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CACI International IncCI

Information Systems Security Officer (ISSO)

CACI, founded in 1962, is a leading provider of technology and expertise for national security, committed to innovation and excellence.

CACI International Inc

Employee count: 5000+

Salary: 75k-158k USD

United States only

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Job Title: Information Systems Security Officer (ISSO)Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *

Join Our Team as a Security Authorization Expert!

Step into a role where you can make a significant impact on the security posture of Department of Defense (DoD) information systems.

As a Security Authorization Expert, you will:

  • Own the day-to-day security authorization posture of assigned DoD information systems.

  • Work within a well-resourced team with dedicated engineering, operations, and architecture support.

  • Develop expertise in modern RMF tooling including eMASS and eMASSer automation.

  • Directly support mission continuity by managing ATO packages and continuous monitoring programs.

  • Grow into a senior GRC role with clear advancement pathways.

Responsibilities:

  • Develop, maintain, and update System Security Plans (SSPs) for assigned systems.

  • Manage Plans of Action & Milestones (POA&Ms) from identification through remediation and closure.

  • Compile and submit Authorization to Operate (ATO) packages.

  • Conduct continuous monitoring activities per established strategy.

  • Utilize eMASS for GRC management and RMF workflow tracking.

  • Coordinate with Information System Security Engineers (ISSEs) and Security Operations (SecOps) to validate control implementations.

  • Develop Security Assessment Plans (SAPs) and support Security Assessment Report (SAR) coordination.

  • Draft supply chain risk management plans.

  • Support the Cybersecurity Architect with RMF strategic planning.

Qualifications:

Required:

  • Active Secret or Top Secret clearance.

  • 3–5 years of RMF/ATO experience within DoD or federal environments.

  • Hands-on experience with eMASS.

  • Working knowledge of NIST SP 800-53r5 and DoD RMF processes.

  • Demonstrated ability to independently author SSPs and manage POA&Ms.

Required Certification:

  • DoD 8140.03M DCWF Basic tier certification — CEH.

Education:

  • DoD 8140 Interim Education Options.

Desired Certification:

  • DoD 8140.03M DCWF Intermediate tier certification — one of: CEH(P), RCCE Level 1, Cloud+, CPTE, FITSP-A, GCED, GCIH, GCSA, GICSP, GSEC, PenTest+, or Security+.

Desired Education:

  • Bachelor’s degree in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering.

Desired:

  • Experience with eMASSer or similar RMF automation tooling.

  • Exposure to cloud-hosted or hybrid system authorization boundaries.

  • Familiarity with the DoD RMF Knowledge Service.

Join Us!
If you are passionate about cybersecurity and thrive in a collaborative, mission-driven environment, we want you on our team. Apply now and be part of a forward-thinking organization where your skills and expertise will be valued and nurtured.

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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.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$75,200-$158,100

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.

About the job

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Job type

Full Time

Experience level

Salary

Salary: 75k-158k USD

Experience

3 years minimum

Location requirements

Hiring timezones

United States +/- 0 hours

About CACI International Inc

Learn more about CACI International Inc and their company culture.

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CACI is a $7.7 billion company that specializes in delivering distinctive expertise and innovative technology to U.S. government customers, particularly in support of national security missions. Founded in 1962 by Herb Karr and Harry Markowitz, CACI was established during a pivotal time in the computer industry, quickly evolving into a leader in providing IT services and consulting. Over the years, CACI has grown significantly, employing around 24,000 talented individuals who are committed to ethics, integrity, and excellence in all endeavors.

Our offerings extend beyond traditional IT solutions to include advanced technology for defense, cybersecurity, electronic warfare, and intelligence operations. We pride ourselves on our agile methodologies, enhancing performance through innovative products and solutions that address the most pressing challenges faced by our customers. CACI's culture is founded on two pillars: character and innovation, which drive our mission to meet the nation’s highest priorities. Recognized as one of America’s Most Trusted Companies by Forbes and a top workplace, CACI’s commitment to excellence continues to be reflected in our achievements, further solidifying our role at the forefront of the national security sector.

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