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System Administrator III; Onsite

Job in Fort Myers, Lee County, Florida, 33916, USA
Listing for: Lee County Tax Collector
Full Time position
Listed on 2026-02-16
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 74500 USD Yearly USD 74500.00 YEAR
Job Description & How to Apply Below
Position: System Administrator III (Onsite)

Overview

Description

This role is based onsite in Fort Myers. The salary range for this position is $74,500.00 - $, with starting salary dependent upon experience, qualifications, and relevant background.

Are you a people-person who loves variety in your workday? Do you thrive on helping others, solving problems, and keeping things organized behind the scenes? We’re looking for a dynamic and resourceful Systems Administrator to join our team!

In this role, you won’t be stuck doing just one thing — you’ll be at the heart of our Information Technology operations, handling a wide range of data networking responsibilities, including data switching, routing, firewalls, intrusion detection, intrusion prevention, and more. If you enjoy diving into different areas of technology and making a real impact on employees’ day-to-day experiences, this is the opportunity for you.

Why Join Us?

At our organization, we believe HR is more than policies and paperwork — it’s about people, purpose, and creating a workplace where everyone can thrive. As part of our HR team, you’ll have the chance to:

  • Make a meaningful difference in employees’ lives
  • Take ownership of impactful programs and projects
  • Bring your ideas to the table — and see them in action
  • Work with a supportive team that values collaboration, growth, and innovation

If you re ready to bring your skills and experience to a place where they matter every day, we’d love to meet you.

Responsibilities

Key Responsibilities:

Network Infrastructure Administration

  • Design, deploy, configure, and maintain enterprise network infrastructure supporting LAN, WAN, and data center environments
  • Administer and support Cisco routers
    , ensuring optimal performance, scalability, and security
  • Administer and support Extreme Networks switches
    , including VLANs, STP, and QoS
  • Manage and maintain Palo Alto Networks firewalls
    , including security policies, NAT, VPNs, and threat prevention features

Routing, Switching, and Network Protocols

  • Configure and manage advanced routing protocols, including BGP
    , OSPF, and static routing
  • Design and maintain failover routing
    , redundancy, and high-availability solutions
  • Implement and troubleshoot Layer 2 and Layer 3 technologies (VLANs, subnets, ACLs, IP addressing schemes)
  • Ensure efficient traffic flow and performance optimization across the network

WAN / LAN Architecture & Connectivity

  • Design, implement, and maintain WAN and LAN topologies across multiple sites
  • Manage site-to-site and remote connectivity solutions, including VPNs and secure tunnels
  • Coordinate with ISPs and vendors for circuit provisioning, performance issues, and outages

Security & Compliance

  • Enforce network security best practices and standards across all infrastructure
  • Monitor, analyze, and respond to security events and vulnerabilities
  • Ensure firewall rules, segmentation, and access controls align with organizational policies
  • Participate in audits and compliance initiatives as required

Monitoring, Troubleshooting & Optimization

  • Proactively monitor network performance, availability, and capacity
  • Diagnose and resolve complex network issues across routing, switching, and firewall platforms
  • Perform root cause analysis and implement long-term corrective actions
  • Maintain network documentation, diagrams, and configurations

Disaster Recovery & Business Continuity

  • Design, test, and maintain disaster recovery and business continuity plans for network services
  • Implement redundancy and geographic failover solutions
  • Participate in DR testing, incident response, and post-incident reviews

Change Management & Documentation

  • Plan and execute network changes following change management processes
  • Maintain accurate and up-to-date documentation, including network diagrams and configuration standards
  • Develop and enforce operational procedures and best practices

Collaboration

  • Provide technical guidance and mentorship to junior network and systems staff
  • Collaborate with systems, security, and application teams on infrastructure initiatives
  • Evaluate and recommend new technologies, tools, and upgrades

Other Technologies

  • Assist other Systems team personnel as needed with technology issues in Microsoft and AWS environments.
Qualifications

Requirements

  • Bache…
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