Linux Engineer (KVM)

We are looking for a skilled Linux Virtualization & HA Engineer to join our infrastructure team (design and maintain a fault-tolerant KVM cluster using Pacemaker and other open-source tools).

Key Responsibilities

• Design, implement, and manage KVM-based virtualization on enterprise Linux platforms (RHEL/SUSE/Debian-based).
• Deploy and configure Pacemaker and Corosync for HA cluster management.
• Integrate shared storage, or for replicated VM storage.
• Implement fencing/STONITH mechanisms to protect data integrity in failover scenarios.
• Create and manage libvirt XML definitions and manage VMs via virsh and related tooling.
• Configure pacemaker remote or equivalent to integrate guest VMs into HA clusters.
• Develop and maintain cluster resource definitions, constraints, and failover policies.
• Perform routine patching, upgrades, and cluster health checks.
• Monitor and troubleshoot performance, network, and storage issues.
• Implement backup and disaster recovery strategies for virtualized workloads.
• Create detailed technical documentation and train internal teams on HA KVM environments.
• Collaborate with DevOps, Networking, and Storage teams for infrastructure integration.

Required Skills & Qualifications

• 5+ years experience with Linux system administration (RHEL, CentOS, SUSE, Debian, or similar).
• Experience with SUSE Linux Enterprise High Availability Extension (SLE-HA) or RHEL HA Add-on.
• Strong expertise in KVM/QEMU and libvirt.
• Hands-on experience with Pacemaker/Corosync HA clusters.
• Knowledge of DRBD, Ceph, or other shared storage technologies for VM replication.
• Proficiency in networking concepts (bridging, VLANs, bonding, static routing, multicast for Corosync).
• Experience with STONITH/fencing devices (IPMI, iLO, DRAC, etc.).
• Scripting skills in Bash, and familiarity with Python or Ansible for automation.
• Solid understanding of disaster recovery planning and HA design patterns.
• Strong troubleshooting skills in large-scale Linux environments.
• Familiarity with Proxmox VE, oVirt, or OpenStack.
• Knowledge of Kubernetes/ KubeVirt for containerized virtualization.
• Experience with monitoring tools (Zabbix, Prometheus, Grafana).
• RHCSA/RHCE, SCA, or similar certifications.