TS/SCI Network Security Engineer – Firewalls & VPNs

Footbridge Federal; Centreville (VA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health, dental, vision, retirement

Life insurance & disability coverage

Paid time off and flexible schedules

Certification support & training

Job summary

Footbridge Federal is seeking a security-focused IT professional to manage and configure enterprise firewalls, establish secure VPN tunnels, and administer NAC systems across our defense and federal civilian programs.

You will secure and monitor enterprise endpoints, support Zero Trust transition, and maintain comprehensive security documentation while providing guidance to end-users and internal teams.

Qualifications

• Active TS/SCI clearance with a Full Scope Polygraph (FSP).
• Strong background in firewall administration and VPN tunneling.
• Experience implementing Network Access Control (NAC) and access-control technologies.
• Hands-on experience securing enterprise endpoint devices and mobile emulation environments.

Responsibilities

• Manage and configure enterprise firewalls and establish secure VPN tunnels.
• Administer NAC systems and enforce access-control policies.
• Secure and monitor endpoint environments, including mobile emulation platforms like BlueStacks.
• Perform regular security assessments and support the transition toward Zero Trust security models.
• Draft, update, and maintain comprehensive network and endpoint security documentation.
• Provide technical support, training, and guidance to end-users and internal teams.

Skills

TS/SCI clearance with FSP

Firewall administration

VPN tunneling

NAC implementation

Endpoint security & mobile emulation

Education

CCNP Security

PCNSE

ITIL v4

Microsoft MCP

CompTIA Linux+

Job description

Footbridge Federal is seeking a security-focused IT professional to manage and configure enterprise firewalls, establish secure VPN tunnels, and administer NAC systems across our defense and federal civilian programs.

You will secure and monitor enterprise endpoints, support Zero Trust transition, and maintain comprehensive security documentation while providing guidance to end-users and internal teams.