Cyber Incident Triage Lead II

ARSIEM Corporation; Arlington (VA); On-site; USD 90,000 - 140,000; Full time

Benefits offered by this job

Referral program

Equal Opportunity Employer

Job summary

ARSIEM Corporation in Arlington is seeking a cybersecurity threat analyst to triage and assess threat tickets, analyze indicators, and enrich IOCs using government resources. You will prepare actionable triage reports and coordinate with interagency partners to determine threat severity and potential impact on critical infrastructure.

The role requires 2–4 years in threat intelligence or SOC operations, a technical degree or equivalent experience, and the ability to work across multiple physical

Qualifications

• Bachelor’s degree in Computer Science, Cybersecurity, Computer Engineering, or related discipline; or a high school diploma and 4+ years of directly relevant technical experience.
• 2-4 years of progressive experience in threat intelligence, SOC operations, or cyber incident response.
• Perform initial triage and assessment of incoming cyber threat tickets, incident reports, and IOC submissions.
• Analyze technical data including IP addresses, domain names, file hashes, network traffic patterns, and malware artifacts.
• Determine threat severity, credibility, and potential impact to critical infrastructure sectors.
• Enrich IOCs using threat intelligence platforms, OSINT, and government-exclusive resources.
• Prepare concise triage reports with actionable recommendations for escalation or further analysis.
• Route tickets to appropriate JCDC teams, CISA divisions, or interagency partners based on assessment findings.
• Coordinate with sector-specific analysts and interagency liaisons to gather additional context.
• Maintain accurate documentation in ticketing systems and knowledge management platforms.
• Participate in shift handoffs and contribute to daily operational briefings.
• Support development of triage playbooks and standard operating procedures.
• Monitor emerging threat campaigns and trending adversary activity.
• Provide feedback to submitters and partner organizations on ticket status and outcomes.
• Must be able to work collaboratively across physical locations.

Responsibilities

• Perform initial triage and assessment of incoming cyber threat tickets, incident reports, and IOC submissions.
• Analyze technical data including IP addresses, domain names, file hashes, network traffic patterns, and malware artifacts.
• Determine threat severity, credibility, and potential impact to critical infrastructure sectors.
• Enrich IOCs using threat intelligence platforms, OSINT, and government-exclusive resources.
• Prepare concise triage reports with actionable recommendations for escalation or further analysis.
• Route tickets to appropriate JCDC teams, CISA divisions, or interagency partners based on assessment findings.
• Coordinate with sector-specific analysts and interagency liaisons to gather additional context.
• Maintain accurate documentation in ticketing systems and knowledge management platforms.
• Participate in shift handoffs and contribute to daily operational briefings.
• Support development of triage playbooks and standard operating procedures.
• Monitor emerging threat campaigns and trending adversary activity.
• Provide feedback to submitters and partner organizations on ticket status and outcomes.
• Must be able to work collaboratively across physical locations.

Education

Bachelor’s degree in Computer Science, Cybersecurity, Computer Engineering, or related discipline

4+ years of directly relevant technical experience (high school diploma path)

2-4 years in threat intelligence, SOC operations, or cyber incident response

Initial triage and assessment of cyber threat tickets, incidents, IOC submissions

Analysis of IPs, domains, file hashes, network traffic, malware artifacts

Enrich IOCs using threat intel platforms, OSINT, and government resources

Prepare triage reports with actionable escalation recommendations

Route tickets to JCDC teams, CISA divisions, or interagency partners

Coordinate with sector analysts and interagency liaisons

Maintain documentation in ticketing systems and knowledge bases

Participate in shift handoffs and daily briefings

Develop triage playbooks and SOPs

Monitor emerging threat campaigns and adversary activity

Provide feedback to submitters and partner organizations on ticket status

Must be able to work collaboratively across physical locations

Tools

SIEM platforms

Threat intelligence platforms

Ticketing systems

Job description

ARSIEM Corporation in Arlington is seeking a cybersecurity threat analyst to triage and assess threat tickets, analyze indicators, and enrich IOCs using government resources. You will prepare actionable triage reports and coordinate with interagency partners to determine threat severity and potential impact on critical infrastructure.

The role requires 2–4 years in threat intelligence or SOC operations, a technical degree or equivalent experience, and the ability to work across multiple physical