Incident Manager II

ARSIEM • Arlington, VA

33d • Onsite

About The Position

ARSIEM Corporation is seeking an Incident Manager II to support a government client in Arlington, Virginia. The posting describes the work as a JCDC Cyber Triage Analyst role and characterizes it as a frontline cyber defense position, not a developmental position. The analyst performs initial analysis and triage of cyber threat reports, indicators of compromise (IOCs), and incident notifications submitted to the JCDC, working similarly to a Tier 1/2 SOC analyst with enhanced threat intelligence responsibilities. Analysts are expected to independently research cyber activity, assess available information, develop defensible conclusions, identify information gaps, recommend follow-on actions, and coordinate with government and private-sector partners.

The position requires an active TS/SCI clearance and the ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability. The company describes its work as supporting government clients and agencies across the United States and highlights opportunities to grow and make an impact for clients.

Requirements

• Bachelor’s degree in a technical discipline from an accredited college or university in Computer Science, Cybersecurity, Computer Engineering, or a related discipline; alternatively, 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.
• Ability 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 Haves

• Prior experience in federal government cybersecurity roles, such as CISA, FBI, NSA, or DoD.
• Understanding of the CISA NCISS National Cyber Incident Scoring System to prioritize and triage incidents.
• Knowledge of general attack stages, such as footprinting and scanning, enumeration, gaining access, privilege escalation, maintaining access, network exploitation, and 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, including first-generation (script kiddies), second-generation (non-state-sponsored), and third-generation (nation-state-sponsored) threats.
• Knowledge of system and application security threats and vulnerabilities, including 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.

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.

Benefits

• Referral bonus of $3,500 for a qualifying referred candidate who is successfully placed; the referrer may receive the bonus for any applicant placed within 12 months of referral, paid after the referred employee reaches six months of employment.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level