Senior Network Security Engineer: Vulnerability & STIG Lead

Leidos; Virginia Beach (VA); On-site; USD 92,000 - 167,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave and Retirement

Job summary

Leidos is seeking a Network Engineer to lead vulnerability management and STIG compliance for NMCI network infrastructure. You will provide technical leadership, approve patch deployments after lab validation, and ensure 72-hour SLA compliance across 40+ solution types supporting thousands of production devices.

You will mentor engineers, report status to senior leadership, coordinate with vendors such as F5, Cisco and Palo Alto, and drive DoD/Navy audit readiness.

Qualifications

• B.S. degree required or equivalent in experience.
• 8–12 years of network security and vulnerability management experience.

Responsibilities

• Own vulnerability management program strategy and execution.
• Approve/reject patch deployments based on lab validation results.
• Lead quarterly STIG compliance assessments and audit preparation.
• Engage vendors (F5, Cisco, Palo Alto, etc.) for escalations.
• Mentor and develop mid-level and junior engineers.
• Report program status, risks, and metrics to senior leadership.
• Lead emergency response to zero-day vulnerabilities and critical patches.
• Ensure 72-hour patch SLA compliance (>90%).
• Achieve 100% completion of quarterly STIG assessments (160/year).
• Ensure quality of patch approvals with production impact in mind.
• Oversee team performance, development, and retention.
• Ensure DoD/Navy audit readiness and compliance.

Skills

Network security

Vulnerability management

DoD STIG compliance

F5

Cisco

Firewalls

Vendor management

Leadership

Audits

Patch deployment

Education

B.S. Degree

Tools

F5

Cisco

Firewalls

Job description

Leidos is seeking a Network Engineer to lead vulnerability management and STIG compliance for NMCI network infrastructure. You will provide technical leadership, approve patch deployments after lab validation, and ensure 72-hour SLA compliance across 40+ solution types supporting thousands of production devices.

You will mentor engineers, report status to senior leadership, coordinate with vendors such as F5, Cisco and Palo Alto, and drive DoD/Navy audit readiness.