Incident Manager II

ARSIEM is looking for a Cyber Case Manager. This position will support one of our Government clients in Arlington, VA. This position requires an Active TS/SCI clearance and the ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability.

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, open-source intelligence (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

Requirements

Bachelor's degree in a technical discipline from an accredited college or university in Computer Science, Cybersecurity, Computer Engineering, or a 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; Must be able to work collaboratively across physical locations; Active TS/SCI clearance; Ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability

Nice to have

Prior experience in federal government cybersecurity roles (CISA, FBI, NSA, DoD); Understanding of the CISA NCISS National Cyber Incident Scoring System to prioritize and triage incidents; Knowledge of general attack stages (e.g., foot printing and scanning, enumeration, gaining access, escalation of privileges, maintaining access, network exploitation, covering tracks); Demonstrated experience recognizing and categorizing types of vulnerabilities and associated attacks; Knowledge of Computer Network Defense policies, procedures, and regulations; Knowledge of different operational threat environments (first, second, and third generation threats); Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, PL/SQL and injections, race conditions, covert channel, replay, return-oriented attacks, malicious code); Experience with SIEM platforms, threat intelligence platforms (TIP), and ticketing systems; Knowledge of critical infrastructure sectors and associated cyber risks; Familiarity with DHS/CISA products and services; Security+, CySA+, GCIH, GCIA, or similar certifications

Benefits

Referral bonus of $3,500 for referring new candidates who are successfully placed on a project within 12 months of referral, paid after the referred employee reaches 6 months of employment