TSSCI ISSO

Post Date

Jun 30, 2026

Location

Arlington,
Virginia

ZIP/Postal Code

22209
US
Sep 09, 2026 Insight Global

Job Type

Contract-to-perm

Category

Security Engineering

Req #

BAL-3a6f6571-fa4d-4034-bf48-d956b02376c4

Pay Rate

$54 - $68 (hourly estimate)

Job Description

An employer is looking for a TSSCI ISSO to sit in Arlington, VA. The Information System Security Officer (ISSO) is responsible for establishing and enforcing security procedures in alignment with customer objectives and regulations. This role manages Assessment & Authorization (A&A) activities, including development and maintenance of Body of Evidence documentation, System Security Plans (SSPs), and eMASS submissions to support system authorizations and continuous monitoring. The ISSO conducts security audits, ACAS scan and STIG (CKL) reviews, and ongoing security assessments to validate controls, identify vulnerabilities, and implement corrective actions across the system lifecycle. The role also includes maintaining ISSO team processes, supporting team efficiency efforts, and collaborating closely with internal stakeholders, customers, and the ISSM to ensure systems are operated, maintained, and disposed of in compliance with established policies.

Compensation:
$60/hr to $70/hr.

Exact compensation may vary based on several factors, including skills, experience, and education.

Benefit packages for this role will start on the 31st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Required Skills & Experience

Active TS/SCI Clearance with ability to obtain a CI Polygraph
DoD 8570 IAT Level II Certification (Security+ CE, CCNA Security, etc.)
Bachelor's degree with 4+ years of relevant cybersecurity experience (or equivalent experience in lieu of degree)
2+ years of experience supporting RMF, eMASS, and STIG compliance activities
Experience supporting the accreditation, authorization, or continuous monitoring of classified (Secret or TS/SCI) information systems
Experience creating and maintaining security documentation including SSPs, POA&Ms, security assessment artifacts, and eMASS submissions
Experience conducting vulnerability assessments and remediation efforts using tools such as ACAS/Nessus

Nice to Have Skills & Experience

Experience successfully supporting or leading the accreditation and ATO process for Top Secret or TS/SCI systems
Experience working in JWICS, SIPRNet, or other classified environments
Familiarity with NIST 800-53 security controls and DoD RMF requirements
Experience serving as an ISSO in a DoD or Intelligence Community environment
Knowledge of Xacta, HBSS, SCAP, or additional cybersecurity compliance tools
Experience coordinating directly with Authorizing Officials (AO), Security Control Assessors (SCA), and ISSMs during authorization efforts
CISSP, CAP, CASP+, or other advanced cybersecurity certifications preferred

Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.