Cyber Vulnerability Analyst – TS/SCI Defense Expert

00100 LEIDOS, INC.; Suitland (MD); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos seeks a Cyber Vulnerability Analyst to join a mission-focused team in Suitland, MD, defending TS/SCI networks. You will monitor and analyze cybersecurity alerts, perform vulnerability assessments, and support threat hunting and incident response across DISA/NAVSEA tools.

The role requires 4+ years of relevant experience, active TS/SCI clearance, and hands-on knowledge of ACAS, eMASS, SIEM, and NIDS/NIPS technologies. You will contribute to RMF assessments and security briefings.

Qualifications

• Bachelor's degree in Cybersecurity or related field with 4+ years of experience (Masters accepted for fewer years).
• Active TS/SCI clearance required.
• Experience with ACAS vulnerability management tool.
• Experience with eMASS GRC tool.
• Experience with SIEM systems (Splunk, Elastic).
• Knowledge of NIDS/NIPS and NGFWs (Cisco FirePower, Palo Alto).
• Scripting knowledge (Python, PowerShell).
• Familiarity with penetration testing tools (Kali, Burp Suite, Nmap).
• Experience monitoring and investigating alerts from cybersecurity tools.
• Strong analytical and problem-solving skills.

Responsibilities

• Perform continuous monitoring of DISA and NAVSEA cybersecurity tools and analyze software updates for TS/SCI networks.
• Investigate and perform initial technical analysis of vulnerabilities and events; escalate as needed.
• Conduct RMF NIST SP 800-53 risk assessments of ATO packages for authorization.
• Create, update, and manage incident and event tickets in the ticketing system.
• Conduct proactive threat hunting to identify malicious activity and emerging threats.
• Perform wireless ACAS vulnerability scans of enterprise assets and document findings.
• Correlate vulnerabilities and events across platforms to identify trends and threats.
• Prepare and deliver operational and situational awareness briefings.
• Support annual enterprise STIG compliance cyber defense exercises.

Skills

Vulnerability management

ACAS

eMASS

SIEM Splunk

NIDS / NIPS

Cisco FirePower

Palo Alto NGFW

Tanium

Python scripting

Threat hunting

Incident response

Education

Bachelor's degree in Cybersecurity

Master's degree in related field

Tools

ACAS

eMASS

Splunk

Elastic

Trellix ePO

Microsoft Defender

Kali

Burp Suite

Nmap

Metasploit

Job description

Leidos seeks a Cyber Vulnerability Analyst to join a mission-focused team in Suitland, MD, defending TS/SCI networks. You will monitor and analyze cybersecurity alerts, perform vulnerability assessments, and support threat hunting and incident response across DISA/NAVSEA tools.

The role requires 4+ years of relevant experience, active TS/SCI clearance, and hands-on knowledge of ACAS, eMASS, SIEM, and NIDS/NIPS technologies. You will contribute to RMF assessments and security briefings.