Network Administrator III

About the role

Dexian Government Solutions is recruiting for a Network Administrator III to support our contract at PEO STRI in Orlando, FL. The Network Administrator III provides advanced technical leadership, troubleshooting, and engineering support across enterprise network environments. This role acts as the highest escalation tier for complex network issues, supports modernization and migration efforts, and ensures resiliency, compliance, and performance of mission‑critical systems.

Dexian Government Solutions is an award-winning, ISO 9001:2015 certified, business and GSA contract holder providing diversified Information Technology services to both Civilian and Defense agencies. Services include Software Development, Systems Integration, Data Management, Project Management, Operations & Maintenance, Cybersecurity, and Training and Audio/Visual (AV) Solutions. Dexian Government Solutions has received several recognitions, including rankings on "Top 50 Companies to Watch", Washington Technology's Annual "FAST 50", and Inc. 500's List of "Fastest Growing Private Companies". The Dexian Government Solutions team is comprised of individuals who are dedicated to the success and sustainability of our customers and their missions. Our combination of technical expertise, big business experience, and small business agility allows us to promptly provide our customers with exceptional IT and engineering solutions.

Responsibilities

• Serve as the top-tier escalation point for complex network incidents and performance issues.
• Support the design, implementation, and optimization of LAN, WAN, WLAN, and data center networks.
• Diagnose and resolve advanced routing, switching, firewall, and access control problems across multi‑site environment
• Conduct root‑cause analysis for major incidents and develop corrective action plans.
• Monitor network performance, troubleshoot issues, and ensure high availability and uptime.
• Develop and maintain network documentation, including diagrams, configurations, and standard operating procedures.
• Collaborate with cybersecurity teams to address vulnerabilities, boundary protection updates, and compliance actions.

Requirements

• Must possess a minimum of a Security+ (IAT II) certification (or an approved IAT II equivalent).
• Must possess an active Secret (or higher) security clearance.
• Bachelor's degree in Information Technology, Computer Science, or a related field.
• 5+ years of hands-on network engineer experience in implementation