Network Administrator III

Dexian

$80K — $95K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Active Secret (or higher) security clearance required.
  • Minimum of Security+ (IAT II) certification or equivalent.
  • Bachelor's degree in Information Technology, Computer Science, or related field.
  • 5+ years of hands-on experience in network engineering, design, and troubleshooting.
  • Strong knowledge of networking protocols like TCP/IP, DNS, DHCP, BGP, OSPF.
  • Familiarity with leading networking equipment (Cisco, Juniper).
  • Experience in Software Defined Networking (SDN) fundamentals or Cisco ACI.

Responsibilities

  • Serve as the escalation point for complex network incidents.
  • Support the design and optimization of LAN, WAN, and WLAN networks.
  • Diagnose advanced routing, switching, and firewall issues.
  • Conduct root-cause analyses for major network incidents.
  • Monitor and troubleshoot network performance to ensure uptime.
  • Develop and maintain comprehensive network documentation.
  • Collaborate with cybersecurity teams on compliance and vulnerability management.

Benefits

  • Open Paid Time Off and 11 Federal Paid Holidays.
  • Company-paid Life/AD&D and Short/Long-Term Disability.
  • Health Insurance with Company Contributions.
  • 401k Plan with Company Match.
  • Employee Recognition and Referral Bonus programs.
Full Job Description
Dexian Government Solutions is recruiting for a Network Administrator III to support our contract at PEO STRI in Orlando, FL.

Location: Orlando, FL

Position Overview:

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.

Job Duties:
  • 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.

Required Qualifications:
  • 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, troubleshooting, and design.
  • Strong understanding of networking protocols (TCP/IP, DNS, DHCP, BGP, OSPF, etc.).
  • Deep familiarity with Cisco, Juniper, or similar enterprise network equipment.
  • Strong knowledge of firewalls, IDS/IPS, and network access controls.
  • Excellent troubleshooting, analytical, and problem-solving skills.
  • Proven experience with high-availability designs and disaster recovery solutions
  • Relevant certifications such as CCNA, CCNP, or equivalent are preferred.
  • Experience in ISE and STIGs
  • Software Defined Networking (SDN) fundamentals or experience with Cisco ACI


Benefits

Our robust benefits package includes Open Paid Time Off, 11 Federal Paid Holidays & 5 Paid Sick Days, Company-paid Life/AD&D, Company-paid Short Term and Long-Term Disability, Health Insurance with Company Contribution, 401k Plan with Company Match, Employee Recognition Program, opportunity for Employee Referral Bonus, opportunity for annual Performance Bonus and much more!

This role requires an active Secret Security Clearance, customer approval, and successful completion of a pre-employment background screening.

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