Tier II Network Engineer — TS/SCI Clearance, Layer 2/3

Footbridge Federal; Centreville (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health benefits

PTO & leave

Professional development

Job summary

Footbridge Federal is seeking a highly experienced Network Engineer to support our defense and intelligence programs in Centreville, VA. The role requires an active TS/SCI clearance with a CI Polygraph and a deep knowledge of Layer 1–3 networking, VLANs, routing protocols, and network documentation.

You will resolve incidents, implement changes, upgrade software across Cisco, Juniper, and other platforms, and ensure secure, reliable connectivity.

Qualifications

• Active TS/SCI clearance with CI Polygraph is required.
• 10 years of combined professional experience and education (e.g., Bachelor's + 6 years or HS + 10 years).
• Strong understanding of Layer 1–3 networking concepts (VLANs, port security, subnetting, OSPF, BGP, MPLS).
• Proficiency with network documentation/tracking tools (Visio, ServiceNow, Confluence).
• Ability to travel up to 20% of the time.

Responsibilities

• Resolve network incidents and address service requests within SLAs.
• Prepare and execute standard network change requests and configuration updates.
• Maintain accurate network documentation (topology drawings, inventories, asset databases).
• Manage hardware replacement for routing/switching equipment.
• Perform software/firmware upgrades across Cisco, Juniper, Brocade, Foundry.
• Support physical layer connectivity and Layer 2/3 configurations.
• Assist with COMSEC duties as required by the site.

Skills

TS/SCI clearance

Network fundamentals

Documentation tools

Travel readiness

Experience requirement

Education

Bachelor's degree + 6 years or HS + 10 years

Tools

Visio

ServiceNow

Confluence

Job description

Footbridge Federal is seeking a highly experienced Network Engineer to support our defense and intelligence programs in Centreville, VA. The role requires an active TS/SCI clearance with a CI Polygraph and a deep knowledge of Layer 1–3 networking, VLANs, routing protocols, and network documentation.

You will resolve incidents, implement changes, upgrade software across Cisco, Juniper, and other platforms, and ensure secure, reliable connectivity.