Senior Network Administrator – Cloud & Security Ops

Chenega Corporation; Arlington (VA); On-site; USD 108,760 - 150,000; Full time

Job summary

Chenega Corporation in Arlington, VA is seeking a Network Administrator to implement, maintain, and monitor the organization’s enterprise network across LAN, WAN, and cloud-connected environments, while enforcing security.

The role includes configuring routing protocols, supporting AWS/Azure/GCP, SD‑WAN, documenting networks, and providing Tier 2/3 support. Travel may be required; DoD alignment with STIGs and background checks apply.

Qualifications

• Bachelor’s degree in computer science, information technology, or related field.
• 3+ years of enterprise network administration experience.
• DoD IAT Level II certification (e.g., Security+ CE).
• TS/SCI with the ability to obtain CI poly.
• Successful pass background and drug screening.

Responsibilities

• Install, configure, maintain, and support enterprise network infrastructure and services.
• Configure and troubleshoot routing protocols (EIGRP, BGP, OSPF) and switching technologies to ensure reliable connectivity.
• Support cloud-connected and hybrid network environments, including AWS, Azure, and GCP integrations.
• Assist with deployment, administration, and troubleshooting of SD‑WAN solutions.
• Implement and maintain DISA STIGs and DoD security requirements for network devices and infrastructure.
• Utilize tools such as SolarWinds and SD‑WAN controllers to monitor network health and optimize performance.
• Maintain network diagrams, configuration records, SOPs, and technical documentation.
• Provide Tier 2 and Tier 3 support for network-related incidents and service requests.
• Work with vendors/support providers to resolve hardware, software, and connectivity issues.

Skills

TCP/IP

VLANs

VPNs

BGP

OSPF

EIGRP

MPLS

Network concepts

Security best practices

Education

Bachelor’s degree in Computer Science / IT

Associate’s degree + 3+ years experience + CCNA

DoD IAT Level II certification

Tools

SolarWinds

Wireshark

Cisco

Palo Alto

Arista

Job description

Chenega Corporation in Arlington, VA is seeking a Network Administrator to implement, maintain, and monitor the organization’s enterprise network across LAN, WAN, and cloud-connected environments, while enforcing security.

The role includes configuring routing protocols, supporting AWS/Azure/GCP, SD‑WAN, documenting networks, and providing Tier 2/3 support. Travel may be required; DoD alignment with STIGs and background checks apply.