Network Administrator

Responsibilities

• Install, configure, monitor, and maintain physical and virtual network infrastructure, including routers, switches, firewalls, and wireless access points.
• Configure and manage VLANs across fabric networks and private switches based on business unit requirements.
• Provision and configure new private switches according to infrastructure and business requirements.
• Implement user authentication and role-based access controls for network infrastructure.
• Configure, manage, and optimize dynamic routing protocols, including BGP, OSPF, and IS-IS, for internet edge routing, multi-homed ISP connections, and internal data center network paths.
• Manage and troubleshoot Top-of-Rack (TOR) switches and fabric-level network infrastructure.
• Support data center and lab infrastructure migrations, upgrades, and expansion projects in coordination with project managers and infrastructure teams.
• Perform network switch upgrades, firmware updates, and security patches to maintain compliance.
• Monitor network performance, availability, and connectivity to ensure optimal infrastructure uptime.
• Diagnose and resolve complex network connectivity issues, performance bottlenecks, and hardware-related failures.
• Manage firewall configurations, VPN connectivity, security policies, and network access controls.
• Perform vulnerability remediation and ensure compliance with enterprise cybersecurity standards.
• Maintain network documentation, including rack elevations, hardware serial numbers, port mappings, and warranty information.
• Conduct on-site physical hardware inspections, link testing, component replacements, and network connectivity checks.
• Coordinate with business units and cross-functional infrastructure teams to support network operations and resolve technical issues.
• Provide Tier III technical support for complex network and infrastructure-related incidents.

Required Qualifications

• Hands-on experience in network administration and enterprise network infrastructure management.
• Strong knowledge of routing and switching technologies in data center environments.
• Practical experience configuring and managing VLANs, fabric networks, private switches, and TOR switches.
• Strong expertise in BGP, OSPF, and IS-IS routing protocols.
• Experience with data center network infrastructure installation, configuration, maintenance, and troubleshooting.
• Experience managing network hardware upgrades, firmware updates, and security patching.
• Knowledge of firewall management, VPN configuration, network access controls, and cybersecurity practices.
• Experience performing physical network hardware installation, testing, and replacement.
• Strong troubleshooting and problem-solving skills, including Tier III network support.
• Ability to coordinate with project managers, business units, and cross-functional infrastructure teams.
• Strong documentation, communication, and incident management skills.

Preferred Qualifications

• Experience supporting large-scale enterprise data centers and lab environments.
• Familiarity with network fabric architecture and modern data center switching technologies.
• Experience with network infrastructure migration, capacity planning, and hardware lifecycle management.
• Knowledge of network monitoring and performance management tools.
• Relevant networking certifications such as CCNA, CCNP, or equivalent.
• Experience working in enterprise infrastructure and mission-critical data center environments.

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