System Administrator III; Onsite
Listed on 2026-02-16
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IT/Tech
Cybersecurity, Systems Administrator
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.
ResponsibilitiesKey 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.
Requirements
- Bache…
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