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MSCCN10d ago
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Information System Security Officer (ISSO) - Chantilly VA

United StatesUnited States·Chantillymid
OtherInformation System Security Officer
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Quick Summary

Key Responsibilities

The candidate will be responsible for security architecture and systems engineering supporting ICAM projects. The ISSO will provide guidance to the team to support system accreditation (IATT and ATO).

Technical Tools
OtherInformation System Security Officer

ATTENTION MILITARY AFFILIATED JOB SEEKERS - Our organization works with partner companies to source qualified talent for their open roles. The following position is available to Veterans, Transitioning Military, National Guard and Reserve Members, Military Spouses, Wounded Warriors, and their Caregivers. If you have the required skill set, education requirements, and experience, please click the submit button and follow the next steps. Unless specifically stated otherwise, this role is "On-Site"

Job Title: Information System Security Officer (ISSO)
Job Category: Security
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Local
* * *
The Opportunity:


CACI as a Prime Contractor on MWIII Bridge.  All positions in the Hanover, MD area. MWIII Bridge develops and supports Identity, Credential and Access Management (ICAM) capabilities for the enterprise and stand-alone deployment throughout the IC. Tasks include program management, mission support, software integration, software development, system engineering, migration, testing, documentation development, network and system monitoring, configuration control and release management.

Responsibilities:


The candidate will be responsible for security architecture and systems engineering supporting ICAM projects. The ISSO will provide guidance to the team to support system accreditation (IATT and ATO). 

ISSO tasks include:

Prepare system security plan (SSP) and provide recommendations to assist in obtaining ATOs.

Identify, develop (either directly, or in coordination with applicable experts), review and incorporate common artifacts found in an RMF accreditation package such as: system architecture and boundaries, hardware and software lists, risk assessment reports, POA&Ms, data flows, and other necessary system, network, and application documentation.         

Work with ISSM and DAOs to ensure systems obtain and maintain accreditation.           

Verify package submissions have met the threshold for approval such as: C&A Package for System Reauthorization, SAR Findings, CTO’s, POA&Ms, and System Security Plans (SSPs).          

Apply continuous monitoring techniques to evaluate the systems security posture.         

Create tasking for developers and system administrators as changes and patching are required.       

Oversee the implementation of software patches to maintain the security posture of the organization.           

Responsible for implementing and enforcing information systems security policies, standards, and methodologies.      

Familiarity with the use of vulnerability scanning and assessment tools (e.g., ACAS/Nessus) necessary to identify and document compliance.           

Review Audit Logs on a weekly basis.    

Perform Data transfers on a weekly basis driving from CACI Hanover Office to Ft. Meade.         

Maintain and report assessment and authorization statuses and issues in accordance with organizational guidance.          

Understand the PRIVAC process. Support personnel with new PRIVAC requests and extensions.

Responsibilities

~1 min read
Qualifications:
Required:

TS/SCI clearance with polygraph

This position has been designated as requiring IAM Level 1 CWIP certification and requires one of the following baseline certifications to qualify           

CAP, CND, Cloud+, GSLC, Security+CE, HCISPP, CASP+CE, CISM, CISSP (or Associate), CCISO           

Bachelor's degree in a technical discipline from an accredited college or university        

Ten (10) years relevant work experience. Four (4) years of additional experience may be substituted for a bachelor's degree.           

At least four (4) years of this experience must be as an ISSO on programs and contracts of similar scope, type, and complexity.          

Desired:

Experience with:

The ICD 503/NIST 800-53 certification and accreditation process        

The Risk Management Framework        

Developing and maintaining SSPs         

IAVA review and handling           

Interpreting Security Scan results         

Interfacing with System Administrators and Software Engineers           

Task tracking systems (e.g. Jira, Redmine, ServiceNow)         

​Understands:           

Public Key Infrastructure-based authentication        

A variety of security policies, especially within the IC       

Fundamentals of technical security risk assessment      

Understands how to perform analysis of alternatives          

Able to clearly communicate ideas and status updates to management and other stakeholders

The proposed salary range for this position is:

$103,800 - $218,100

Location & Eligibility

Where is the job
Chantilly, United States
On-site at the office
Who can apply
US

Listing Details

Posted
September 17, 2026
First seen
September 26, 2026
Last seen
September 27, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
34%
Scored at
September 27, 2026

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MSCCNInformation System Security Officer (ISSO) - Chantilly VA