Responsibilities include designing, implementing, and maintaining firewalls, routers, switches, and telecom systems, ensuring security and compliance (e.g., NIST 800-171), troubleshooting issues, managing documentation, collaborating across departments, and leading network upgrades. Requirements: U.S. citizenship, a Bachelor's degree, 8+ years in network engineering, experience with Palo Alto firewalls, Juniper devices, networking protocols, and telecom technologies.