Mechatronics Technician for Optical Link (EP-ESE-BE-2026-104-GRAE)

Take part in fabricating and assembling electronic and opto-electronic test systems.

This opening is not available anymore. Do not try to apply for this job.

CERN - European Organization for Nuclear Research

Open positions at CERN

Geneva (Switzerland)

Entry

Show advice for this position

Open application form

Overview

Take part in fabricating and assembling electronic and opto-electronic test systems.

You have:

Hands-on experience in mechanical parts manufacturing.
Basic understanding of compact CNC machines.
Familiarity with electronic board assembly, cable and wiring fabrication.
Performed assembly, wiring, and testing of electromechanical assemblies.
A maximum of two years of professional experience since graduation in Technician in Mechatronic / Mec / Elect (or related field).
Your highest educational qualification is a general secondary education diploma.
Must be a national of a CERN Member or Associate Member State.
Have never had a CERN fellow or graduate contract before.
Applicants with a Bachelor's, Master's or PhD degree are not eligible.

Contract

This is a Entry Level contract. More about Entry Level contracts.

Early Access to Job Openings: Daily Alerts for Pro Members

UN Talent Pro

Details

Job Description

You will take part in the fabrication and assembly of a wide range of electronic and opto-electronic test systems used to evaluate component performance.

Using various machines in our mechanical workshop (CNC routers, milling machines, lathes, drill presses, etc.), you will manufacture parts to support the activities of the ESE group.

You will also contribute to building wiring harnesses that connect devices to test systems, including for use in demanding environments such as radiation test facilities. In addition, you will assist in assembling and testing large-scale setups.

Your responsibilities:

Use machine tools to create mechanical parts for test setups.
Assemble wiring and fibre harnesses.
Solder electronic components onto PCBs.
Design simple PCBs after receiving training if necessary.
Carry out testing of cabling harnesses and assembled electronic circuits using a range of laboratory instruments.

Your profile:

Hands-on experience in mechanical parts manufacturing.
Basic understanding of compact CNC machines.
Familiarity with electronic board assembly, cable and wiring fabrication.
Performed assembly, wiring, and testing of electromechanical assemblies.

Skills:

Ability to read and interpret mechanical drawings and Electronic schematics.
Ability to operate conventional machine tools.
Capable of building, wiring and testing Electromechanical assemblies.
Working in teams: effective collaboration within multi-disciplinary teams.
Spoken and written English, with a commitment to learn French.

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 Technician in Mechatronic / Mec / Elect (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: 31.05.2026 at 23:59 CEST.

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

Job flexibility: Fully Onsite

Target start date: 01-September-2026

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.

Job reference: EP-ESE-BE-2026-104-GRAE

Field of work: Electrical or Electronics Engineering

Benchmark job: 300050 - Electromechanical Technician

Global Benefits

A monthly stipend of 4687 Swiss Francs per month (tax free).
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.

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

Apply now

Potential interview questions

Describe a project where you used CNC machines to manufacture parts. What challenges did you face?	The interviewer wants to understand your hands-on experience and problem-solving skills in mechanical manufacturing.	Discuss specific tools you used and the outcome of the project.
Can you explain a time when you worked with a multi-disciplinary team? How did you ensure effective collaboration?	The interviewer seeks to gauge your teamwork and collaboration skills in a technical environment.	Pro members can see the explanation.
What precautions do you take when working in demanding environments like radiation test facilities?	Pro members can see the explanation.	Pro members can see the explanation.
Explain your approach to assembling and testing wiring harnesses.	Pro members can see the explanation.	Pro members can see the explanation.
What is your experience with soldering electronic components onto PCBs? Can you provide an example?	Pro members can see the explanation.	Pro members can see the explanation.
Have you designed any PCBs before? What software or tools did you use?	Pro members can see the explanation.	Pro members can see the explanation.
Describe a situation when you had to work under pressure or tight deadlines. How did you manage it?	Pro members can see the explanation.	Pro members can see the explanation.
How do you plan to improve your skills in mechanical and electronic assembly?	Pro members can see the explanation.	Pro members can see the explanation.