Principal Network Engineer III
Listed on 2026-10-11
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IT/Tech
Systems Engineer, Network Engineer, Cybersecurity
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 #: 1912
Job Title: Principal Network Engineer III
Location: Hybrid, four days per week in Pocatello,
Clearance Level: Top Secret Clearance Required with SCI Eligibility and ability to obtain and maintain a CI Polygraph
Required Certification(s): Cisco CCNA within six months of starting role
About Agile DefenseAt 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 #: 1912
Job Title: Principal Network Engineer III
Location: Hybrid, four days per week in Pocatello,
Clearance Level: Top Secret Clearance Required with SCI Eligibility and ability to obtain and maintain a CI Polygraph
Required Certification(s): Cisco CCNA within six months of starting role
Job DescriptionThe Network Engineer will be responsible for the design, deployment, testing, certification, patching, and troubleshooting of all network features, components, interoperability and application dependencies across data center environments. This includes switches, firewalls, load balancers, software-defined networking, and private cloud infrastructure. This position is onsite in Pocatello, , and requires an active Top Secret clearance at the time of application.
We are seeking an Enterprise-level Network Engineer with six or more years of experience. The successful candidate will have or be able to obtain a CCNA, with strong preference for experience in Cisco ACI, NSO, and other advanced Cisco data center technologies.
Responsibilities- Design, implement, and provide ongoing support for networking infrastructure within and between data centers
- Serve as an advanced subject matter expert for all data center network environments
- Create and maintain network infrastructure for both bare‑metal and virtual machines, including LAN, WAN, VLAN, SDN, firewall, and load balancer configurations using OEM and third‑party tools such as NSX
- Provision and configure required networking for servers, applications, and cloud services
- Evaluate, improve, and maintain information security across the data center network infrastructure
- Monitor, diagnose, and correct network issues; develop recovery processes for failures and performance bottlenecks
- Provide real‑time alerts and implement proactive remediation, including redesigns or technology refreshes
- Install, configure, test, and maintain system management tools for all network components
- Ensure the highest levels of network availability, performance, redundancy, and resilience
- Monitor and test application performance; identify bottlenecks and collaborate with developers on solutions
- Maintain comprehensive security, backup, and redundancy strategies
- Develop and maintain automation scripts to improve operational efficiency, including automated provisioning of addresses and VLANs for IaaS
- Participate in the…
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