Systems Administrator

About the role

We are looking for a Senior Linux Administrator to design, deploy, and manage enterprise‑grade Red Hat Enterprise Linux environments across on‑premises and cloud platforms. The role focuses on high‑availability, performance, and security of Linux and VMware infrastructure supporting mission‑critical workloads.

Key responsibilities

• Design, implement and support RHEL solutions on physical servers and VMware vSphere.
• Manage provisioning, LUN/volume allocation, host mapping, masking and expansion.
• Administer advanced NAS platforms and file services using NFS (v3/v4) and autofs in Kerberos‑enabled environments.
• Monitor system performance and capacity with Prometheus and Grafana.
• Execute BAU changes following ITIL change, incident and service management processes.
• Support disaster‑recovery operations, including automated replication, failover testing and rapid incident response.
• Perform RHEL updates, firmware upgrades and maintenance via Red Hat Satellite.
• Ensure security compliance through OS hardening, SELinux configuration, vulnerability remediation and audit support.
• Maintain technical documentation, runbooks and CMDB records.
• Provide capacity planning, performance forecasting and resource utilization reporting.
• Collaborate with storage, virtualization, backup and cloud teams.
• Lead OS upgrades, server migrations and infrastructure modernization initiatives.
• Participate in on‑call rotation and provide Tier‑3 support for critical incidents.

Required profile

• Strong hands‑on experience managing RHEL workloads within VMware and cloud environments.
• Solid understanding of Linux networking, multipathing, NFS, autofs and SAN/NAS integration.
• Experience building and maintaining configurations with Puppet and Ansible.
• Proficiency in shell scripting and automation of routine tasks.
• Familiarity with backup and disaster‑recovery concepts.
• Operational experience working within ITIL frameworks.

Required skills

• Red Hat Enterprise Linux (RHEL)
• VMware vSphere
• NFS (v3/v4)
• autofs
• Kerberos
• Prometheus
• Grafana
• Red Hat Satellite
• SELinux
• Puppet
• Ansible
• Shell scripting