Position Summary:

The Lead IA Network Engineer / Systems Administrator provides expert support in managing, securing, and maintaining network infrastructure for USNAVSOUTH/FOURTHFLT. This role involves operating a range of network systems, designing secure architectures, and ensuring compliance with DoD cybersecurity standards. Essential Functions: Provide lead IA network engineering and system administrator services during normal work hours (0730-1600) from designated IA spaces. Operate, secure, maintain, and repair network infrastructure, including switches, routers, firewalls, video teleconference systems, servers, and TACLANE encryptors , anticipating network growth of 5% annually . Design, implement, and maintain secure DoD C4I systems, JWICS, CENTRIXS, and other operational networks as needed. Conduct weekly scans and patches (10-15 per week), ensuring compliance with DoD Information Assurance (IA) and Computer Network Defense (CND) guidelines . Act as the primary network engineer and secondary system administrator for various government communication systems, including DCGS-N, ADSI, GCCS-J, Radiant Mercury (RADMERC), and VTC systems . Create and maintain Standard Operating Procedures (SOPs) for network and system security operations. Perform configuration, diagnostics, and upgrades on 24 switches and routers , analyze traffic patterns, and optimize network performance. Install and maintain software and hardware , ensuring secure versions and configurations of information systems. Design and implement network architectures , coordinate topology changes , and document modifications per DoD guidelines . Maintain accountability of over 150 IT assets assigned to USNAVSOUTH/FOURTHFLT. Advise and assist customers in troubleshooting complex issues while minimizing operational interruptions . Conduct network assessments, vulnerability scans, and compliance audits , ensuring systems meet DoD 8570.01-M IA workforce requirements . Qualifications & Requirements: U.S. Citizenship required ; must possess TS/SCI security clearance . Extensive experience in IA technology , network security, and system administration. Required certifications: NSA/CNSS 1411 - Information Systems Security (INFOSEC) Professional CCNP Routing & Switching CCNA Security & CCNA CompTIA Security+ Certification Cisco ASA 5515-x firewall with IPS experience DCGS-N Block 2 Ashore maintenance training Radiant Mercury (RADMERC) Administrator SPLUNK log correlation & management Cisco VTC operation & configuration Wireshark network sniffing tool VMware virtual servers & workstations MS Visio & ACAS scanning software Compliance with DoD 8570.01-M IA Level II Certification (GSEC, Network+ CE, Security+ CE, SSCP) Additional Responsibilities: Engineer and implement network infrastructure , including secure system installations. Configure firewalls, routers, and switches , ensuring optimal security and functionality. Provide hardware and software maintenance , upgrades, and troubleshooting support. Assist with PC and IT hardware maintenance , system communications, and resource allocations. Perform other related network engineering and system administration duties as assigned.