Network EngineerAre you a highly experienced Network Engineer with a passion for secure, scalable infrastructure design and implementation? We're looking for a Subject Matter Expert (SME) Network Engineer who thrives in complex, mission-critical environments and brings deep knowledge of network architecture, cloud integration, and Network Access Control (NAC) technologies.The ideal candidate will bring experience in enterprise network engineering, with hands-on expertise in Cisco platforms, NAC implementations, and secure hybrid-cloud network solutions. The location of this job is Herndon, VA.Responsibilities:Design, implement, and manage complex enterprise network architectures across on-prem and cloud environments (AWS, Azure, etc.)Deploy and optimize Network Access Control (NAC) solutions, particularly Cisco ISE, across a wide range of network appliances and endpointsConfigure and troubleshoot core network services including routing (EIGRP, BGP), switching (STP, LACP), and security protocols (ACLs, VPNs, firewalls)Monitor network performance, identify potential threats, and implement remediation strategies proactivelySupport network automation, virtualization, and SDN efforts to modernize infrastructure and improve operational agilityCreate and maintain technical documentation including architecture diagrams, design specs, implementation plans, and operational proceduresCollaborate with cross-functional teams and mentor junior engineers on network engineering best practices and security standardsRequirements:Technical Bachelors DegreeExperience in designing and managing enterprise networks with a strong focus on Cisco platformsDeep understanding of network protocols (TCP/IP, DNS, DHCP, etc.) and routing/switching technologiesProficiency with NAC platforms and security tools (Cisco ISE, Cisco ASA/FTD, etc.)Experience with Linux systems, network scripting (e.g., Python), and infrastructure automation toolsStrong understanding of cloud networking principles and hybrid-cloud architectures (AWS, Azure, Google Cloud, etc.)