Physical Security Network Engineer

The Network Engineer is responsible for the operation, maintenance (O&M), lifecycle management, and security of the ESS/LENEL network infrastructure supporting USSOUTHCOM Security Enterprise Services (ESS). This role provides Tier 3 technical support and serves as a subject matter expert for complex network, systems, storage, virtualization, and cybersecurity issues across classified and enterprise environments.

The Network Engineer will design, implement, monitor, troubleshoot, and maintain mission-critical network infrastructure and associated technologies while ensuring compliance with Department of Defense (DoD), USSOUTHCOM, and cybersecurity regulations., * Manage, maintain, troubleshoot, and secure ESS/LENEL network infrastructure, including network devices, DNS, Active Directory, virtualization, storage, backups, and end-user systems.

• Provide Tier 3 technical support for complex network and systems issues, including root cause analysis, solution development, testing, and implementation.
• Monitor network performance, security events, and system health using FCAPS and SIEM tools to proactively identify and resolve issues.
• Support cybersecurity operations, access control, log management, incident response, and compliance with USSOUTHCOM and DoD regulations.
• Participate in after-hours, weekend, and holiday on-call support for critical system failures and operational continuity.

Do you have experience in Communication skills?, * Current CompTIA Security+ (Security+) certification or equivalent.

• Current Cisco Certified Network Associate (CCNA) certification or equivalent.
• Experience supporting enterprise network infrastructure, cybersecurity operations, and Tier 3 troubleshooting in secure environments.
• Strong knowledge of TCP/IP networking, DNS/DHCP, Active Directory, virtualization, storage systems, SIEM tools, and network security technologies.
• Excellent analytical, troubleshooting, communication, and documentation skills.
• Experience with troubleshooting complex network and systems issues.
• Knowledge of cybersecurity principles, incident response, and compliance standards.
• Ability to document technical procedures and solutions clearly.