Senior Software Engineer - Identity and Access Management (IT-PW-IAM-2025-279-LD)

• Manage the Identity and Access Management Service as a Full Stack Developer.
• Design and develop custom software for user identity management.
• Mentor team members and engage with users for service improvements., Are you ready to be at the heart of the daily digital experience of thousands of researchers and engineers, as CERN's Identity and Access Management Service Manager?

You will join the Platforms & Workflows group in the IT Department , where ~30 experienced engineers are responsible for providing a wide spectrum of centrally managed services, such as identity and access management, platforms for developers and researchers, as well as solutions for content authoring and websites hosting.

CERN's Identity and Access Management Service underpins the digital lifecycle ecosystem for all CERN employees and collaborators. It is a custom-built .NET platform that provisions and manages user identities, accounts, authorisation groups, eligibility for certain services, and software integrations with CERN's Single Sign-On.

It also ensures that digital assets (e.g. websites, databases, storage, and other technical resources) created during a person's time at CERN are handled correctly as they change roles or leave the organisation. This is a mission-critical system for CERN where your skills as a Full Stack Developer will directly contribute to a smooth online experience.

Functions:

• Design and develop software for the Identity and Access Management Service; this involves architectural decisions, (mostly) backend and (some) frontend development, APIs, system integrations, migrations between solutions/platforms.
• Mentor junior team members and supervise their technical tasks.
• Manage service operations: configuration, testing, deployment, troubleshooting, bug fixing.
• Engage with the user community to gather requirements and enhance the service to meet the evolving needs of the organisation.
• Provide advanced support, documentation, training etc. to the user community.

• Master's degree or relevant experience in Computer Science or related field.
• Proficiency in .NET, C#, SQL, and relational databases.
• Experience with system architecture and user support., Master's degree or equivalent relevant experience in the field of Computer Science or a related field., * Extensive experience with object-oriented programming and relational databases, preferably .NET and C#, SQL and MySQL/Oracle.
• Demonstrated experience in systems architecture, integrations and migrations.
• Experience in advanced user support and stakeholder management.
• Demonstrated experience with the following is a strong advantage: reactJS, Oracle, Microsoft Identity Manager (MIM), Gitlab CI, Openshift.
• Demonstrated experience developing in both windows and linux environments would be an additional asset.

Technical competencies:

• Knowledge of programming techniques and languages: .NET, C#, ReactJS, SQL, MySQL/Oracle.
• Administration of computing systems: upgrades, application of security patches, system and data migrations, backup and recovery.
• 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.

Behavioural competencies:

• Leading with Strength and Credibility: making timely decisions that balance systematic analysis with decisiveness; dealing with difficulties in a timely manner.
• Managing Self: taking initiative beyond regular tasks and making things happen.
• Communicating Effectively: demonstrating a pro-active approach to resolving differences; addressing issues of conflict constructively.
• Solving Problems: adopting a pragmatic approach; understanding the value of adopting generic rather than 'gold -plated' technical solutions.
• Working in Teams: working well in groups and readily fitting into a team; participating fully and taking an active role in team activities.

Language skills:

Spoken and written English, with a commitment to learn French.

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week

Job Flexibility: Hybrid

This position involves:

• Work during nights, Sundays and official holidays, when required by the needs of the Organization.
• Stand-by duty, when required by the needs of the Organization., * A competitive salary (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.

At CERN , the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature., 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!