Senior OpenShift & Linux Administrator (m/f/n)

The position is for a Partner delivering projects for a European Union institution. It involves working on a long-term international initiative focused on modernizing application platforms and infrastructure, mainly based on Red Hat OpenShift technologies. The main project is a Data Platform designed to centralize data exchange between applications using a Document (JSON) data model.

• Minimum 3 years of experience as a Linux System Administrator, preferably with Red Hat Enterprise Linux (RHEL).
• Minimum 3 years of hands-on experience working directly in an OpenShift environment.
• Expertise in container orchestration platforms such as OpenShift.
• Ability to work independently and provide guidance to junior team members.
• Experience in writing specifications, concept documents, end-user documentation and technical documentation.
• Strong communication skills to interact with stakeholders on technical and user requirements.
• Service-oriented mindset and well-developed interpersonal skills.
• Strong organizational skills and ability to multitask in demanding environments.
• Initiative and ownership of assigned responsibilities.
• Higher education degree (University degree).
• EU citizenship is required.
• Candidates must be based and authorized to work within the European Union.

• Install, manage and maintain OpenShift infrastructure, including Azure Red Hat OpenShift (ARO) and on-premises OpenShift environments.
• Manage multiple OpenShift clusters across virtualized and cloud environments, including installation, configuration and upgrades.
• Monitor and optimize the performance, capacity and availability of OpenShift environments.
• Act as 2nd Line Support for OpenShift, container orchestration, networking, storage, security and other aspects of the OpenShift environment.
• Participate in an on-call rotation providing 24/7 support for critical production systems.
• Produce documentation related to support, administration, maintenance and evolution of ARO and OpenShift infrastructure (SOPs, manuals, guides, release notes, policies, checklists, workflows, presentations, proposals).
• Support OpenShift AppDev activities, including containerizing applications and moving them onto OpenShift.
• Research, prepare and implement changes to ARO and OpenShift environments aimed at increasing task automation, efficiency, confidentiality, integrity, availability, compliance, reliability.

EU citizenship is required. Candidates must be based and authorized to work within the European Union. Onboarding in Warsaw is required despite remote work.