The Assistant Departmental Safety Officer (ADSO) contributes to the implementation of the department's safety policy.

You will support the Departmental Safety Officer in identifying, preventing, and monitoring risks related to activities, infrastructure, and equipment, while ensuring compliance with applicable regulations and procedures.

The ADSO actively participates in promoting a strong safety culture and maintaining a safe and compliant working environment.

Your responsibilities:

Within the EN Department Safety team, your responsibilities will include:

• Analysing accidents and hazardous situations, and contributing to the definition of corrective and preventive actions.
• Supporting the Departmental Safety Officer (DSO) in implementing the department's safety actions.
• Participating in the organisation of planned evacuations and in feedback/lessons-learned activities following these exercises.
• Drafting and communicating prevention and safety awareness messages.
• Taking part in safety inspections and on-site visits to verify compliance and identify areas for improvement.
• Contributing to the monitoring of action plans and the promotion of a strong safety culture.

Your profile:

• Experience participating in the analysis of incidents and hazardous situations as part of a safety team.
• Experience supporting safety prevention initiatives and awareness activities.
• Experience contributing to the preparation, coordination, and organisation of planned evacuation procedures.

Skills:

• Knowledge of the main occupational health and safety risks.
• Good knowledge of office software tools (Word, Excel).
• Strong verbal and written communication skills.
• Proactive mindset, autonomy, and adaptability.
• 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 Occupational Health and Safety (OHS (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Job closing date: 14.06.2026 at 23:59 CEST.

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

Working hours: 40 hours per week

Job flexibility: Fully Onsite

Target start date: 01-September-2026

This position involves:

• Work in Radiation Areas.
• Interventions in underground installations.
• 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 reference: EN-RMS-2026-147-GRAE

Field of work: Health, Safety and Environment

Benchmark job: 200070 - Health, Safety and Environment Engineer

Global Benefits

• A monthly stipend between 5266-5793 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.

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