Communications Support Officer for the CMS Experiment

What you'll do

You will join the CMS Experiment, one of the four large detectors at the CERN Large Hadron Collider (LHC), and take a leading role in shaping and implementing CMS external communications. As Communications Support Officer, you will work within a small team of communication professionals and physicists to share the achievements, technologies and collaborative spirit of CMS with audiences ranging from policymakers to students and the general public. You will produce engaging scientific content across various media — including social media, videos, web pages and printed materials — and help organise communication events worldwide. Working closely with CMS management, CERN’s central communications team and other LHC communication groups, you will play a key role in promoting the impact and excitement of CMS science.

Your responsibilities

Support the CMS Head of External Communications and Deputy in the implementation and evolution of all aspects of the CMS strategic plan for external communications.
Support CMS Management, the CMS Head of External Communications, and the CMS Physics Communications Officers in the production (writing, editing, filming, etc.) and dissemination of information on the CMS physics programme, technological developments, and collaborative work through: Social media (including Instagram, YouTube, TikTok and others); the CMS public website and monthly newsletterPrinted and promotional materials (posters, brochures, 3D-printed models, etc.); events for external audiences, both locally to CERN and internationally
Liaise between the CMS External Communications team and CMS colleagues, in particular those responsible for physics communications, visits (in person and virtual), and detector subsystem communications.
Liaise between CMS and organizations such as CERN Communications, the LHC Outreach Group (LOG), the International Particle Physics Outreach Group (IPPOG), and other LHC experiment education and outreach teams.
Work closely with the CMS Internal Communications team on activities of common interest.
Supervise CERN graduates, students, and interns.

Still here? Let's make a quick check about

Your profile

A basic knowledge and understanding of particle physics and the scientific programmes of CERN, the LHC, and its experiments.
A strong track record in writing scientific content for non-expert audiences - ideally in a particle physics or CERN-related context - and in packaging this content for broad dissemination.
Skills in creating and editing scientific multimedia content, preferably related to particle physics. Familiarity with the Adobe software suite is considered an advantage.
Effective use of social media platforms to reach diverse audiences, including the ability to assess and evaluate the impact of content.
A proven ability to work successfully in multinational and multicultural environments, preferably within a scientific setting.
Bachelor's degree or equivalent relevant experience in the field of Science Communications or a related field.

Your skills

Strategic communications planning and science communications.
Audio-visual production; Social media; Text editing and proof-reading:
Selecting the appropriate medium and forum to communicate; expressing opinions, ideas and suggestions with conviction and in a logical/structured manner; keeping to the point.
Actively participating in the implementation of new processes and technologies; demonstrating openness to new ideas and situations; being willing to work on different projects simultaneously.
Working well in groups and readily fitting into a team; participating fully and taking an active role in team activities; acknowledging the contribution of colleagues; recognizing their limitations and offering support to overcome their difficulties; Building and maintaining constructive and effective work relationships.
Taking initiative beyond regular tasks and making things happen; using time efficiently and effectively; working well autonomously; taking on activities and tasks without prompting.
Driving work / projects along and seeing them through to their conclusion; having a structured and organised approach towards work; being able to set priorities and plan tasks with results in mind; defining clear objectives, milestones and deliverables before initiating work/ project.
Spoken and written English, with a commitment to learn French.

Ideal start date: 01/04/2026

Contract duration: 60

Grade range: 4

Benchmark job: 5B0170 - Communications/Public Relations/External Relations Support Officer

Job flexibility: Hybrid

Team supervision

Employment conditions

Work during nights, Sundays and official holidays, when required by the needs of the Organization.

Global Benefits at CERN

A minimum entry-salary of 6962 Swiss Francs per month (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.

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.
You have relevant qualifications and professional experience.
If you have previously held a Staff contract at CERN, you will not be eligible for these positions.
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

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.