Senior Cyber Threat Intelligence Analyst - TS/SCI

Leidos; Mississippi; On-site; USD 90,000 - 150,000; Full time

Job summary

Leidos is seeking a Tier 3 Cyber Threat Intelligence Analyst to join the NOSC program supporting DHS. You will identify and track high-priority threat campaigns, analyze actors and TTPs, and develop actionable intelligence for incident response and threat hunting.

Strong upfront SIEM exposure and reporting skills are essential for situational awareness among teams. The role emphasizes deep threat research using MITRE ATT&CK, cyber kill chain concepts, and coordination with analysts to enhance

Qualifications

• Top Secret/SCI Clearance required.
• 8–12 years in IT or 8+ years in IT field with Tier III senior cyber security analyst experience.
• Experience with host-based and network-based security monitoring and creating security content.
• Ability to develop and deliver Cyber Threat Intelligence reports for peers and customers.
• Support NOSC during incident response and threat hunting activities.
• Experience correlating intelligence with internal logs and incident data to drive detection.

Responsibilities

• Identify, track and investigate high-priority threat campaigns and threat actors.
• Analyze and track the cyber threat landscape, including TTPs and actor activities.
• Develop new Cyber Threat Intelligence reports for situational awareness and actionability.
• Support incident response and threat hunting within NOSC.
• Correlate data from intelligence sources with internal logs and alerts to drive detection.

Skills

Top Secret/SCI Clearance

Threat intelligence analysis

Network security monitoring

Threat hunting

Security incident response

Written and verbal communication

Education

Bachelor's or MS in IT related field

Tools

Splunk

Analyst1

CrowdStrike Falcon

Tanium

Proofpoint TAP

Zscaler

Job description

Leidos is seeking a Tier 3 Cyber Threat Intelligence Analyst to join the NOSC program supporting DHS. You will identify and track high-priority threat campaigns, analyze actors and TTPs, and develop actionable intelligence for incident response and threat hunting.

Strong upfront SIEM exposure and reporting skills are essential for situational awareness among teams. The role emphasizes deep threat research using MITRE ATT&CK, cyber kill chain concepts, and coordination with analysts to enhance