Lead Network Security & Vulnerability Engineer

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

Job summary

Leidos Inc. 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 across 40+ solution types supporting thousands of devices.

Qualifications include a BS with 8–12 years in network security, active Secret clearance, and DoD STIG experience. Expect vendor engagement, mentoring, and regular leadership reporting.

Qualifications

• Requires B.S. Degree and 8–12 years network security and vulnerability management experience; years of experience can be in lieu of degree.
• Must be a U.S. Citizen and possess an active Secret clearance.
• Expert knowledge of F5, Cisco, firewalls, and enterprise network infrastructure.
• DoD STIG compliance and audit experience.
• Strong vendor relationship and escalation management skills.
• CISSP, CCNP, or equivalent certifications preferred.

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.) at executive/technical levels 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.
• 72-hour patch SLA compliance (>90%).
• 100% completion of quarterly STIG assessments (160/year).
• Quality of patch approvals - accountable for production impact.
• Team performance, development, and retention.
• DoD/Navy audit readiness and compliance.

Skills

Vulnerability management

Network security

Patch management

Vendor management

STIG compliance

F5

Cisco

Firewalls

DoD/DoN compliance

Education

Bachelor's degree

Tools

F5

Cisco

Firewalls

Job description

Leidos Inc. 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 across 40+ solution types supporting thousands of devices.

Qualifications include a BS with 8–12 years in network security, active Secret clearance, and DoD STIG experience. Expect vendor engagement, mentoring, and regular leadership reporting.