TS/SCI Vulnerability Analyst — Nessus & STIGs (Part-Time)

Omniscius Consulting; Maryland; On-site; USD 100,000 - 140,000; Part time

Job summary

Omniscius Consulting seeks a Vulnerability Assessment Analyst / ISSE to support vulnerability management and continuous monitoring in a highly secure environment. The role emphasizes Tenable Security Center, Nessus/ACAS scanning, DISA STIG compliance, and Windows/Linux security.

The position is based at a contractor site in Annapolis Junction, Maryland, with a part-time evening and weekend schedule. Active TS/SCI clearance with Full Scope Polygraph is required.

Qualifications

• Active DoD 8570 IAT Level II requirements.
• CompTIA Security+ CE or CEH certifications.
• Training alone is not acceptable as a substitute for the required CE certification.

Responsibilities

• Maintain and optimize the Tenable Security Center infrastructure.
• Perform security assessments, patching, and vulnerability scans of Linux and Windows systems.
• Identify and mitigate DISA STIG findings and vulnerabilities across Tenable and Nessus scanning servers.
• Install, configure, maintain, and update Tenable Nessus and Tenable Security Center software.
• Configure and fine-tune vulnerability scanning policies and asset lists.
• Conduct recurring vulnerability assessments across multiple device types and operating systems.
• Use Nessus/ACAS to identify vulnerabilities across customer assets as part of continuous monitoring.
• Review Nessus/ACAS scan results and provide remediation guidance.
• Analyze vulnerability scan results and develop comprehensive reports.
• Monitor and track vulnerability remediation activities through completion.
• Coordinate with IS Security personnel and other teams to ensure timely remediation.
• Communicate security posture and risks to stakeholders.
• Maintain documentation related to vulnerabilities and security incidents.

Skills

Tenable Security Center

Nessus/ACAS

DISA STIGs

CIS Benchmarks

Linux/Unix

Windows administration

Networking

Patch deployment

System configuration

Education

Bachelor's Degree

High School Diploma/GED

Tools

ACAS

Job description

Omniscius Consulting seeks a Vulnerability Assessment Analyst / ISSE to support vulnerability management and continuous monitoring in a highly secure environment. The role emphasizes Tenable Security Center, Nessus/ACAS scanning, DISA STIG compliance, and Windows/Linux security.

The position is based at a contractor site in Annapolis Junction, Maryland, with a part-time evening and weekend schedule. Active TS/SCI clearance with Full Scope Polygraph is required.