System Administrator III (Onsite) jobs in United States
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Lee County Tax Collector · 1 day ago

System Administrator III (Onsite)

Lee County Tax Collector is seeking a dynamic and resourceful Systems Administrator to join their team. The role involves handling a wide range of data networking responsibilities, including managing network infrastructure, security compliance, and providing technical guidance to junior staff.

GovernmentNon ProfitTax Consulting

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

Qualification

Network Infrastructure AdministrationCisco RoutersPalo Alto Networks FirewallsBGPWANLAN TopologiesDisaster Recovery SolutionsMicrosoft Active DirectoryTechnical GuidanceEmerging TechnologiesCollaboration

Required

Bachelor's degree with major course work in Computer Science and five years' work experience related to enterprise level computer system/network administration, management, or support; or equivalent combination of education, training, and experience as determined by ITS Management
Background check required
Valid Florida Driver's License required
May require after hours, weekend or emergency (natural disaster, major incident, etc.) support
Knowledge and experience implementing disaster recovery solutions, with proven ability to perform failovers in high-availability environments
Strong desire to learn and apply emerging technologies

Preferred

Knowledge of Microsoft Windows client/server operating systems and Microsoft Active Directory desired
Knowledge of Microsoft client and server patch management processes desired

Company

Lee County Tax Collector

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Lee County Tax Collector is a government organization that specializes in property taxes, hunting, fishing, and weapon license services.

Funding

Current Stage
Growth Stage

Leadership Team

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Cindy McClung
Chief Performance and Innovation Officer
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Lauren Stillwell B.
Chief Communications Officer (CCO)
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Company data provided by crunchbase