Systems Administrator III

Position Title:
Systems Administrator III

Location:
Durham, NC

Salary: $ - $

** Position contingent upon award of contract, government acceptance of candidate, and positive adjudication of government investigation**

Command Cyber Solutions is seeking a Systems Administrator III to support our proposal effort for the Environmental Protection Agency (EPA) Building Systems Management Division. This position serves as the Service Area Lead for Server Administration and Facility Controls Systems, supporting the reliability, security, performance, and recovery of server infrastructure and designated facility controls platforms.
The Systems Administrator III provides hands‑on administration of VxRail/VMware ESXi environments, guest operating systems, and associated applications. The role also coordinates technical activities across service areas, enterprise providers, vendors, and Facilities personnel while maintaining effective change control, documentation, coverage, and cross‑training.

• Server Administration and Infrastructure Support
• Administer server platforms, including VxRail infrastructure, VMware ESXi hypervisors, and guest operating systems.
• Install software releases, system upgrades, patches, firmware, and drivers during approved maintenance windows; troubleshoot and resolve software and configuration issues.
• Verify server and service health each federal business day, including operating system and application logs, scheduled tasks, endpoint protection/endpoint detection and response (EDR) agent health, signature currency, time synchronization, and domain connectivity.
• Monitor CPU, memory, storage, input/output operations per second (IOPS), latency, cluster health, datastore capacity, virtual machine snapshots, and tools/agent status; address performance issues and capacity thresholds; and safely remove transient files to maintain adequate free space on system and data volumes.
• Review patch compliance, pending restarts, certificate and keystore expiration dates (initiating renewals with system owners), privileged accounts, service accounts, scripts, and alert thresholds.
• Maintain configuration baselines, server images, inventories, software and patch versions, license records, support agreements, and approved configuration deviations.
• Maintain data files and monitor system configurations to ensure data integrity.
• Coordinate end‑of‑life and end‑of‑support planning, including proposed decommissioning schedules and data disposition procedures.
• Coordinate server‑room power and UPS requirements with the designated telecommunications support team.

• Backup Recovery and Continuity
• Execute automated nightly incremental backups and weekly full backups to designated disaster recovery storage.
• Validate backup and replication results, investigate failures, and implement corrective actions.
• Maintain documented backup and restoration procedures and perform server test restores at least quarterly.
• Document recovery test results, restoration evidence, and corrective actions.

• Facility Controls Systems Support
• Administer, monitor, and maintain supported on‑premises or logically isolated facility controls systems (FCS), associated applications, services, and designated edge devices.
• Apply vendor‑approved patches and firmware, maintain supported configurations, enforce least‑privilege access and segmented network addressing, and verify system operability following maintenance.
• Monitor FCS application and system logs and validate time synchronization.
• Perform quarterly backups of supported FCS servers and workstations, validate at least one restore per asset each quarter, and retain the three most recent backups on designated storage.
• Maintain current inventories, diagrams, wiring and…