Principal Network Engineer III

About Agile Defense

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 #: 1588

Job Title: Principal Network Engineer III

Location: Huntsville, AL, Pocatello, , Clarksburg, WV

Clearance Level: TS/SCI and ability to achieve and maintain a CI Polygraph

Required Certification(s): Cisco CCNA with Cisco CCNP or similar preferred

The Contractor shall be responsible for design, deployment, testing, certification, patching, and addressing interoperability issues for all features, components and application dependencies, to include switches, firewalls, load balancers, software‑defined networking, private cloud requirements, etc.

• Serve as the advanced matter expert for all data center network environments.
• Create and maintain network infrastructure for both bare‑metal and virtual machines with the appropriate LAN, WAN, VLAN, SDN, firewall and load balancer configurations, using both OEM and third‑party tools that include virtual network tools (NSX) and services.
• Provision/configure the required networking for servers and applications.
• Evaluate, improve, and maintain the information security throughout the data center network infrastructure.
• Monitor and correct critical network issues and create recovery processes for failures and performance bottlenecks. Provide realtime alerts for network problem issues and implement proactive solutions for future problems, including redesign or tech refresh.
• Install, configure, test, and maintain system management tools for all data center network components.
• Proactively ensure the highest levels of systems and infrastructure availability.
• Monitor and test application performance for potential bottlenecks, identify possible solutions, and work with developers to implement those fixes.
• Maintain security, backup, and redundancy strategies.
• Write and maintain custom scripts to increase system efficiency and lower the human intervention time on any tasks, such as automated provisioning of addresses and VLANs with Infrastructure as a Service (IaaS).
• Participate in the design of information and operational support systems, provide 4th level support, and liaise with vendors and other IT personnel for problem resolution.
• Ensure technical documentation exists for all systems and is kept up to date to include inventory and patch levels of all systems to include hostnames, property numbers, IP addresses, enclave, number of cores, number of processors, admin passwords, certificates, and service accounts on a monthly interval.
• Provide realtime alerts and dashboard information on network performance and availability.
• Document system configurations to include passwords, access controls, version number, and revision numbers, patch levels, and inventory to include hostnames, TCP/IP addresses, number of processors, number of cores, memory, and license keys.
• Continually transition knowledge to the government staff through training and assistance on how to use the technology using industry best practices.
• Provide realtime reporting of provisioned and non‑provisioned resources such as bandwidth utilization to include performance metrics for availability, performance, and trends.

Clearance Required

Current TS/SCI clearance with the capability of obtaining CI Polygraph to meet contract requirements.

Required Certification

Cisco CCNA with Cisco CCNP or similar preferred

• Minimum six (6) years of experience with designing, implementation, and ongoing support of the network infrastructure within and between data centers.

6 years and more

• Bachelor’s degree preferred
• Cisco ACI experience preferred

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