Electrical Engineer – Power Transformers

What you'll do

You will join the team working on oil-filled and cast-resin transformers for power converter applications. In the framework of the project, many oil-filled transformers will be replaced by cast-resin transformers, for environmental reasons. You will design studies for power transformers and power converter systems, redaction of technical specifications, tendering, follow-up of industrial production of transformers, factory testing and quality management, as well as activities for installation and commissioning of power transformers. As part of the design studies, you will work on simulation models for power converter systems for the correct dimensioning of the power transformers for particle accelerator operation. In addition, you will take increasing responsibility for the maintenance activities of oil-filled and cast-resin transformers, including the supervision and coordination of contractors working at CERN. You’ll be part of a team of skilled technicians and passionate engineers, responsible for the operation, maintenance, and new projects of high-power converter systems in the power range between 1 and 150 MW.

Your responsibilities

Electrical design studies and simulations of cast-resin transformers and their associated power converters.
3D mechanical design studies for transformer integration onto their transformer pits.
Redaction of technical specifications for cast-resin transformers and participation in the procurement process.
Management of contracts and participation in the supervision of contractors' personnel.
Cooperation with the manufacturer for the detailed design process of transformers.
Participation in the follow-up of the factory consolidation of large oil-filled transformers.
Validation, type and routine testing in the factory.
Participation in installation and commissioning of transformers.
Participation in the supervision of consolidation of transformer pits.
Participation in operation and maintenance.

Still here? Let's make a quick check about

Your profile

Experience in power transformers.
Experience in power electronics.
Experience with high-power systems, such as engineering, design, manufacturing, installation, commissioning, operation, and/or maintenance.
Experience in design and modelling of high-power converter systems (MATLAB SIMULINK, PSIM).
Your studies focused on Electr. Engineering / Power Electronics.

Your skills

Design and modelling of high-voltage electrical circuits and networks.
Knowledge and application of power electronics techniques.
Design and modelling of power electronic components and systems (MATLAB SIMULINK or equivalent).
Construction, test and commissioning of electrical components and systems.
Operation and maintenance of power electronic components and systems.
Spoken and written English or French, with a commitment to learn the other language.

Ideal start date: 01/03/2026

Contract duration: 24 month contract

Job flexibility: Fully Onsite

Employment conditions

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

Global Benefits at CERN

A monthly stipend between 5196-5716 Swiss Francs per month (tax free) 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.

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 the respective field and your highest educational qualification is either a bachelor’s or master’s degree. You must have a university degree and can’t hold a 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 SY department oversees the technical systems related to accelerator beams, including instrumentation, beam transfer, power converters, and radio frequency systems.

It is responsible for the operation, maintenance, and development of new hardware and software for CERN’s accelerator complex.

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.