Full Stack Software Engineer and Service Manager

What you'll do

Are you a skilled full-stack developer who enjoys taking ownership of real-world services? Join CERN’s Platforms & Workflows group in the IT department, where we build and operate the Identity and Access Management systems used daily by thousands of researchers, engineers, and collaborators. You will work in an environment where engineering quality truly matters, and where your code directly enables world-class research.

You will join a supportive team of experienced developers and service managers who value collaboration, continuous learning, and thoughtful engineering. The role offers the opportunity to deepen your full-stack expertise while gaining hands-on experience with modern service operations, security practices, and large-scale digital identity systems.

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Your responsibilities

Design, develop and maintain modern web applications built on a .NET backend and React frontend.
Participate in architectural decisions and contribute to the technical evolution of the IAM platform.
Participate in service operations, including deployments, troubleshooting, monitoring, and continuous improvements.
Support and guide junior team members, sharing best practices and contributing to a positive engineering culture.
Collaborate closely with users and stakeholders: provide advanced user support, gather requirements and enhance the service to meet the evolving needs of the organisation.
Ensure quality and reliability through documentation, testing, and adherence to security standards.

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Your profile

Demonstrated experience in development and maintenance of web applications using modern backend and frontend technologies (e.g. .NET, Java, React, relational databases)
Experience contributing to the architecture and technical design of software systems
Experience operating software services (debugging, deploying, monitoring, upgrading)
Ability to engage with users, understand requirements, and provide high?quality support
Master's degree or equivalent relevant experience in the field of Computer Science or a related field.

Your skills

Knowledge of programming techniques and languages, advanced knowledge of .NET, C# (or Java), relational databases and SQL (Oracle, MySQL or similar), ReactJS.
Administration of computing systems, upgrades, application of security patches, system and data migrations, backup and recovery, monitoring and alerting.
Knowledge and application of software life-cycle tools and procedures, proficiency with Git, CI/CD tools, containerised deployments.
Knowledge of best practices for implementing ICT security standards and policies.
Capturing and analysis of requirements for ICT systems.
Delivers high quality work on time and fulfils expectations.
Works well in groups and readily fits into a team; participates fully and takes an active role in team activities.
Demonstrates a pro-active approach to resolving differences; addresses issues of conflict constructively.
Adapts quickly and resourcefully to shifting priorities and requirements.
Shares knowledge and expertise freely and willingly with others; coaches others to ensure knowledge transfer.
Spoken and written English, with a commitment to learn French.

Ideal start date: 01/08/2026

Contract duration (in months): 60

Grade range: 6

Benchmark job: 200020 - Computing Engineer

Job flexibility: Hybrid

Employment conditions

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

Global Benefits at CERN

A minimum net entry-salary of 9236 Swiss Francs per month, 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. Currently, we cannot consider applications from Pakistani and Lithuanian nationals for positions with a 2026 start date, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
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 IT Department designs, operates, and evolves CERN’s core computing and digital infrastructure. It provides the large-scale data processing, storage, networking, and collaboration services that enable CERN’s scientific programme. The Department supports the LHC and non-LHC experiments, accelerator systems, and the wider CERN community, while advancing new computing technologies through research, development, and strategic partnerships.

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.