitment to learn the other language.

Eligibility and closing date:

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. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 28.05.2026 at 23:59 CEST.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week

Job Flexibility: Fully Onsite

This position involves:

• 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.
• Stand-by duty, when required by the needs of the Organization.
• Exposure to electromagnetic fields under certain exposure conditions.
• Given the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed.

Job grade: 4-5

Job reference: TE-CRG-CL-2026-99-LD

Field of work: Mechanical Engineering

Benchmark Job Title: Mechanical Technical Engineer

Global Benefits

• A competitive salary (tax free), 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.

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!

More information about us, here: careers.cern