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Open nowPosted today

Information Systems Security Officer

CACi1,360 open roles

Where
Aurora CO US
Work mode
On site
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Your applicationOpen nowInformation Systems Security OfficerCACi · Aurora CO US

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The clock on this job

Early applications get read.

8.1% of postings close within 7 days. Measured by our own scanner across the market. CACi postings stay open a median of 3 days.

Share of postings closed within
  1. 1.8%1 day
  2. 3.5%3 days
  3. 8.1%7 days
  4. 15.1%14 days
  5. 33.9%30 days
This job: posted today

CACi median: 3 days open

The posting

Job Title: Information Systems Security Officer

Job Category: Information Technology

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: Continental US

Anticipated Posting End: 1/4/2027

The Opportunity:

The Information Systems Security Officer (ISSO) will assist the Information System Security Manager (ISSM) with authorization, security-control implementation, continuous monitoring, vulnerability management, and maintenance of the cybersecurity posture for assigned authorization boundaries. You will collaborate with software developers, systems engineers, and government stakeholders to navigate the Risk Management Framework (RMF) lifecycle and maintain the Authority to Operate (ATO) for complex cloud environments.

Responsibilities:

• RMF & ATO Management: Build and update standard RMF packages, including the Systems Security Plan (SSP), Plan of Actions and Milestones (POAMs), hardware and software inventories, and network topology diagrams. • Security Engineering & Cloud Oversight: Drive "security by design" by reviewing technical change requests, evaluating new technologies, and providing security oversight for cloud-based platforms (AWS/Azure). • Vulnerability & Risk Mitigation: Perform vulnerability/risk assessment analysis to support continuous monitoring and the certification and accreditation process. • Technical Compliance & Monitoring: Establish continuous monitoring protocols to track security posture, enforce cybersecurity policies, and brief complex technical risks to senior stakeholders.

Qualifications: Education and Experience: • 3-6 years of experience in Cybersecurity, Information Assurance, or related background.

Clearance & Certifications: • Active TS/SCI w/Poly. • DoD 8140 IAT Level II Compliance (e.g., Security+, CCNA Security, or SSCP).

Risk Management & Compliance: • RMF Lifecycle: Support RMF, IATT, ATO, and continuous-monitoring activities for cloud environments. • Control Implementation: Knowledge of NIST 800-53 and 800-171 control sets, including managing control inheritance and applying overlays. • Governance & Documentation: Develop and maintain SSPs, SCTMs, POA&Ms, SOPs, contingency plans, configuration documentation, and assessment evidence.

Engineering & Operations: • Technical Oversight: Experience reviewing system changes for security impact and collaborating with dev teams to integrate new technologies securely. • Continuous Monitoring: Proficiency in conducting security inspections, audits, and vulnerability analysis to track patch effectiveness and system health.

Desired:

• Experience working with governance risk and compliance tools (i.e. Xacta, SNOW, etc.). • Experience utilizing common industry tools (i.e. Nessus, Splunk, Anchore, etc.). • Experience with Cloud security. Analyzing evidence from CloudTrail, Config, Security Hub, Guard Duty, Cloud Watch, Systems Manager, Inspector, and AWS Backup.

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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.

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