Senior Network Security Engineer, TS/SCI On-Site

Armison Tech; Chantilly (VA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Excellent benefits

Job summary

Armison Tech is seeking a Network Engineer to support large-scale enterprise/network infrastructure in a Chantilly, VA on-site environment. Active TS/SCI with polygraph is required, with 10+ years of cybersecurity experience and a technical degree.

The role emphasizes security policy enforcement, risk assessments, and collaboration across teams. The ideal candidate will demonstrate deep networking expertise (TCP/IP, MPLS, SONET, Ethernet) and experience with virtualization across multi-cloud,

Qualifications

• Active TS/SCI with polygraph clearance required.
• 10+ years of cybersecurity experience with a technical degree.
• Strong networking knowledge including TCP/IP, MPLS, SONET, Ethernet.
• Experience with virtualization across multi-cloud, on‑prem, and hybrid environments.
• Experience identifying information security risks in an enterprise IT environment.
• Experience contributing to development of SSPs and A&A documentation.

Responsibilities

• Support large-scale enterprise network infrastructure and information systems.
• Lead and manage cybersecurity risk assessments.
• Propose, coordinate, implement and enforce information systems security policies and standards.
• Review and approve changes to accredited systems and network configurations.

Skills

Networking

TCP/IP

MPLS

SONET

Ethernet

Firewall

Virtualization

Multi-cloud

Security risk assessment

Encryption

Education

Technical degree

Job description

Armison Tech is seeking a Network Engineer to support large-scale enterprise/network infrastructure in a Chantilly, VA on-site environment. Active TS/SCI with polygraph is required, with 10+ years of cybersecurity experience and a technical degree.

The role emphasizes security policy enforcement, risk assessments, and collaboration across teams. The ideal candidate will demonstrate deep networking expertise (TCP/IP, MPLS, SONET, Ethernet) and experience with virtualization across multi-cloud,