DoD Network Engineer (TS/SCI) – Tier III

MANTECH; Maryland; On-site; USD 90,000 - 130,000; Full time

Job summary

MANTECH seeks an experienced and passionate Network Engineer to join our team in Annapolis Junction, MD. You will design, integrate and support DoD IP encryption methodologies across complex networks and systems.

The role requires 4+ years of network experience, a current 8570 Level II certification (Sec+ CE or CCNA), and hands-on Cisco platform skills. Travel is expected ~20–30% to support CONUS/OCONUS sites.

Qualifications

• 4 years experience with a bachelor’s degree or 4 years of experience may be substituted for education.
• Must hold a current 8570 compliance Level II certification such as Sec+ CE or CCNA.
• Hands-on Cisco platform experience (ASR/ISR/CSR/Catalyst) and network management skills.
• Able to track, analyze and monitor technology performance metrics.
• Campus area network installations (configurations, port security, VLANs).
• Familiar with site drawings, schematics, and room layouts.
• Knowledge of TCP/IP, IPv4/IPv6, DNS, and ITSM processes.

Responsibilities

• Integrate DoD IP encryption methodologies into complex networks and systems.
• Troubleshoot a range of networking technologies including OSPF, EIGRP, BGP, DMVPN, QoS, and EVPN/VxLAN.
• Provide Tier III engineering support to a distributed services team.
• Conduct site surveys and document configurations for affected equipment.
• Perform Tier 3 LAN and WAN support across CONUS and OCONUS locations.
• Install data/voice cabling for business networks and related systems.
• Travel ~20-30% to support service requirements.

Skills

Network engineering

Troubleshooting

Security compliance

LAN/WAN

VPN/DMVPN

TCP/IP

DNS

Telemetry/Monitoring

Project coordination

Education

Bachelor’s degree or 4 years experience

Tools

CCNA

8570 Level II

ServiceNow

Job description

MANTECH seeks an experienced and passionate Network Engineer to join our team in Annapolis Junction, MD. You will design, integrate and support DoD IP encryption methodologies across complex networks and systems.

The role requires 4+ years of network experience, a current 8570 Level II certification (Sec+ CE or CCNA), and hands-on Cisco platform skills. Travel is expected ~20–30% to support CONUS/OCONUS sites.