Senior Cyber Security Fusion Analyst

Leidos seeks a Senior Cyber Security Fusion Analyst to join our mission-driven cyber team supporting national security and critical infrastructure clients. In this role, you will lead fusion analysis across network, endpoint, and threat intelligence data to identify advanced threats and drive rapid, effective response. You will design and refine analytic use cases, conduct threat hunting, and produce actionable intelligence for technical and executive stakeholders. Collaborating in a highly innovative, learning-focused environment, you will mentor junior analysts and help shape Leidos' next-generation cyber defense capabilities.

Responsibilities

• Lead fusion of cyber threat, network, and endpoint data to detect advanced threats
• Conduct threat hunting and behavioral analysis across complex environments
• Develop and maintain threat models, use cases, and detection logic
• Produce actionable cyber threat intelligence reports and briefings
• Coordinate incident response with SOC, IR, and engineering teams
• Optimize SIEM and security analytics rules to reduce false positives
• Mentor junior analysts and contribute to analytic best practices
• Collaborate with stakeholders to prioritize and remediate risks
• Support continuous improvement of security monitoring capabilities
• Stay current on emerging threats, TTPs, and security technologies

Required Skills

• Cyber threat intelligence analysis
• Security operations and SOC workflows
• Threat hunting methodologies
• SIEM configuration and content development
• Incident response and containment
• Network security and packet analysis
• Endpoint detection and response (EDR) tools
• MITRE ATT&CK framework application
• Scripting/automation (e.g., Python, Power
• Shell)
• Cloud security monitoring and logging