Network Administrator

T and T Consulting Services, Inc.

Network Administrator at a medical education campus supporting Army, Navy, Air Force, and Coast Guard medics. Responsibilities include managing network security and infrastructure for educational facilities.

Posted 5/21/2026full-timeSan Antonio • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

DNSUnityVoIP

About the role

Key responsibilities & impact

Apply established technical standards and security policies for LAN topologies and network components
Identify, analyze, and remediate network security vulnerabilities
Install, configure, troubleshoot, and maintain enterprise network devices including Layer 2 and Layer 3 switches and routers
Implement, troubleshoot, and support Voice over IP (VoIP) solutions
Manage and administer Cisco Call Manager and Cisco Unity systems
Provide local common-user LAN and Campus Area Network (CAN) support, including troubleshooting and repair
Install, configure, support, and troubleshoot Virtual Private Network (VPN) solutions for remote connectivity
Monitor LAN and CAN environments using enterprise network management tools
Generate and provide network utilization and performance reports
Manage network hardware and software including configuration management and capacity management
Develop, draft, and maintain Standard Operating Procedures (SOPs) related to network operations
Maintain flexibility in scheduling to support after-hours or weekend work for special projects when required

Requirements

What you’ll need

Bachelor’s degree in computer science, Information Technology, or a related field
6+ years of experience in network administration, with significant experience in a government or complex enterprise environment
DoD 8570/8140 IAT Level II baseline certification with current Continuing Education (CE) certification
Or - Cisco Certified Network Associate (CCNA) or Cisco Certified Network Professional (CCNP)
Demonstrated experience with enterprise network management and monitoring tools including: CiscoWorks, NetView, and SolarWinds Orion
Experience with wireless networking technologies including IEEE 802.11b/g/n standards
Knowledge of wireless authentication protocols including EAP, PEAP, EAP-TLS, and EAP-TTLS
Strong understanding of cabling standards, core networking protocols and services including TCP, UDP, IP, STP, CDP, HSRP, DNS, DHCP, VTP, VPN, FTP, TFTP, IAS, VoIP, NAT, and IEEE 802.1X
Experience configuring, administering, and troubleshooting network hardware including Cisco ASA 5500 Series Adaptive Security Appliances
Experience providing technical troubleshooting and touch support for enterprise or commercial network environments

Benefits

Comp & perks

Competitive benefits package including health, dental, vision, life insurance coverage
401(k) Plan
Training Programs
Accrued Paid Time Off (PTO)
Paid Holidays

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

network administrationnetwork securityLAN topologiesVoIP solutionsVPN solutionsnetwork managementnetwork troubleshootingcabling standardsnetwork protocolswireless networking

Soft Skills

flexibilityproblem-solvingcommunicationtechnical troubleshootingorganizational skills

Certifications

Bachelor's degree in computer scienceIAT Level II certificationCisco Certified Network Associate (CCNA)Cisco Certified Network Professional (CCNP)