Senior Enterprise Network Administrator – Security & ICAM

conceptplus; United States; On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Paid time off

11 paid holidays

Bonuses

Tuition reimbursement

Unlimited training

Job summary

Concept Plus is looking for a Network Administrator to support enterprise network operations, security, and infrastructure sustainment. You will work in an integrated IT environment with routing, switching, wireless, and network security responsibilities.

The role requires strong expertise in enterprise networking, cloud familiarity, and ICAM solutions, with On-call support and Tier III escalation duties to ensure uptime and reliability for federal clients.

Qualifications

• US Citizen
• Bachelor’s degree or equivalent experience
• 5–8 years of network administration experience
• DoD IAT Level I (Security+) or higher
• Strong expertise in enterprise networking and security
• Familiarity with cloud networking and ICAM solutions
• Experience with ticketing systems such as ServiceNow

Responsibilities

• Manage and maintain enterprise network infrastructure (routing, switching, wireless, firewall integration).
• Perform network configuration, deployment, administration, and lifecycle sustainment.
• Administer LAN/WAN connectivity, including VLANs, routing protocols, and segmentation.
• Configure and maintain network access controls (ACLs, VPNs, TACACS, RADIUS, 802.1x).
• Monitor network performance, capacity, and availability; troubleshoot and resolve issues.
• Maintain network monitoring, logging, and alerting systems.
• Implement and sustain network security controls in accordance with STIGs, NIST, and Zero Trust requirements.
• Support ICAM integration (Okta, Azure AD) to enforce authentication and access policies.
• Provide Tier III escalation support for network incidents and outages.
• Maintain configuration baselines, documentation, SOPs, and network diagrams.
• Support network engineering, upgrades, and infrastructure deployments.
• Participate in on-call support to ensure availability and continuity of operations.

Skills

Network administration

Security

Cloud networking

ICAM solutions

ServiceNow

Education

Bachelor’s degree or equivalent experience

Security+ or DoD IAT Level I or higher

Tools

Okta

Azure AD

Job description

Concept Plus is looking for a Network Administrator to support enterprise network operations, security, and infrastructure sustainment. You will work in an integrated IT environment with routing, switching, wireless, and network security responsibilities.

The role requires strong expertise in enterprise networking, cloud familiarity, and ICAM solutions, with On-call support and Tier III escalation duties to ensure uptime and reliability for federal clients.