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HomeCompaniesArsiemIncident Response Expert III

Incident Response Expert III

Arsiem · Arlington, VA · On Site · Active · Lever

Job facts

FieldValue
CompanyArsiem
TitleIncident Response Expert III
Normalized title-
Department / teamIncident Response Expert / 0008-0003
LocationArlington, VA, United States
Work modelOn Site
Employment typeFull Time
Salary-
Statusactive
ATS providerLever
Posted / first seen2026-04-03 / 2026-05-29
Changed / last seen2026-05-29 / 2026-06-06

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City jobsActive postings in Arlington.Open
Department jobsActive postings in Incident Response Expert.Open
Work model jobsActive On Site postings.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanyArsiem
Source017268e1-454e-4c3f-b641-8da3ae7efde3
ATS providerLever

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 Incident Manager to support on-site incident response to civilian Government agencies and critical asset owners who experience cyber attacks, providing immediate investigation and resolution. This position will support one of our Government clients in Arlington, VA. 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. Responsibilities Serves as hunt and incident response subject matter expert (SME), applying in-depth knowledge on threat actor (TA) tools, techniques, and procedures (TTPs) Distills analytic findings into executive summaries and in-depth technical reports Provide expert support, analysis, and research with only broad direction into exceptionally complex problems and processes relating to the subject matter as it relates to hunt and incident response activities Serves as technical expert on high-level incident response teams providing technical direction, interpretation, and alternatives Exercises considerable latitude in determining technical objectives of an assignment or task at hand Independently develops technical solutions to complex problems that require the regular use of ingenuity and creativity Analyzes incident data and victim environments to recommend targeted mitigations Advise technical personnel on countermeasure implementation and customization Supports internal stakeholders on containment and eradication missions Documents analysis in a standardized knowledgebase for sharing and publication Assists in maintaining branch process and procedure documentation Guides the completion of hunt and incident response activities Minimum Qualifications BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 7+ years of technical experience in the area of expertise. 5+ years of directly relevant experience in the area of expertise Must be able to travel domestically on short notice Strong understanding of network architecture/security Experience performing cyber incident response Ability to think independently Demonstrates superior written and oral communication skills Must be able to work collaboratively across physical locations Skilled in identifying different classes of attacks and attack stages Understanding of system and application security threats and vulnerabilities Understanding of proactive analysis of systems and networks, to include creating trust levels of critical resources Proficiency with common operating systems (e,g, Linux/Unix, Windows) Preferred Qualifications Experience leading and mentoring technical teams 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, returnoriented attacks, and malicious code) Network and System administration experience Strong understanding of adversarial tactics/techniques/procedures (TTPs) Experience with Identity and Access Management (IAM) tools Ability to review and analyze Enterprise Architecture (EA) from a security perspective Understanding of cyber defense-in-depth principles Hands-on skill in host/network intrusion detection Ability to perform event correlation Experience with malicious activity analysis Ability to collaborate with stakeholders at multiple levels within an organization Desired Certifications: One or more DoD 8140.01 IAT Level II, IASAE II, CSSP Analyst DoD 8140.01 GCIA, GCIH, CSSP Analyst/CSSP Incident Responder DoD 8140.01 CEH, CSSP Analyst SANS GIAC GNFA preferred SANS GRID, GICSP, or GCIP a plus

Full job record

Job IDd0ed4d33eff37fd418ba7aea5fcf8bcd4d068928
Org ID2db0e30f-960e-49a1-a9b4-49ffbe613325
Source ID017268e1-454e-4c3f-b641-8da3ae7efde3
Board ID017268e1-454e-4c3f-b641-8da3ae7efde3
Providerlever
Provider Job Key059c5bf4-db84-4ec4-ae95-2045b94f0f2c
TitleIncident Response Expert III
Normalized Title
Statusactive
Activeyes
Location TextArlington, VA
DepartmentIncident Response Expert
Team0008-0003
Employment TypeFull-time
Workplace Typeon_site
Remote Policy
CountryUnited States
RegionVA
CityArlington
Salary Raw
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://jobs.lever.co/arsiem/059c5bf4-db84-4ec4-ae95-2045b94f0f2c
Apply URLhttps://jobs.lever.co/arsiem/059c5bf4-db84-4ec4-ae95-2045b94f0f2c/apply
First Seen At2026-05-29 07:08:33Z
Last Seen At2026-06-06 18:44:29Z
Last Checked At2026-06-06 18:44:29Z
Last Changed At2026-05-29 07:08:33Z
Inactive At
Source Posted At2026-04-03 02:48:14Z
Source Updated At
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=lever/board=arsiem/date=2026-06-06/2026-06-06T18-44-28-898Z-16c569b4d4a4fa41865d8c46c03515e275f0ffe19eeef81c009aedbde882011f.json
Event Fields
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Parsed Structured
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Extensions
{}
Native Structured
{
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    {
      "text": "Responsibilities",
      "content": "\n<li>Serves as hunt and incident response subject matter expert (SME), applying in-depth knowledge on threat actor (TA) tools, techniques, and procedures (TTPs)</li>\n<li>Distills analytic findings into executive summaries and in-depth technical reports</li>\n<li>Provide expert support, analysis, and research with only broad direction into exceptionally complex problems and processes relating to the subject matter as it relates to hunt and incident response activities</li>\n<li>Serves as technical expert on high-level incident response teams providing technical direction, interpretation, and alternatives</li>\n<li>Exercises considerable latitude in determining technical objectives of an assignment or task at hand</li>\n<li>Independently develops technical solutions to complex problems that require the regular use of ingenuity and creativity</li>\n<li>Analyzes incident data and victim environments to recommend targeted mitigations</li>\n<li>Advise technical personnel on countermeasure implementation and customization</li>\n<li>Supports internal stakeholders on containment and eradication missions</li>\n<li>Documents analysis in a standardized knowledgebase for sharing and publication</li>\n<li>Assists in maintaining branch process and procedure documentation</li>\n<li>Guides the completion of hunt and incident response activities</li>\n"
    },
    {
      "text": "Minimum Qualifications",
      "content": "\n<li>BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma &amp; 7+ years of technical experience in the area of expertise.</li>\n<li>5+ years of directly relevant experience in the area of expertise</li>\n<li>Must be able to travel domestically on short notice</li>\n<li>Strong understanding of network architecture/security</li>\n<li>Experience performing cyber incident response</li>\n<li>Ability to think independently</li>\n<li>Demonstrates superior written and oral communication skills</li>\n<li>Must be able to work collaboratively across physical locations</li>\n<li>Skilled in identifying different classes of attacks and attack stages</li>\n<li>Understanding of system and application security threats and vulnerabilities</li>\n<li>Understanding of proactive analysis of systems and networks, to include creating trust levels of critical resources</li>\n<li>Proficiency with common operating systems (e,g, Linux/Unix, Windows)</li>\n"
    },
    {
      "text": "Preferred Qualifications",
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    }
  ],
  "country": "US",
  "createdAt": 1775184494595,
  "updatedAt": null,
  "categories": {
    "team": "0008-0003",
    "location": "Arlington, VA",
    "commitment": "Full-time",
    "department": "Incident Response Expert",
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