Network Administrator

About the role

We are looking for a Network Administrator to support and enhance enterprise connectivity in San Antonio, Texas. This contract opportunity with potential for a permanent role is ideal for someone who can maintain reliable network operations, improve performance, and provide timely technical support to internal teams and external partners. The person in this role will work across LAN and WAN environments, ensuring network infrastructure is well configured, documented, and aligned with business needs.

Responsibilities

• Monitor network activity and evaluate system performance to identify issues and implement improvements that increase reliability and efficiency.
• Apply software updates, patching, and hardware adjustments to maintain stable operations and address infrastructure weaknesses.
• Configure and maintain LAN and WAN components, including routers, switches, firewalls, and related network devices.
• Create and keep accurate technical documentation for network configurations, topology, and support procedures.
• Troubleshoot connectivity and performance problems reported by employees, administrators, service providers, site contacts, and vendors.
• Provide day-to-day technical support for network-related incidents, service requests, and operational questions.
• Work with stakeholders and external partners to resolve escalated issues and ensure network services meet business expectations.
• Support deployment, maintenance, and ongoing optimization of Cisco-based network environments across multiple layers of infrastructure.

Qualifications

• 5+ years of experience in network administration or data network support.
• At least 1 year of hands-on experience with LAN and WAN design, implementation, maintenance, and support.
• Practical experience with Cisco networking technologies, including Layer 2 and Layer 3 environments.
• Working knowledge of switches, firewalls, and WAN connectivity in business-critical networks.
• Familiarity with VMware and VMware Infrastructure in support of enterprise environments.
• Experience supporting Microsoft technologies such as Windows 10 and Office 365.
• Strong troubleshooting and communication skills with the ability to assist both technical and non-technical users.