Network Administrator

Halian | Managed Services, Recruitment Agency & Contract Staffing; Austin (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Halian is seeking an experienced Network Administrator to support a large-scale government network in Austin, Texas. The role focuses on maintaining and enhancing critical infrastructure across multiple locations while providing Tier III support for complex issues.

The ideal candidate will have strong enterprise networking experience, a security-minded approach, and familiarity with regulated environments such as government, education, or healthcare.

Qualifications

• 5+ years administering enterprise networks across locations.
• 3+ years implementing site-to-site IPsec VPNs.
• 3+ years managing enterprise network monitoring tools.
• 3+ years SAN networking: SAN switches, routers/bridges, iSCSI, FCoE/AoE/FCP.
• 2+ years supporting cloud networking environments.
• Experience with virtualized network environments.
• Current CCNA/CCNP/CCIE certification.

Responsibilities

• Plan, design, implement, monitor, and maintain enterprise network infrastructure.
• Support data, voice, cloud, virtualized, SAN, and remote networking environments.
• Configure and maintain site-to-site VPN/IPSEC connectivity.
• Manage and monitor network performance using enterprise monitoring tools.
• Serve as Tier III escalation support for network incidents and service requests.
• Evaluate and implement network improvements and enhancements.
• Support Aruba network infrastructure and security initiatives.
• Work closely with vendors and technical support teams to resolve complex issues.

Skills

Enterprise networking

Routing & switching

VPN/IPSEC

Security mindset

Troubleshooting

Vendor coordination

Cloud networking

Virtualized networks

Aruba networking

Education

CCNA/CCNP/CCIE certification

Tools

Aruba Central

Aruba ClearPass

Monitoring tools

SAN / iSCSI

VPN tools

Job description

We are seeking an experienced Network Administrator to support a large-scale enterprise network environment for a government organization in Austin, Texas. This role will be responsible for maintaining and enhancing critical network infrastructure across multiple locations while providing Tier III support for complex networking issues.

The ideal candidate will have strong enterprise networking experience, a security-focused mindset, and experience working within government, public sector, education, healthcare, or other highly regulated environments.

Key Responsibilities

• Plan, design, implement, monitor, and maintain enterprise network infrastructure.
• Support data, voice, cloud, virtualized, SAN, and remote networking environments.
• Configure and maintain site-to-site VPN/IPSEC connectivity.
• Manage and monitor network performance using enterprise monitoring tools.
• Serve as Tier III escalation support for network incidents and service requests.
• Evaluate and implement network improvements and enhancements.
• Support Aruba network infrastructure and security initiatives.
• Work closely with vendors and technical support teams to resolve complex issues.

Required Experience

• 5+ years administering enterprise networks across multiple locations.
• 3+ years implementing and supporting site-to-site/IPSEC VPN connectivity.
• 3+ years managing enterprise network monitoring tools.
• 3+ years supporting SAN networking technologies including:
• SAN switches
• Routers and bridges
• iSCSI
• FCoE
• AoE
• FCP
• 2+ years supporting cloud networking environments.
• Experience working in virtualized network environments.
• Current CCNA, CCNP, or CCIE certification.

Preferred Experience

• State Government, Federal Government, County, Court System, Higher Education, or Public Sector experience.
• Experience supporting highly distributed enterprise environments.
• Aruba ClearPass and Aruba Central.
• Experience coordinating with vendor technical support teams.
• Experience working in fast-paced environments with changing priorities.

Ideal Candidate

You are a senior-level Network Administrator who has worked in large enterprise or government environments and is comfortable supporting complex networking infrastructure. You have strong routing, switching, VPN, cloud, SAN, and Aruba experience and enjoy troubleshooting critical network issues while driving continuous improvement.