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Senior Counterintelligence Investigator

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: ManTech
Full Time position
Listed on 2026-02-16
Job specializations:
  • Government
    Cybersecurity
  • Security
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Overview

MANTECH seeks a motivated, career and customer-oriented Senior
Counterintelligence (CI)
Inve
stigator to join our team in Chantilly, VA .

Responsibilities
  • Conducting comprehensive counterintelligence inquiries according to legal status, IC and DoD policies and procedures.
  • Identifying, evaluating, performing, and reporting on threats to agency equities using extensive knowledge of agency, IC and DoD policies and directives.
  • Safeguarding allcase files andwritingdetailed reports and referrals to appropriate government agencies.
  • Providing investigative support for espionage damage assessments.
  • Conducting CI assessments and referrals of personnel for IC indicators and for CI incidents as appropriate, to include FBI 811 referrals.

    These duties include a comprehensive review of personnel records tovalidateor invalidate assertion of CI indicators; assessing and documenting CI vulnerabilities associated with agency personnel;identifying

    CI concerns andpossiblemitigationswithin SEAD-4 National Security Adjudicative Guidelines; and conducing CI case support for federal investigative agencies.
  • Managing and preparing detailed reports, based on existing investigative documentation, existing electronic databases of foreign intelligence contact information, and other CI inquiries and assessments.
  • Routinely briefing and providing investigative leads to theGTMas necessary.
  • Ability to travel worldwide.
Minimum Qualifications
  • Bachelor’sdegreeand
    10+years of relevant experience with Intelligence and/or Counterintelligence.
  • In lieu of a Bachelor’s:

    Associates’degree and
    15+yearsofrelevant experience with

    Intelligence and/or Counterintelligence.
  • Successful completion of a state or federal/military law enforcement academy or counterintelligence academy/formal training curriculum.
Desired Qualifications
  • Bachelor’s degree inforeign area studies, International Relations, security studies, History, Behavioral Science, Criminal Justice, Space Systems, or Political Science.
  • Knowledge,familiarity, and/or training in adjudicative guidelines outlined in ICD 704.
Clearance Requirements
  • Musthave a current/active TS/SCI w/Polygraph.
Physical Requirements
  • Must be able to remain in a stationary position 50%
  • Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
  • Must be able to exchangeaccurateinformation in these situations.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at  and provide your name and contact information.

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Position Requirements
10+ Years work experience
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