Network Engineer SME

Network Engineer, SME Location: Herndon, VA Job Summary We are seeking a Subject Matter Expert (SME) Level Network Engineer with a minimum of 16 years of experience and a specialized focus on Network Access Control (NAC), particularly with significant expertise in Cisco network appliances and associated management software to support a key government customer. Responsibilities Design, implementation, and management of NAC solutions utilizing Cisco network devices, including load balancers, Linux servers, and Cisco appliances. Perform configuration, maintenance, and troubleshooting of NAC policies and profiles. Monitor network traffic for potential security threats and proactively address vulnerabilities. Collaborate with cross-functional teams to ensure network security standards align with business objectives. Stay up-to-date with the latest industry trends and best practices in network security and NAC technologies. Provide technical support and guidance to internal and external teams and clients on NAC and network security related issues. Participate in the evaluation and selection of new NAC technologies and vendors. Required Education, Experience, & Skills Minimum 16 years of experience in network engineering. Bachelor’s or Master’s degree preferred. Ability to translate customer requirements into enterprise network solutions. Proven SME level experience as a Cisco Network Engineer with a focus on network security. Strong proficiency with NAC platforms. In-depth knowledge of network protocols, TCP/IP stack, and OSI model. Experience with firewall management software such as Cisco FTD. Excellent communication and interpersonal skills. Ability to work independently and collaboratively in a fast‑paced environment. Preferred Education, Experience, & Skills Knowledge of NAC management software such as Cisco Identity Service Engine (ISE). Industry certifications such as CCNA Security, CCNP Security, REDHAT Certified Architect (RHCA), or similar. Demonstrated experience with Network Access Controls (NAC) and Cisco profiling ISE. Experience with Linux operating systems and Python scripting. Experience with a wide variety of network technologies and solutions architectures. Broad understanding of technical principles, theories, and concepts in the networking field. Knowledge of state‑of‑the‑art systems engineering principles and network design concepts. Cloud service provider and hybrid cloud experience (extending on‑premise networks to AWS, Azure, Oracle, and Google). Strong proficiency with NAC platforms is a plus. #J-18808-Ljbffr Cornerstone Defense