Senior Top Secret Network Plan Engineer - Onsite Dahlgren

L3Harris Technologies, Inc.; Dahlgren (VA); On-site; USD 89,000 - 165,000; Full time

Benefits offered by this job

Health and disability insurance

401(k) match

Paid time off

Parental leave

Educational assistance

Job summary

L3Harris Technologies in Dahlgren, VA seeks an experienced Network Plan Engineer who will design, operate, and secure enterprise networks with emphasis on Juniper, Cisco, and automation. The role supports Zero Trust, DISA STIG compliance, and high‑availability environments onsite at Naval Support Facility Dahlgren.

The ideal candidate will lead network modernization efforts, perform advanced troubleshooting, and guide junior engineers while coordinating with cybersecurity and external teams.

Qualifications

• Active Top Secret clearance with SCI access within 6 months.
• Bachelor’s or higher degree in a related field with minimum years experience.
• 6+ years of enterprise DoD/federal network experience.

Responsibilities

• Design, implement, maintain, and troubleshoot enterprise network infrastructure across classified and unclassified environments
• Administer and optimize network deployments
• Support routing and switching: BGP, OSPF, VLANs, STP
• Perform root-cause analysis of complex network incidents
• Plan network upgrades and patching with minimal impact
• Develop network diagrams, SOPs, and technical docs
• Automate configurations and deployments using scripting/templates
• Support Zero Trust initiatives and DISA STIG compliance
• Lead training and mentor junior engineers

Skills

Top Secret Clearance

6+ years DoD network experience

Juniper devices

Cisco devices

Network troubleshooting

Network automation

Education

Bachelor’s Degree in Network Engineering/IT/Cybersecurity

Graduate Degree (optional)

Tools

Apstra Data Center Director

Cisco ISE

ViaSat encryption devices

Job description

L3Harris Technologies in Dahlgren, VA seeks an experienced Network Plan Engineer who will design, operate, and secure enterprise networks with emphasis on Juniper, Cisco, and automation. The role supports Zero Trust, DISA STIG compliance, and high‑availability environments onsite at Naval Support Facility Dahlgren.

The ideal candidate will lead network modernization efforts, perform advanced troubleshooting, and guide junior engineers while coordinating with cybersecurity and external teams.