Incident Manager II

Job Description

About ARSIEM Corporation

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has 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 looking for a Cyber Case Manager. This position will support one of our Government clients in Arlington, VA.

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

Minimum Qualifications

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

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

Must be able to work collaboratively across physical locations

Preferred Qualifications

Prior experience in federal government cybersecurity roles (CISA, FBI, NSA, DoD)

Understanding the CISA NCISS National Cyber Incident Scoring System to be able 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, etc.)

Demonstrated experience with recognizing and categorizing types of vulnerabilities and associated attacks

Knowledge of Computer Network Defense policies, procedures, and regulations

Knowledge of different operational threat environments (e.g., first generation [script kiddies], second generation [non-nation-state sponsored], and third generation [nation-state sponsored])

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, and 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

Clearance Requirement
: This position requires an Active TS/SCI clearance and the ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability.

Candidate Referral
: Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects. The bonus for this position is $3,500, and the referrer is eligible to receive the sum for any applicant we place within 12 months of referral. The bonus is paid after the referred employee reaches 6 months of employment.
ARSIEM is proud to be an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class.