Linux System Administrator – Red Hat OpenShift

About the role

We are looking for a System Administrator (Linux) to join a team responsible for the administration, evolution, and operation of Red Hat OpenShift platforms in Lisbon. The role focuses on ensuring availability, security, scalability and efficiency of critical application platforms while driving automation and supporting DevOps practices.

Key responsibilities

• Administer, configure and maintain Red Hat OpenShift clusters.
• Ensure availability, security, scalability and performance of containerised environments.
• Install, configure, monitor and upgrade OpenShift platforms.
• Manage compute, network and storage resources across the platform.
• Support development teams in adopting DevOps, CI/CD and cloud‑native best practices.
• Participate in incident management, troubleshooting and root‑cause analysis.
• Automate platform management using CI/CD pipelines, GitOps and Infrastructure as Code tools.
• Implement and enhance monitoring, observability and operational processes.

Required profile

• Proven experience in Linux system administration.
• Strong experience managing Kubernetes environments, specifically Red Hat OpenShift.
• Hands‑on experience with automation and scripting, preferably Python.
• Familiarity with CI/CD tools and GitOps methodologies.
• Experience with Infrastructure as Code (IaC) approaches.
• Ability to monitor and optimise production platforms and resolve incidents efficiently.

Required skills

• Linux
• Kubernetes
• Red Hat OpenShift
• Python
• CI/CD
• GitOps
• Infrastructure as Code (IaC)
• Prometheus
• Grafana
• Redis
• RabbitMQ