MANTECH seeks a motivated, career- and customer-oriented **Network Administrator** with a focus on Cisco Networks to join our team in **Laurel, MD** . You will be part of a mission-driven team delivering enterprise infrastructure capabilities to support a global workforce engaged in national defense operations. This position is part of the Enterprise Infrastructure Services (EIS) organization—responsible for MPO’s Enterprise Information Technology (EIT), the backbone platform supporting all enterprise users. You will work with customers, Integrated Product Teams (IPTs), and vendors to deliver secure and reliable network services across Data Center & Compute environments.

**Responsibilities include, but are not limited to:**

+ Maintain and upgrade network infrastructure, including routers and switches
+ Update and configure antivirus software and other tools to secure the network
+ Apply Security Technical Implementation Guide (STIG) updates to switches and fo...