Senior Systems Engineer

Key Responsibilities

• Lead the design and execution of KVM/libvirt hypervisor deployments across US data centers.
• Drive VMware-to-KVM/CloudStack workload migrations end-to-end, including planning, VM conversion, storage migration, and cutover coordination.
• Administer CloudStack zones, clusters, templates, and storage pools; own VM lifecycle operations at scale.
• Independently troubleshoot complex hypervisor, networking, and storage performance issues.
• Own and maintain Ansible playbooks for infrastructure provisioning, configuration management, and patching at scale.
• Build and manage Jenkins CI/CD pipelines for infrastructure-as-code workflows and automated deployments.
• Lead adoption of Git-based IaC practices across the team and guide junior engineers' automation contributions.
• Develop Python and Bash automation to reduce operational toil and improve consistency across environments.
• Administer RHEL/Rocky/Ubuntu Linux and Windows Server environments — provisioning, patching, hardening, and lifecycle management.
• Support Active Directory domain decommission and consolidation, including legacy Windows Server migration activities.
• Enforce OS security baselines aligned to PCI DSS v4.0 and provide evidence for audit cycles.
• Serve as Tier 3 escalation for OS-level incidents across Linux and Windows platforms.
• Manage SAN/NAS environments including LUN provisioning, zoning, multipath I/O, and iSCSI/FC configuration.
• Support Pure Storage FlashArray and VMAX operations, migrations, and performance troubleshooting.
• Integrate block and file storage with KVM/CloudStack primary and secondary storage pools.
• Provide guidance and day-to-day support to junior engineers; assist with onboarding and informal training.
• Liaise with networking, security, and storage teams to coordinate complex cross-domain changes.
• Participate in on-call rotation as a senior escalation resource.
• Document runbooks, architecture decisions, and procedures in Confluence; manage work via ServiceNow and Jira.

Required Qualifications

• 7+ years in enterprise systems engineering or IT infrastructure, with demonstrated scope expansion over time.
• 4+ years of production KVM/libvirt hypervisor management.
• Strong Linux administration — RHEL/Rocky/CentOS or Debian-based at scale.
• Windows Server administration — Active Directory, DNS/DHCP, GPO, and domain lifecycle.
• Jenkins or equivalent CI/CD pipeline experience for infrastructure automation.
• Scripting proficiency in Bash and Python.
• SAN storage administration — LUN management, zoning, multipath I/O, iSCSI or Fibre Channel.
• Demonstrated ability to mentor junior engineers and guide technical work.
• Experience working within PCI DSS or another regulated compliance framework.