IT Security Administrator

Network Administrator

Location: On-site in Tampa, FL

Start: ASAP

Overview:

We are seeking a skilled Network Administrator to join the Infrastructure Network team. This role will ensure secure, reliable, and high-availability network communications across data centers and remote sites, supporting 24/7/365 operations. The ideal candidate will have strong Cisco networking expertise, hands-on troubleshooting experience, and the ability to design, secure, and optimize enterprise-scale networks.

Key Responsibilities:

• Ensure daily operation and high availability of Wide Area Networks (WANs) spanning multiple data centers and remote sites

• Configure, maintain, and troubleshoot Cisco LAN, WAN, and wireless technologies (Cisco WLC, Catalyst IOS, Nexus Series, etc.)

• Design network systems (LAN, WAN, Intranet, Internet) that meet business and security requirements

• Support network hardware through updates, testing, and lifecycle refreshes

• Collaborate with cross-functional teams to troubleshoot server, client, and application connectivity or performance issues

• Implement, monitor, and optimize traffic flow using network management tools

• Secure network systems by enforcing policies and monitoring access

• Maintain and update configuration documentation and monitoring systems

• Analyze requirements to develop technology roadmaps and frameworks

• Perform modeling, planning, and budgeting for network infrastructure

• Plan and execute network installations, migrations, and test plans

• Identify and upgrade existing network components to achieve optimization

• Audit infrastructure for compliance with internal standards and policies

• Provide mentorship to junior team members

• Participate in an on-call rotation and respond to emergencies as required

Required Skills & Experience:

• 5 7+ years of experience in enterprise-scale network administration (Cisco Routing, Switching, VPN, ISE, WLAN, Firewall)

• Hands-on expertise in troubleshooting and maintaining WAN/LAN and wireless environments

• Strong knowledge of OSI layers, Wi-Fi, IPSec, EIGRP, DNS/DHCP, and firewall security

• Proficiency with SNMP, monitoring, and network management tools (WireShark, NetScout, NPM, etc.)

• Strong documentation, planning, and project execution skills

• Excellent communication skills and ability to lead root cause analysis

Preferred Qualifications:

• Cisco Certified Network Professional (CCNP) or equivalent certification

• 10+ years of network administration/architecture in enterprise environments

• Experience with disaster recovery planning and implementation

• Knowledge of DDOS attacks, mitigation techniques, and best practices

• Familiarity with Linux and/or Windows operating systems

• Experience with virtualization platforms (e.g., VMware vSphere)

Work Conditions & Requirements:

• On-site role with standard business hours and potential for non-standard schedules (nights, weekends, holidays)

• Must be able to respond promptly during emergencies or critical events

• Physical requirements: ability to sit/stand at workstations for extended periods and lift up to 10 lbs

• Must successfully pass background investigation, drug screening, and security vetting

• Must reside within Florida or be willing to relocate

• Valid Driver's License may be required depending on assignment