System Administrator

Systems Administrator (Windows/Linux | Virtualization-Heavy)
Position Summary

We are seeking a hands-on Systems Administrator with deep experience supporting Windows and Linux server environments
, with a strong emphasis on virtualization platforms and infrastructure lifecycle management. This role will support the full infrastructure lifecycle—from requirements and architecture through deployment, patching, monitoring, incident response, and decommissioning—within a production environment that prioritizes uptime, performance, and operational discipline.

The ideal candidate is highly skilled in VMware and/or Hyper-V, has strong fundamentals across Active Directory, DNS/DHCP, Group Policy, storage/backup, and server hardening
, and brings a structured approach aligned with best practices such as ITIL, change management, and disaster recovery planning
. This is a great opportunity for someone who enjoys being the technical backbone of a server/virtualization estate while partnering across IT and business stakeholders.

• Administer and support enterprise Windows Server (2016/2019/2022) and Linux environments (RHEL/CentOS/Ubuntu/Oracle Linux where applicable)
• Own and maintain a virtualization ecosystem with heavy emphasis on:
• VMware vSphere / ESXi / vCenter and/or Microsoft Hyper-V
• cluster management, HA, resource optimization, performance tuning, and capacity planning
• lifecycle support for hosts, VM templates, snapshots, patch cycles, and upgrade paths
• Support Active Directory infrastructure:
• AD domains/forests
  , trusts, sites/services, replication health, and UPN/DNS strategy
• Group Policy design
  , baseline security hardening, and safe deployment practices
• Troubleshoot and resolve complex issues involving:
• authentication failures ("no logon servers" issues), GPO non-application, DNS misconfigurations, replication latency
• high-latency WAN impacts and site connectivity considerations
• Support backup/recovery operations and disaster recovery readiness:
• restore testing, DR runbooks, immutable/offline backups (as applicable)
• incident response support during outages or cybersecurity events
• Monitor systems health using enterprise monitoring tools (alerts, logs, proactive remediation)
• Maintain high-quality documentation: runbooks, system diagrams, SOPs, and change records
• Participate in infrastructure roadmap planning, hardware refreshes, and platform modernization initiatives

• 4+ years of Systems Administration experience across Windows + Linux
• Strong, hands-on virtualization experience (must-have):
• VMware vSphere stack and/or Hyper-V with clustering
• experience supporting production environments with uptime and performance requirements
• Strong experience with:
• Active Directory
  , DNS, DHCP, Group Policy
• server patching, security hardening, access controls, and operational maintenance
• Proven troubleshooting ability using a structured, methodical approach (command-line, logs, diagnostics tools, root cause analysis)
• Understanding of enterprise IT operations concepts:
• change control, lifecycle management, capacity planning, monitoring strategy

• Experience with:
• storage (SAN/NAS), shared data stores, iSCSI/FC concepts
• scripting/automation (Power Shell, Bash, Python)
• Exposure to:
• cloud networking concepts (Azure/AWS hybrid connectivity)
• endpoint management (Intune/Autopilot)
• Experience participating in incident response scenarios or DR failover events