Senior Network Administrator III — Security & WAN Lead

System One; Winter Park (FL); On-site; USD 85,000 - 105,000; Full time

Benefits offered by this job

Health benefits

401(k) plan

Dental and Vision insurance

Job summary

System One seeks a Network Administrator III for a full-time, on-site role in Winter Park, FL. You will lead network projects, propose solutions to strategy and security issues, and deliver engineering options for the organization.

Responsibilities include designing topologies, supporting devices, monitoring performance, and coordinating with suppliers. The role requires 7+ years of experience or an equivalent degree path, with strong Windows/Linux skills and VMware ESXi familiarity.

Qualifications

• Undergraduate degree or 7+ years of relevant experience in network administration.
• Experience with cybersecurity product support and network performance tuning.
• Familiarity with LAN design and Cisco routing/switching.
• Proficient with network monitoring tools and security best practices.

Responsibilities

• Lead and manage network projects and security strategy.
• Develop network specifications and support new project scope.
• Maximize network equipment functionality (routers, switches, load balancers, firewalls).
• Perform risk assessments and recommend security improvements.
• Interact with vendors and contractors for network products and services.
• Conduct LAN/WAN analysis, capacity planning, and testing.

Skills

Network administration

Cisco routing & switching

Cybersecurity awareness

Network monitoring tools

Windows & Linux knowledge

VMware ESXi

Excel & Word

Education

Undergraduate degree in a related field

7+ years of experience in network administration

Tools

SolarWinds

ManageEngine

Zabbix

Meraki

Sophos Cloud Management

Job description

System One seeks a Network Administrator III for a full-time, on-site role in Winter Park, FL. You will lead network projects, propose solutions to strategy and security issues, and deliver engineering options for the organization.

Responsibilities include designing topologies, supporting devices, monitoring performance, and coordinating with suppliers. The role requires 7+ years of experience or an equivalent degree path, with strong Windows/Linux skills and VMware ESXi familiarity.