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Principal Security Specialist

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: Infojini Inc
Full Time position
Listed on 2026-09-09
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, IT Consultant
Salary/Wage Range or Industry Benchmark: 100000 - 120000 USD Yearly USD 100000.00 120000.00 YEAR
Job Description & How to Apply Below

Infojini Consulting is an equal opportunity employer and considers all qualified individuals for employment irrespective of their race, gender, age, color, sexual orientation.

Job Description

We are looking for a Principal Security Specialist in Arlington, VA for a 3+ year contract position.

Job Title: Principal Security Specialist

Location: Arlington, VA

Duration: 3+ years

  • Perform Security Assessments and Technical Security Reviews (TSR) for classified and unclassified systems;
  • Ensure adherence to the DHS Systems Engineering Lifecycle (SELC) and Change Management (CM) principles;
  • Develop and update testing procedures, Rules of Engagement (RoE) and security assessment scripts;
  • Review output from existing vulnerability assessment tools (Nessus, App Detective, etc.) to validate findings and identify false positives;
  • Identify security risks, threats and vulnerabilities;
  • Use NIST SP800-53 (Rev 3 and
    4) and DHS 4300A/B controls for testing the security controls within the C&A phase;
  • Review security controls using manual processes and automated tools;
  • Create, review, edit System Security Plans (SSP);
  • Work with ISSOs, developers, and System Owners on the assessment of systems under test;
  • Develop Security Assessment Reports (SAR);
Qualifications
  • Eligible for Secret, Top Secret or DHS/OBIM/NPPD Clearance
  • B.S. from an accredited institution in a Technical or Engineering related discipline. Relevant experience can be substituted in lieu of a degree.
  • Five (5) plus years of experience in IT Security with relevant security assessment planning and execution including use of automated assessment tools (Nessus, App Detective, Web Inspect, Core Impact, etc.)
  • In-depth knowledge of and experience in applying OMB, DHS 4300A/B, FIPS, NIST SP-800 series standards; related Federal IT security mandates and best practices; and agency specific policies and directives derived from such
  • Excellent written and verbal communication skills
  • Excellent interpersonal skills
Preferred Qualifications
  • Active Secret, Top Secret or DHS Clearance
  • DHS Agency or other Component experience
  • CISSP, CISA or GIAC Certification
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