Systems Administrator - Operations

At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.

Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.

Requisition #:1904

Job Title: Systems Administrator
- Future Operations

Location: Fort Huachuca, AZ, Onsite

Clearance Level: Secret, Must Have Clearance to Start

Required Certification(s): DoW 8140 Compliance – CompTIA Security+ or Cloud+, GICSP, GSEC, Systems Security Certified Practitioner

The Future Operations Virtualization Systems Administrator will support the operation, maintenance, and modernization of infrastructure within a LAB/FUOPs environment. The primary focus of this position is administering VMware virtualization technologies, including VMware ESXi 7 and 8 and vSphere/vCenter 8, running on a Flex Pod infrastructure composed of Net App ONTAP storage, Cisco Unified Computing System hardware, Cisco UCS Manager, and Broadcom/VMware hypervisors.

The successful candidate will possess a strong understanding of virtualization principles beyond a specific vendor or product. Foundational knowledge of containerization and other infrastructure platforms is important so the administrator can support future technology transitions and platform modernization efforts. This position requires hands‑on collaboration across virtualization, compute, storage, networking, Linux, and security disciplines.

• Deploy, configure, administer, and maintain VMware ESXi 7 and 8 hosts, vSphere/vCenter 8, clusters, and virtual machines.
• Manage virtual infrastructure components, including templates, resource pools, data stores, standard and distributed virtual switches, and content libraries.
• Support VMware capabilities such as vMotion, Storage vMotion, High Availability, Distributed Resource Scheduler, host profiles, and role‑based access control.
• Perform system patching, upgrades, certificate maintenance, and lifecycle‑management activities for ESXi hosts, vCenter, and related VMware components.
• Monitor and optimize virtual infrastructure performance, capacity, resource utilization, availability, and stability.
• Troubleshoot complex issues involving virtual machines, hypervisors, virtual networking, storage connectivity, physical servers, and supporting infrastructure.
• Plan and support workload migrations, technology refreshes, and transitions between test, lab, and operational environments.
• Apply platform‑independent virtualization concepts to support the evaluation or adoption of alternate hypervisors, private‑cloud platforms, or container‑based solutions.

• Support Flex Pod infrastructure consisting of Cisco UCS compute, Cisco networking, Net App ONTAP storage, and VMware virtualization technologies.
• Perform foundational-to-intermediate Cisco UCS administration using Cisco UCS Manager.
• Support Cisco UCS components and configurations, including chassis, servers, Fabric Interconnects, service profiles, server pools, vNICs, VLANs, policies, and firmware packages.
• Assist with physical server provisioning, hardware replacement, firmware updates, health monitoring, and fault isolation.
• Perform foundational-to-intermediate administration and troubleshooting of Net App systems running ONTAP.
• Support storage components and concepts such as Storage Virtual Machines, aggregates, volumes, LUNs, NFS data stores,…