Cyber Defense Analyst - TS/SCI | Threat Hunting

Leidos; Capitol Heights (MD); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos is seeking a Cyber Defense Analyst to join a mission-focused team supporting the Navy's cybersecurity environment at the ONI Hopper Global Communications Center in Suitland, MD. You will monitor and investigate alerts, identify threats, and support proactive threat hunting to protect TS/SCI networks.

The role requires extensive experience with SIEMs, NIDPS, and host-based tools, plus scripting and penetration testing knowledge.

Qualifications

• Bachelor's degree in Cybersecurity or related field with 5+ years of experience.
• Active TS/SCI security clearance.
• 5+ years of concentrated experience in the CND discipline.
• 3+ years monitoring and investigating alerts from cybersecurity tools.
• Experience with SIEMs such as Splunk and Elastic.
• Experience with NIDPS such as Cisco FirePower and Palo Alto NGFW; host tools Trellix ePO, Defender, Tanium.
• Knowledge of scripting languages such as Python, PowerShell, Perl, Ruby, JavaScript, C, C++, Java.
• Knowledge of penetration testing tools such as Kali, SamuraiWTF, Nmap, Burp Suite, sqlmap, Metasploit.
• Knowledge of ticketing systems, report writing, and intelligence dissemination in cybersecurity.
• Strong analytical, conceptual, and problem solving skills.

Responsibilities

• Perform first line monitoring of security tools and initial analysis of alerts for TS/SCI networks.
• Monitor security tools for alerts, anomalies, and indicators of compromise.
• Investigate and perform initial technical analysis of cybersecurity alerts; escalate to Tier 2 as needed.
• Create and manage incident tickets within the ticketing system.
• Conduct proactive threat hunting to identify malicious activity.
• Perform wireless security scans of facilities and report findings.
• Correlate alerts across platforms to identify patterns and threats.
• Prepare and deliver operational and situational awareness briefings.
• Support annual cyber defense exercises.

Skills

Cybersecurity analysis

Threat hunting

Incident response

Scripting (Python, PowerShell)

Communication

Education

Bachelor's degree in Cybersecurity or related field

8+ years of experience in lieu of degree

Tools

Splunk

Elastic

Cisco FirePower

Palo Alto NGFW

Trellix ePO

Microsoft Defender

Tanium

Python

PowerShell

Nmap

Burp Suite

Metasploit

Kali Linux

Job description

Leidos is seeking a Cyber Defense Analyst to join a mission-focused team supporting the Navy's cybersecurity environment at the ONI Hopper Global Communications Center in Suitland, MD. You will monitor and investigate alerts, identify threats, and support proactive threat hunting to protect TS/SCI networks.

The role requires extensive experience with SIEMs, NIDPS, and host-based tools, plus scripting and penetration testing knowledge.