Openshift Admin

What will you do?

• Administer, maintain and evolve Red Hat OpenShift Container Platform 4.x clusters across development, staging, production and disaster recovery environments.
• Manage the full cluster lifecycle, including installation, upgrades, patch management and security hardening.
• Configure and manage Kubernetes/OpenShift networking, including OVN-Kubernetes, NetworkPolicies, Ingress Controllers, TLS certificates and Service Mesh.
• Manage storage solutions, including SAN/NAS integration, OpenShift Data Foundation (Ceph), CSI Drivers, Persistent Volumes and backup strategies.
• Implement and manage identity, access and security, including LDAP/Active Directory integration, OAuth, RBAC, Security Context Constraints (SCCs) and security policies.
• Govern multi-tenant environments by managing namespaces, resource quotas, limit ranges and onboarding new application teams.
• Administer Operators, monitoring, logging and observability tools, including Prometheus, Alertmanager, Loki/EFK, Grafana and Datadog.
• Plan and execute disaster recovery strategies, including etcd backup and restore, cluster failover and replication.
• Automate platform operations using Ansible and GitOps tools such as ArgoCD/OpenShift GitOps.
• Provide technical guidance and support to application teams, contribute to technical documentation, runbooks and participate in the platform on-call rotation.

What are we looking for?

• Proven experience administering Red Hat OpenShift Container Platform 4.x in production environments.
• Hands-on experience installing and upgrading OpenShift clusters (UPI/IPI) on bare-metal or VMware infrastructure.
• Strong Linux administration skills (RHEL), including networking, system administration and troubleshooting.
• Solid understanding of Kubernetes and OpenShift, including Routes, SCCs, BuildConfigs, ImageStreams and Operators.
• Experience managing OpenShift networking, storage, RBAC and security in enterprise environments.
• Proficiency with the oc CLI, kubectl and YAML configuration at an administrator level.
• Experience with monitoring and logging solutions such as Prometheus, Alertmanager, Loki or EFK.
• Knowledge of automation using Ansible and GitOps practices with ArgoCD/OpenShift GitOps.
• Strong problem-solving, documentation and communication skills.
• Professional working proficiency in English, both written and spoken.

2x week at the office- Porto