Network Administrator

Description

We are looking for a Network Administrator to provide hands-on support for a complex enterprise environment in East Lansing, Michigan. This Long-term Contract position will focus on maintaining network stability, addressing security-related operational needs, and supporting critical infrastructure initiatives during a period of reduced internal staffing. The ideal candidate brings strong experience across switching, firewall administration, troubleshooting, and network segmentation, and can work effectively with minimal oversight in a fast-paced setting.

Responsibilities:
Maintain and troubleshoot core network components, including firewalls, switches, VLANs, and subnet configurations, to ensure reliable day-to-day operations.
Implement and manage network changes such as reassigning VLANs, updating subnet structures, and applying configuration adjustments from centralized management tools.
Monitor network and security activity, respond to operational issues, and coordinate firewall-related actions to support a secure and stable environment.
Provide coverage and technical support for the network infrastructure while key internal team members are unavailable, helping sustain uninterrupted service.
Contribute to a major initiative that separates the environment into distinct science and business network segments.
Assist with infrastructure deployment and transition activities required to establish and support the two-network architecture.
Support migration efforts involving firewall platforms, including work related to moving from Juniper-based solutions to Palo Alto technologies.
Execute configuration rollouts and infrastructure updates across the environment with attention to performance, security, and operational continuity.

Requirements

Proven experience administering and troubleshooting enterprise firewalls, switching environments, VLANs, and subnetting.
Strong hands-on background with firewall configuration, including work with Juniper and Palo Alto platforms.
Ability to diagnose and resolve network issues efficiently in operational environments that require timely response.
Experience supporting both networking and security-focused responsibilities within the same role.
Demonstrated success with network segmentation projects, infrastructure migrations, and large-scale configuration changes.
Comfortable working independently with limited documentation, training, or direct supervision.
Ability to respond effectively in a 24/7 environment where urgent issues may require quick decision-making.
Linux experience is a plus, along with familiarity with wireless access points and network monitoring tools.

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