Senior Network Engineer

Millennium Corporation • Charleston, SC

80d

About The Position

Millennium Corporation is hiring a Senior Network Engineer to work onsite in Charleston, SC. The candidate must have an active Top Secret clearance. The Senior Network Engineer will design, implement, and maintain secure and resilient network infrastructures supporting Marine Corps Information Technology (IT) systems under NIWC Atlantic’s Expeditionary Enterprise Systems and Services (E2S2) Division. Responsibilities include configuring, managing, and optimizing network technologies, supporting the integration of diverse network operating systems, conducting network performance monitoring, and developing network architecture documentation. The role also involves providing technical leadership, assisting in project planning, and coordinating with external vendors.

Requirements

• Active Top Secret Clearance required.
• Bachelor’s degree in Engineering and 7+ years of IT/network engineering experience.
• Hands-on experience with Marine Corps networks (enterprise and/or tactical environments).
• Proficiency in Cisco SD-WAN, BGP, DMVPN/FlexVPN, HAIPE devices, and Multicast technologies.
• Demonstrated ability to integrate diverse network operating systems, applications, and hardware across the full system lifecycle.
• Must obtain a professional or platform-specific certification within 12 months.

Nice To Haves

• CCNP, CCDP, VCP, OCP, RHCP, or Microsoft role-based certifications (e.g., MCAD, MCDBA).
• Equivalent cloud or software engineering certifications may be accepted with COR approval.

Responsibilities

• Design, implement, and maintain secure and resilient network infrastructures supporting Marine Corps IT systems.
• Configure, manage, and optimize network technologies, including Cisco SD-WAN, BGP, DMVPN/FlexVPN, HAIPE, and Multicast routing protocols.
• Support the integration of diverse network operating systems, hardware devices, and enterprise/tactical applications.
• Conduct network performance monitoring, troubleshooting, and capacity planning.
• Develop and maintain network architecture documentation, configuration baselines, and implementation guides.
• Collaborate with cross-functional engineering teams to design hybrid software, web, and hardware solutions.
• Ensure adherence to cybersecurity and information assurance requirements.
• Provide technical leadership and mentorship to junior engineers and support personnel.
• Assist in project planning and execution, including defining scope, estimating costs, and managing schedules.
• Coordinate with external vendors and carriers to support connectivity and service-level agreements.
• Participate in regular engineering sync sessions and stakeholder reviews.
• Travel as required (up to 45 days annually) to support field installations, testing, and site sustainment.

What This Job Offers

• Career Level: Senior
• Education Level: Bachelor's degree