Network Administrator III
Winter Park, FL
Experience: 0
Category: Information Technology
Contractor Work Model: Onsite
Brand: System One
Compensation Range: 100000.00 - 120000.00
Job ID: 381433
Date Posted: 10/05/2026
Shortcut: http://jobs.systemone.com/8MMgQx
Job Title: Network Administrator III
Location: Winter Park, FL
Type: Direct Hire
Job Summary:
System One is seeking a Network Administrator III for a full-time, permanent onsite position in Winter Park, FL. The Network Administrator III is responsible for leading and managing network projects by recommending solutions to network strategy and security issues, as well as providing network-engineering solutions/options for the organizatio
Responsibilities
- Lead and manage network projects, recommending solutions for network strategy and security issues
- Develop detailed network specifications and support new project scope work
- Maximize network equipment functionality including routers, switches, load balancers, and firewalls
- Perform risk assessments on existing or new systems and recommend security improvements
- Interact with vendors, outsourcers, and contractors to secure network products and services
- Conduct network analysis, capacity planning, and testing for LAN/WAN environments
- Stay current on security threats, standards, and products; create and update cybersecurity procedures and documentation
- Assist with design, installation, and testing of network topologies for Internet and data transport channels
- Support installation and maintenance of PC/Server hardware and software
- Design and manage wireless networking solutions, monitor network health and security infrastructure
- Troubleshoot Windows and Linux IP-based LANs/WANs and IP routing/bridging solutions
- Understand multi-ISP/WAN load-balancing, including SD-WAN technologies
- Perform routine/emergency maintenance of data center equipment
- Monitor network security to detect and prevent intrusions, work with vendors to investigate breaches
- Analyze LAN/WAN changes, reconfigurations, and perform penetration testing/security audits
- Maintain network performance monitoring and security log analysis
- Support remote access technologies such as VPN, ZeroTrust, and cloud-based solutions
- Conduct response drills and improve incident response processes
- Troubleshoot VoIP issues including latency and jitter
- Respond to security system and physical security emergencies, including after-hours support
- Continually research emerging security threats and technologies
Requirements
- Undergraduate degree in a related field or 7+ years of experience/training in network administration
- Proven experience in cybersecurity product support, network performance tuning, LAN design, and Cisco routers and switches
- Familiarity with network monitoring tools such as Solarwinds, Manage Engine, Zabbix, etc.
- Experience with Meraki and Sophos Cloud Management is a plus
- In-depth knowledge of computer hardware and software
- Strong attention to detail, communication skills, proficiency in Excel and Word
- Organizational skills; occasional travel required
- Windows and Linux knowledge helpful, with experience in VMWare ESXi Hypervisor
System One, and its subsidiaries including Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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Ref: #690-Tech Tampa IT
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