Incident Manager III

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. Weprovide support to multiple agencies across the United States Government. ARSIEMhas an experienced workforce of qualified professionals committed to providing the best possible support.

As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients.

That means a career packed with opportunities to grow and the ability to have an impact on every client you work with.

ARSIEM is seeking a Senior JCDC Cyber Triage Analyst to serve as a technical subject-matter expert within the JCDC triage function, handling complex threat-intelligence assessments, mentoring junior analysts, and serving as a technical liaison to interagency partners. This role combines advanced technical analysis capabilities with strategic thinking and partnership coordination, ensuring high-quality threat assessments inform national cyber defense priorities. This position will support one of our Government clients in Arlington, VA.

• Conduct advanced triage and analysis of complex, high-severity cyber threat intelligence and IOC packages
• Serve as technical escalation point for challenging or ambiguous threat assessments requiring deep expertise
• Perform sophisticated IOC enrichment using classified and unclassified intelligence sources
• Coordinate directly with FBI, NSA, USCYBERCOM, and other interagency partners on joint threat assessments
• Provide technical mentorship and training to mid-level and junior triage analysts
• Develop and refine analytical tradecraft, triage playbooks, and decision matrices
• Lead special projects to enhance triage processes, automation, and threat detection capabilities
• Author detailed threat assessments and intelligence briefs for JCDC leadership and partner organizations
• Represent the triage team in interagency working groups and information-sharing forums
• Identify patterns across multiple threat reports to detect emerging campaigns or threat actor activity
• Conduct quality review of analyst products and provide constructive feedback
• Support after-hours on-call rotation for critical incidents requiring senior-level triage assessment
• Contribute to strategic planning for JCDC operational capability development
• Interface with critical infrastructure sector partners to understand threat concerns and provide tailored analysis

• Bachelor’s degree in a technical discipline from an accredited college or university in Computer Science, Cybersecurity, Computer Engineering, or related discipline; or HS Diploma & 7+ years of directly relevant technical experience. Master’s degree is preferred.
• 5-7 years of progressive experience in threat intelligence, SOC operations, or cyber incident response
• Demonstrated expertise in malware analysis, threat actor attribution, and cyber campaign analysis
• Advanced proficiency with threat intelligence platforms, SIEM tools, and analytical frameworks
• Deep knowledge of MITRE ATT&CK framework and intelligence-driven cyber defense concepts
• Proven track record coordinating with federal agencies and managing complex stakeholder relationships
• Strong understanding of critical infrastructure interdependencies and sector-specific threats
• Exceptional analytical writing skills with ability to communicate complex technical findings to diverse audiences
• Experience briefing technical and non-technical audiences, including senior leadership
• Must be able to work collaboratively across physical locations

• Prior experience in federal government cybersecurity roles (CISA, FBI, NSA, DoD)
• Experience with the CISA NCISS National Cyber Incident Scoring System…