Environmental Engineer

Switzerland flag Geneva, Switzerland HSE-ENV-PM-2026-38-LD Ideal start date: 01/06/2026
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Before 09/03/2026 at 23:59 (Geneva Time)

What you'll do


As an Environmental Engineer, you will actively contribute to support CERN in limiting its impact on the environment, mainly in the domains of water protection and hazardous substances.



Your responsibilities

  • Act as the organisation’s reference expert for environmental protection in the domain of water and in the domain of hazardous substances.
  • Monitor, evaluate and address all existing and emerging issues related to effluent water quantity and quality and to hazardous substances.
  • Analyse and propose mitigation measures on water-related issues and hazardous substances linked to the CERN campus, industrial facilities, accelerators and experiments.
  • Propose common applicable environmental requirements for projects and existing activities.

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Your profile

  • Experience in providing technical expertise, in particular for environmental protection in the water domain and hazardous substances, within multi-disciplinary teams operating technical installations.
  • Hands-on chemical pollutants (metals, organic or emerging pollutants), including monitoring, characterisation, and mitigation strategies.
  • Experience in the technical application of environmental regulations.
  • Hands-on experience with ecotoxicology subjects with the understanding of chemical and biological impacts on aquatic environments would be an asset.

Your skills

  • Knowledge of EU regulations, in particular linked to water protection or hazardous substances (knowledge of French or Swiss Environmental regulations is an asset).
  • Environmental protection, environmental evaluations and implementation of prevention measures.
  • Stakeholder relationship management.
  • Drafting and writing of official documents in both French and English.
Ideal start date: 06/01/2026
Contract duration (in months): 60
Grade range: 6
Benchmark job: 200070 - Health, Safety and Environment Engineer
Job flexibility: Fully Onsite

Employment conditions

  • A valid driving licence.
  • Work during nights, Sundays and official holidays, when required by the needs of the Organisation.
  • Stand-by duty, when required by the needs of the Organisation.
  • Work in Radiation Areas.
  • Interventions in underground installations.

Global Benefits at CERN

  • A minimum entry-salary of 9236 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 HSE Department drives CERN’s Safety Policy, promoting a corporate and preventive Safety culture across the Organization.

It provides expertise and support in radiological and conventional safety as well as environmental protection. The Department also manages emergency services, including the CERN Fire and Rescue Service and Medical Service.

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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