Network Administrator

Description
We are looking for a Network Administrator to join a team in Radnor, Pennsylvania in a contract-to-permanent capacity. This role is suited for a hands-on networking specialist who can strengthen day-to-day network operations while contributing to a broader Cisco infrastructure upgrade. The position will support reliable connectivity across the enterprise, including network needs tied to an internally developed AI-focused application environment.

Responsibilities

Configure, deploy, and maintain Cisco Meraki firewalls and switching equipment across the enterprise environment. Oversee core network operations, including routing, switching, VLAN administration, VPN connectivity, and wireless network support. Track network health and performance, identify inefficiencies, and recommend improvements that increase stability and scalability. Provide network connectivity support for an AI-driven application and help ensure dependable access and performance.

Administer security controls by managing firewall policies, access permissions, and network protection standards. Investigate and resolve service interruptions, latency concerns, hardware issues, and other complex connectivity problems. Create and maintain clear technical documentation covering configurations, procedures, and infrastructure updates. Partner with IT leaders and cross-functional stakeholders to align network capabilities with business and operational needs. Contribute to infrastructure planning and assist with upcoming technology enhancements and deployment efforts.

Requirements
At least 3 years of experience in network administration, network engineering, or a closely related role. Practical experience working with Cisco Meraki firewalls and switches in an enterprise setting. Strong knowledge of TCP/IP, routing and switching concepts, VLANs, VPN technologies, and wireless networking. Solid understanding of network security principles, including access control and firewall management. Proven ability to diagnose and resolve complex network issues in business-critical environments.

Strong written and verbal communication skills, including the ability to produce accurate technical documentation. Ability to work independently while collaborating effectively with technical teams and business partners. Certifications such as CompTIA Network+ or Cisco credentials are a plus, and exposure to cloud networking or AI-related environments is beneficial. Technology Doesn't Change the World, People Do. Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies.

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