Network Engineer – DoD Secure Networks

About the role

MANTECH is seeking an experienced Network Engineer to join its Annapolis Junction, MD team, supporting national security missions for government intelligence agencies. The role involves designing, implementing, and maintaining secure DoD networks across domestic and overseas locations.

Key responsibilities

• Integrate DoD IP encryption methodologies into complex network architectures.
• Troubleshoot and manage protocols such as OSPF, EIGRP, BGP, DMVPN, LACP, VPLS, EVPN VxLAN, QoS, IP multicast, LSP, Spanning‑Tree, and Port‑Security.
• Provide Tier III LAN/WAN support for globally distributed customers, both CONUS and OCONUS.
• Conduct site surveys, prepare configuration documentation, and install data/voice cabling.
• Travel 20‑30% to support service requirements, including non‑hostile overseas sites.

Required profile

• Minimum 4 years of relevant experience (or equivalent education).
• Active TS/SCI clearance with Polygraph.
• Current 8570 Level II certification (e.g., Sec+ CE or CCNA).
• Ability to lift 30 lb and work in indoor/outdoor environments.

Required skills

• Cisco platforms (ASR, ISR, CSR, Catalyst).
• Network management and monitoring tools.
• Hands‑on experience with DoD IP encryption.
• Proficiency in routing and switching protocols listed above.
• Familiarity with ServiceNow or similar ticketing systems.

What we offer

• Salary range $114,600 – $190,200 per year.
• Health, life, disability, and retirement benefits.
• Paid time off, holiday pay, and flexible work options.
• Learning and development, wellness programs, and other optional benefits.