OpenStack Cloud Engineer (IT-CD-CLI-2026-180-GRAE)

Job Descriptionbr/br/pAre you passionate about cloud infrastructure and curious about how large-scale services are operated and evolved? Join CERN's IT Cloud team and help run and develop the OpenStack-based cloud infrastructure that underpins most CERN and LHC experiment services. In this role, you will work on the systems and software that provide compute, storage, networking and automation capabilities to thousands of users across the organisation. /ppYou will collaborate closely with experienced engineers, the upstream OpenStack community, and CERN's diverse user communities, gaining hands-on experience operating and evolving one of the world's largest scientific clouds. From service reliability and automation to feature development and large-scale operations, you will help deliver infrastructure that enables cutting-edge research. /ppIf you enjoy solving complex technical challenges, contributing to open-source software, and working with infrastructure at scale, come join us! /ppstrongYour responsibilities /strong /pulliRun and help evolve CERN IT's OpenStack-based cloud infrastructure. /liliContribute to the operation and development of cloud services, including compute, storage, networking and related infrastructure components. /liliDevelop and maintain automation and tooling using Python and configuration management systems. /liliWork closely with other IT teams and user communities to design and integrate new capabilities and services. /liliContribute bug fixes and improvements upstream, leveraging CERN's strong links with the OpenStack open-source community. /liliParticipate in troubleshooting and performance optimisation of large-scale distributed systems. /liliFurther enhance the service's automation to ensure scalability and manageability. /li /ulpstrongYour profile /strong /pulliExperience administering or working with Linux systems in a server or data-centre environment. /liliExperience writing Python scripts or applications for automation or systems tasks. /liliFamiliarity with cloud platforms, virtualisation technologies or distributed systems is a plus. /liliExperience with configuration management tools such as Puppet or Ansible is a plus. /liliExperience with container technologies, CI/CD systems or software-defined networking is a plus. /liliContributions to open-source projects or upstream communities are a plus. /li /ulpuSkills /u /pulliStrong knowledge of the Linux operating system. /liliExperience with git version control. /liliProgramming experience in Python. /liliInterest in cloud infrastructure and large-scale distributed systems. /liliFamiliarity with configuration management systems (e.g. Puppet or Ansible) is a plus. /liliUnderstanding of networking concepts and storage technologies is a plus. /liliAbility to collaborate in a multidisciplinary, international team and communicate clearly. /liliSpoken and written English, with a commitment to learn French. /li /ulpuEligibility criteria: /u /pulliYou are a national of a a CERN Member or Associate Member State /a. /lilistronguBy the application deadline, /u /strong you have a strongmaximum of two years of professional experience since graduation /strong in Computer Science or a related field (or a related field) stronguand /u your highest educational qualification is either a Bachelor's or Master's degree /strong. /liliYou have never had a CERN fellow or graduate contract before. /liliApplicants without University degree are not eligible. /liliApplicants with a PhD are not eligible. /li /ulbrAdditional Informationbr/br/pJob closing date: strong at 23:59 CEST. /strong /ppContract duration: 24 months, with a possible extension up to 36 months maximum. /ppWorking hours: 40 hours per week /ppJob flexibility: Hybrid /ppTarget start date: 01-November-2026 /ppJob reference: IT-CD-CLI- -GRAE /ppField of work: Software Engineering and IT /ppBenchmark job: - Computing Engineer /p pstrongGlobal Benefits /strong /pulliA monthly stipend between Swiss Francs per month (tax free) depending on your degree. /lili30 days of paid leave per year plus 2 weeks annual closure. /liliCoverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund. /liliFamily, child and infant monthly allowances depending on your individual circumstances. /liliA relocation package (installation grant and travel expenses) depending on your individual circumstances. /liliPossibility to extend your contract up to 36 months. /liliOn-the-job and formal training including language classes. /li /ulpstrongOverview of CERN - Discover a world where the impossible is made possible! /strong /ppAt 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. /ppEvery 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. /ppIf 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! strongTAKE PART! /strong /ppstrongMore information about us, here: /stronga strongcareers.cern /strong /a /p