SME Network Administrator

Govcio LLC•Alexandria, VA

2d•Hybrid

About The Position

GovCIO is hiring a highly experienced SME Network Administrator to serve as the technical authority for secure core services and application delivery infrastructure supporting a mission-critical U.S. Coast Guard program. The position is located in Alexandria, Virginia, and is hybrid. The role specializes in administration, deployment, operation, maintenance, and hardening of enterprise Infoblox DNS, DNSSEC, DHCP, and IP Address Management (IPAM) infrastructures. It also serves as the subject matter expert for F5 BIG-IP LTM, GTM, and APM platforms, supporting operational readiness and continuous compliance with Department of War (DoW) STIGs, SRGs, DISA standards, and federal security requirements.

Requirements

High school education with 10 or more years of experience, or commensurate experience.
DoD 8570 IAT Level II certification or higher, such as Security+ CE or CySA+.
At least 5 years of experience in enterprise core services and application delivery operations, including troubleshooting and performance management.
At least 3 years of hands-on experience engineering, deploying, and administering Infoblox Grids using Infoblox Grid Manager, including DNS, DNSSEC, DHCP, IPAM, Grid member management, high availability, and Grid communication.
At least 3 years of hands-on experience administering F5 BIG-IP LTM, GTM/BIG-IP DNS, and APM in enterprise or classified environments.
Demonstrated knowledge and practical application of DoW STIGs, SRGs, DISA STIGs, and RMF processes for Infoblox DDI and F5 BIG-IP platforms.
Strong experience deploying, managing, and hardening Infoblox Grid in DoD environments.
Must have an active Secret clearance.

Nice To Haves

Experience supporting USCG or DHS programs and understanding of Coast Guard culture and IT operational environments.
Certified Infoblox Core Administrator (CICA) or Certified Infoblox Core Engineer (CICE) certification.
F5 Certified BIG-IP Administrator (F5-CA) or equivalent certification covering LTM, GTM/DNS, and APM.
Experience with Cisco ISE, DoD Zero Trust implementation, and Web Application Firewalls.
Experience working directly with government leadership or senior military/Coast Guard officials.
Strong interpersonal, problem-solving, and time-management skills.
Familiarity with eMASS, ACAS, SCAP/STIG Viewer, and RMF artifact development for DDI and application-delivery systems.

Responsibilities

Serve as the primary technical authority and SME for enterprise core DDI services, using Infoblox Grid Manager to engineer, deploy, and operate Infoblox Grids, DNS zones, DNSSEC, DHCP scopes, and automated IPAM.
Implement and manage DNSSEC protocols using Infoblox tools, including key management, automated rollovers, trust anchors, Grid-wide policy consistency, and defenses against DNS spoofing and cache poisoning.
Design, deploy, and maintain Infoblox Grid architecture, including member changes, Grid Master and Grid Master Candidate configuration, high-availability pairs, Grid communication and synchronization, and disaster recovery.
Configure, administer, and support F5 BIG-IP LTM for local load balancing and SSL/TLS offload; GTM/BIG-IP DNS for global server load balancing and intelligent DNS; and APM for access policies, authentication, and secure access in unclassified and classified environments.
Administer and maintain secure Infoblox DDI Grid members and F5 BIG-IP appliances in compliance with DoD, DISA, and Department of War security standards.
Implement and enforce security configurations and hardening across Infoblox Grid members, F5 devices, and DDI servers in accordance with DoW STIGs, SRGs, DISA STIGs, and RMF requirements.
Review vulnerability scans using tools such as ACAS and SCAP/STIG Viewer, analyze findings, and remediate security issues to maintain Coast Guard system accreditation.
Develop and maintain documentation, including Infoblox Grid topology and IPAM allocation records, DNS zone delegation maps, F5 virtual-server/iRule/APM policy documentation, and STIG/SRG compliance checklists.
Monitor Infoblox Grid health, F5 BIG-IP statistics, and DDI service availability; troubleshoot DNS resolution bottlenecks, IP assignment conflicts, load-balancing issues, and authentication errors in classified environments.
Support RMF activities by preparing, reviewing, and updating accreditation artifacts such as SSPs, POA&Ms, and eMASS entries, with emphasis on Infoblox, F5, and related STIG/SRG compliance.
Collaborate with cybersecurity teams, systems engineers, and program leadership to align Infoblox Grid services and F5 traffic-management capabilities with evolving USCG mission requirements.
Participate in technical reviews and change control boards, providing SME recommendations on Infoblox Grid design, F5 configurations, DNSSEC changes, and security posture improvements to government leadership.