Software Engineer (IT-CA-CET-2026-210-LD)

Introduction Are you passionate about building and operating large-scale digital services that connect thousands of users across a worldwide scientific community? As a Computing Engineer in CERN’s IT Department, you will play a key role in delivering and evolving the collaboration and communication services used every day by scientists, engineers and support teams across the Organization. You will help operate critical platforms including email, group management and media services while contributing to the integration of modern cloud and on-premises technologies within CERN’s computing ecosystem. Working within the Collaboration and Engineering Tools team, you will combine software engineering, service operations and infrastructure automation to ensure that essential collaboration services remain secure, scalable and reliable. You’ll have the opportunity to work with technologies ranging from cloud services, web and automation frameworks, data analytics platforms to Kubernetes/OpenShift, Microsoft 365 and Exchange Online. This role offers scope for technical leadership, architectural input and service ownership in a complex international environment. Functions You will contribute to the operation, evolution and integration of CERN's collaboration platforms by: - Acting as deputy service manager for CERN's email services and sharing technical ownership of the reliability and evolution of the messaging ecosystem. - Managing and improving the synchronisation of email identities and attributes across Active Directory, Entra ID and Exchange Online. - Operating and evolving CERN's distribution groups archive service. - Operating and evolving the 365 groups provisioning integration to the CERN Computing Resources Portal. - Ensuring seamless synchronisation of group memberships and associated collaboration services across CERN's computing environment. - Participating in strategic projects related to media platforms, video conferencing services and Indico (CERN event management platform). - Contributing to the operation, troubleshooting and continuous improvement of CERN's communication and collaboration services. - Working closely with infrastructure, security and IT service teams to deliver robust and scalable solutions. - Automating processes and improving service observability, reliability and user experience. 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.