CACI
Information Systems Security Officer (ISSO)
Aberdeen Proving Ground, MD, US
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hirly's read of this role
- Seniority
- Mid level
- Stated salary
- $82,700 – $173,900 per year
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 8 Oct 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
Job Title: Information Systems Security Officer (ISSO)
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: Secret
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
* * *
The Opportunity:
CACI is seeking a cleared Information Systems Security Officer (ISSO) to support Army C5ISR Mission Assurance. This senior-level position provides Cyber Security oversight, guidance, and support in accordance with the requirements set forth by the program office. The role involves conducting final reviews of submitted RMF packages from various centers attached to our organization. Upon review and concurrence, these centers will receive an Authorization to Operate (ATO). The ISSO will also provide recommendations to the centers to assist in their efforts in obtaining an ATO and support and coordinate workflow, activity, and documentation necessary to achieve successful RMF ATO for various DOD environments.
Responsibilities:
Provide senior-level RMF support in a leadership capacity.
Validate packages being submitted for authorizations (ATOs) in the eMASS package approval chain.
Verify submissions have met the threshold for approval, including:
CCIs
SCA-V results
POA&Ms
STIGs
Cyber Security Strategies and System Security Plans (SSPs)
Other RMF documentation
Identify, develop (either directly or in coordination with applicable experts), and incorporate common artifacts found in an RMF authorization package, such as system architecture and boundaries, hardware and software inventories, risk assessment reports, POA&Ms, data flows, PPSM accounting, and other necessary system, network, and application documentation.
Knowledge and experience identifying, assessing, and documenting compliance against applicable DoD IA security controls (technical, management, operational), Service (e.g., Army) regulations, etc., within the RMF package.
Familiarity with the use of vulnerability scanning and assessment tools (e.g., ACAS/Nessus) necessary to identify and document compliance.
Qualifications:
Required:
An active DoD Secret clearance with the ability to be read on for a TS or TSSCI.
3 years of ARMY RMF experience (SSP and A&A process approvals).
Familiar with NIST PUBs & TTPs.
Ability to identify, interpret, and evaluate major applications, infrastructure, enclaves, and Enterprise system environments based on proposed accreditation boundaries.
Ability to manage multiple projects simultaneously.
Strong verbal and written communications and interpersonal skills.
Security+ Required.
Desired:
CISSP Desired.
Ability to work in a team-focused, dynamic environment.
Must be flexible, independent, and self-motivated.
Must be punctual with regular and consistent attendance.
-
What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range :
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$82,700 - 173,900 USD
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.
Listed on hirly, a job board. hirly is not the employer: CACI is hiring for this role.
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