CMS DSS Electronics Technician

What you'll do

You will join a small technical team of engineers and technicians responsible for the design, prototyping, assembly, testing and installation of the Detector Safety System (DSS) and the subdetector safety systems. The team is also responsible for the operation of the existing central DSS system before its replacement by the new DSS system. You will also interface with the team in charge of the subdetector safety systems and the group in charge of the definition of the DSS architecture. This position offers an excellent opportunity for a young professional to gain hands-on experience in applied electronics projects, contributing to large-scale industrial infrastructures in a cutting-edge technological environment.

Your responsibilities

Support the various activities associated to the construction and testing of the new CMS DSS.
Connect and configure the electronic cards and crates.
Take part in the manufacturing and installation of the electronic crates for the safety systems.
Follow up the installation of the cables for the signals exchanged between the central DSS and the subdetector safety systems and the other technical services, at Point 5 and in the CMS laboratories at CERN.
Take part to DSS testing and commissioning activities.
Support the DSS expert for programming the alarm action matrix of the CMS detector.
Collate the data, prepare the reports, and upload the documentation in the database.
Follow up and present the progress of the works done by the DSS team to CMS Safety and Technical Coordination teams.

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Your profile

Knowledge of industrial communication protocols (PROFINET, OPC UA, Modbus, PROFIBUS) for the interfaces between DSS and other control systems;
Knowledge and experience in electricity;
Knowledge and practical experience of sensor readout chains and signal wiring design;
Basic experience with cable assembly, connectorisation, and EMC practices;
Basic experience with electrical CAD tools (e.g. SEE Electrical, EPLAN, Autocad Electrical) for preparing and updating electrical schematics and cable lists;
Your studies focused on Electronics Engineering.

Your skills

Basic experience with Siemens PLC Simatic Step7 programming;
Electronic design;
Familiarity with WinCC OA or similar SCADA systems, for the communication between safety and control systems;
Familiarity with CATIA or any mechanical CAD tools, for cable integration follow-up, to visualise rack layouts and cable routing during integration;
Spoken and written English or French, with a commitment to learn the other language.

Ideal start date: 01/04/2026

Contract duration: 24 month contract

Job flexibility: Fully Onsite

Medical hazard

Exposure to risk of falling from heights during scaffolding assembly and dismantling operations.
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.

Employment conditions

A valid driving licence.
Residence in the immediate vicinity of the Organisation's installations.
Stand-by duty, and work during the nights, Sundays and official holidays, when required by the needs of the Organization.
Interventions in underground installations.
Work in Radiation Areas.

Global Benefits at CERN

A monthly stipend of 4624 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.

Let's get you ready

Be sure to meet the eligibility criteria

You are a national of a CERN Member State or Associate Member State.
By the application deadline, you have a maximum of 2 years of professional experience since graduation in a technical or administrative field and your highest educational qualification is a general secondary education diploma or a shorter non-university degree. You can’t hold a bachelor’s degree, master’s degree or PhD.
You have never had a CERN fellow or graduate contract before.
Please pay attention to the additional criteria and requirements for this specific position and mentioned above.

You will need these documents to complete your application

Your CV (English or French)
Any document you consider relevant to your application
A copy of your most relevant diploma or a certificate of achievement from your school (if you don't yet have your paper diploma)

Your CERNDepartment

The EP department conducts research in experimental particle physics and serves as a key reference center for the European physics community, contributing to the education and training of young scientists.

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!

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Still have a doubt ? Here are the most frequently asked questions

What should I expect during my first week at CERN?

Your onboarding at CERN includes a comprehensive induction programme, which starts with an official welcome session at the beginning of each month. In addition, you will receive important information both before and after your arrival to ensure a smooth transition into your new role. This process is designed to help you get acquainted with CERN’s environment, your team, and the tools and systems you’ll be using.
How big would the team be?

The size of the team you'll be working with at CERN depends on the specific role and department. Some teams are small and highly specialized, while others are larger and more interdisciplinary. During the interview process, you'll have the opportunity to learn more about the team structure for the position you are applying for.
What is the working language at CERN?

The working languages at CERN are English and French. However, it is not always mandatory to speak both languages to work at CERN. We offer language training to help you acquiring the other language.
What support does CERN provide for relocation?

CERN does not offer direct assistance with relocation. However, depending on your role and specific criteria, you may be eligible for certain benefits such as an installation allowance and coverage of travel expenses to join CERN. These benefits are designed to help ease the transition when relocating to the Geneva area. For more information, please consult the “Salary, Benefits and Support“ page.
Do I need a visa to work at CERN?

Whether you need a visa to work at CERN depends on your nationality and the duration of your stay. CERN assists with the necessary visa and work permit processes for its employees and visitors. The specific requirements will be communicated to you during the recruitment process.
What would my salary be?

Salaries at CERN are determined by a structured scale. Salaries are based on your role, qualifications, and experience, and are not subject to negotiation. Specific details will be provided as your application progresses. For more information, please refer to the dedicated page.