Full-Stack Software Engineer (Java, JavaScript)

Switzerland flag Geneva, Switzerland EN-IM-AMM-2025-240-LD Ideal start date: 01/03/2026
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Before 04/01/2026 at 23:59 (Geneva Time)

What you'll do


  • Join the team behind CERN’s Asset and Maintenance Management Platform, a cornerstone system managing over 3 million assets 24/7 across one of the world’s most complex research infrastructures.

  • Work in an Agile, DevOps-oriented environment, collaborating with experts in software engineering, data management and operations to continuously improve critical enterprise systems.
  • Full-stack development, enterprise applications, Java/Spring and React frameworks, RESTful integrations, HxGN EAM, DevOps and Agile practices, user experience design, data integrity, cybersecurity, scalability and performance are just a few of the keywords related to this position.


  • Your responsibilities

    • Participate in software design, system architecture, and integrations with enterprise applications.
    • Take responsibility for implementing modern, high-performing, and responsive web applications, as well as robust backend services.
    • Conduct and coordinate code reviews, testing, monitoring, and general system management tasks, including configuration, and deploying upgrades and patches.
    • Document your work and progress to facilitate teamwork and enhance software maintainability.

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    Your profile

    • Proven track record in designing and developing applications using the Spring ecosystem and/or the Java EE platform.
    • Extensive expertise in web technologies, including JavaScript, HTML5, and CSS, and a clear understanding of how these technologies interact, complemented by experience with modern libraries for building user interfaces, with a preference for React.
    • Hands-on experience in requirements analysis, software design, and system architecture.
    • Proficiency in designing, implementing, and utilizing web services (SOAP/REST) for system integrations.

    Your skills

    • Knowledge of programming techniques and languages: including Java (Spring ecosystem), JavaScript, React (or similar), HTML5, SQL, Git, and Maven.
    • Testing, diagnosing and optimization of software: including proactive monitoring, system customization, applying patches, and managing major system upgrades.
    • Re-use, refactoring, integration and porting of existing software: with a focus on defining and managing interfaces, particularly through web services.
    • Conceptualising, designing and developing user experiences and interfaces: based on expressed user requirements and complex workflows.
    Ideal start date: 01/03/2026
    Contract duration: 60
    Grade range: 6
    Benchmark job: 200020 - Computing Engineer
    Job flexibility: Hybrid
    Team supervision

    Employment conditions

    • Participation in a regular stand-by duty, including nights, Sundays and official holidays.

    Global Benefits at CERN

    • A minimum entry-salary of 9113 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 EN department provides essential engineering expertise and infrastructure systems for the design, operation, and maintenance of CERN's accelerator complex and experimental facilities.

    It covers everything from mechanical engineering to infrastructure management, ensuring the smooth running of technical systems.

    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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