For two decades, Millennium Corporation has been operating on the leading edge of cybersecurity. Our elite team of more than 300 experts has an unparalleled record of performance supporting Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering. With the largest contingent of contracted Red Team operators in the DoD, we provide an unmatched level of threat intelligence and battle-tested experience for customers in both the DoD and federal civilian markets. What We Believe Millennium is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law. Millennium Corporation is hiring a Lead Network Engineer to work in Arlington, VA . The candidate must have an active TS/SCI. The Lead Network Engineer serves as a designated Key Personnel for a Federal Civilian Agency. This senior-level subject-matter expert is responsible for the architecture, engineering design, testing, implementation, and integrity of th Agency's enterprise-wide network infrastructure, including Wide Area Network (WAN), Local Area Network (LAN), Software-Defined Networking (SDN), cloud interconnectivity, Domain Name System (DNS), wireless, and related enterprise network tools in both on-premises and cloud environments (commercial, private, and hybrid). This position requires an active Top Secret/SCI clearance (TS/SCI) for the duration of performance and the ability to work on-site in the National Capital Region (Arlington, VA) with occasional telework as approved.