Senior OpenShift Engineer

Hirexa Solutions; Województwo pomorskie; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

Hirexa Solutions is seeking an experienced OpenShift Administrator to manage and support Red Hat OpenShift and related Kubernetes workloads. The role involves ensuring cluster health, performing upgrades, and maintaining security configurations.

The position requires hands-on expertise with OpenShift, Linux/RHCOS, and monitoring tools, with collaboration across security, network, and storage teams. Hybrid work arrangements are offered.

Qualifications

• 5+ years of hands-on experience with OpenShift Administration and Support.
• Strong knowledge of Kubernetes, container technologies, and OpenShift architecture.
• Experience with OpenShift upgrades, patching, certificate management, and cluster maintenance.
• Experience with OpenShift on VMware environments.

Responsibilities

• Administer and support OpenShift Container Platform (OCP).
• Monitor cluster health, performance, capacity, and availability.
• Troubleshoot Kubernetes, containers, networking, storage, authentication, and deployments.
• Perform cluster upgrades, patching, cert renewals, and lifecycle management.
• Manage OpenShift security including RBAC, SCCs, quotas, and namespace governance.
• Support backup, recovery, disaster recovery testing, and platform resilience.
• Maintain OpenShift networking components (Routes, Ingress, DNS, Load Balancers).
• Perform RCA and implement preventive solutions.
• Develop automation scripts and maintain operational docs.
• Collaborate with Security, Network, Storage, VMware, Cloud, and App teams.
• Participate in incident management and on-call rotations.

Skills

OpenShift administration

Kubernetes

Linux administration

Automation scripting

Incident management

Tools

oc

kubectl

YAML

Operators

RBAC

SCC

Projects

Namespaces

Prometheus

Grafana

Velero

OADP

Dell PPDM

RHCOS

Job description

Cooperation model: Hybrid (3 days onsite, 2 days remote) + on-call rotations

Key Responsibilities

• Administer and support Red Hat OpenShift Container Platform (OCP).
• Monitor cluster health, performance, capacity, and availability.
• Troubleshoot issues related to Kubernetes, containers, networking, storage, authentication, and application deployments.
• Perform cluster upgrades, patching, certificate renewals, and lifecycle management.
• Manage OpenShift security, including RBAC, SCCs, quotas, and namespace governance.
• Support backup, recovery, disaster recovery testing, and platform resilience initiatives.
• Maintain and optimize OpenShift networking components, including Routes, Ingress, DNS, and Load Balancers.
• Perform root cause analysis (RCA) and implement preventive solutions.
• Develop automation scripts and maintain operational documentation.
• Collaborate with Security, Network, Storage, VMware, Cloud, and Application teams.
• Participate in incident management and on-call support rotations.

Required Skills & Experience

• 5+ years of hands-on experience with Red Hat OpenShift Administration and Support.
• Strong knowledge of Kubernetes, container technologies, and OpenShift architecture.
• Experience with oc, kubectl, YAML, Operators, RBAC, SCC, Projects, and Namespaces.
• Strong Linux/RHCOS administration skills.
• Experience with OpenShift upgrades, patching, certificate management, and cluster maintenance.
• Good understanding of OpenShift networking, DNS, Ingress Controllers, and Load Balancers.
• Experience with storage technologies (PVs, PVCs, CSI Drivers, NFS, iSCSI).
• Experience supporting OpenShift on VMware environments.
• Knowledge of backup and recovery tools such as Velero, OADP, or Dell PPDM.
• Hands-on experience with monitoring tools such as Prometheus, Alertmanager, and Grafana.
• Scripting and automation experience (Bash/Shell).
• Understanding of CI/CD pipelines and ITSM processes