Senior Network Administrator

Job Description

Overview: \n

GovCIO is currently hiring a highly experienced Senior Network Administrator to serve as the technical authority for secure network infrastructure supporting a mission-critical U.S. Coast Guard (USCG) program. This position is located in Alexandria, VA and will be a hybrid position. This position focuses on administering, maintaining, and hardening high-security systems to ensure USCG operational readiness and continuous compliance with federal standards.

Responsibilities: \n

The Senior Network Administrator will handle the technical administration and security enforcement of classified systems. Core responsibilities include:

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• Administer and maintain NIPRNet and SIPRNet network infrastructure, including routers, switches, firewalls, TACLANEs, and ensuring compliance with DoD and DISA security standards.

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• Implement and enforce security configurations and hardening across network devices, network support servers, and endpoints in accordance with STIGs and RMF requirements.

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• Review vulnerability scans (e.g., ACAS, SCAP), analyze findings and remediate security issues to maintain system accreditation.

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• Develop and maintain detailed network documentation, including architecture diagrams, configuration baselines, and change control records.

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• Support RMF lifecycle activities by preparing and updating accreditation artifacts such as System Security Plans, POA&Ms, and eMASS entries.

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• Monitor system performance and security alerts; troubleshoot connectivity, authentication, and configuration issues within classified environments.

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• Collaborate with cybersecurity teams, system engineers, and program leadership to align network resources with mission requirements.

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• Participate in technical reviews and change control boards; provide expert recommendations on design modifications and security posture improvements.

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• Stay current with emerging technologies, DoD cybersecurity mandates, and best practices for classified network operations.

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Qualifications: \n

High School with 9+ years (or commensurate experience)

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Required Skills & Experience

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• Certifications: Current DoD 8570 IAT Level II certification (e.g., CompTIA Security+ CE, CySA+, CCNA Security, GSEC).

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• Bachelor's degree (or commensurate experience) and 8 years of experience.

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• Expert-level experience with Cisco routers (39xx, 4xxxx, 8K), switches (29xx, 38xx, 9K), and firewalls (55xx and above).

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• Minimum 3 years of hands-on experience with TACLANEs (KG-175D/F/N/G) and GEM management console at a configuration and engineering build level.

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• Strong knowledge of DoD STIGs, RMF processes, and DISA security standards.

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• Proven ability to lead network hardening, vulnerability remediation, and accreditation efforts.

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Clearance Level: Must have an active Secret clearance

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Preferred Skills & Experience

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• US Coast Guard experience highly preferred.

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• Experience with Cisco ISE, DoD Zero Trust implementation, and Infoblox DNS.

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• Expertise in designing robust, redundant, and failover TACLANE networks.

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• Experience working directly with senior government leadership or military officials.

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• Strong interpersonal, problem-solving, and time management skills.

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Posted Salary Range: USD $95,000.00 - USD $115,000.00 /Yr.