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Information System Security Officer

Job in Austin, Travis County, Texas, 78716, USA
Listing for: CACI International
Full Time position
Listed on 2026-03-03
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security, Systems Engineer, IT Consultant
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Job Title:

Information System Security Officer
Job Category:
Information Technology
Time Type:
Full time
Minimum Clearance Required to Start: TS/SCI
Employee Type:
Regular
Percentage of

Travel Required:

Up to 10%
Type of Travel:
Continental US

The Opportunity

CACI is seeking a Cyber Security professional with experience fulfilling customer requirements for system security posture assessment, authorization process execution, and continuous monitoring to work as part of a team supporting CACI products. The successful candidate will work with CACI team members to assess information security controls on new and existing systems, work with system owners to resolve and mitigate information security findings, and help maintain security posture of systems and networks.

Conduct Risk Management Framework (RMF) tasks for obtaining Authorization to Operate (ATO) for CACI systems/networks.

Responsibilities
  • Collaborate with system integrators and administrators to harden information systems to the required acceptable level.
  • Provide full Assessment & Authorization (A&A) support and technical security guidance in all phases of the system authorization process and/or Risk Management Framework (RMF).
  • Conduct security review of information system security plans (SSP) for networks and information systems.
  • Conduct research to identify security vulnerabilities and provide guidance to mitigate risks to information systems.
  • Provide corrective actions into a coherent information security strategy.
  • Review and analyze systems/networks architecture diagrams.
  • Convey knowledge and security‑focused comprehensive solutions to technically complex systems and challenges encountered while implementing security.
Qualifications

Required:

  • Bachelor’s degree in information technology and/or information systems related discipline desired (will consider experience in lieu of degree) and 5 or more years of experience.
  • Must have an active Top Secret/SCI clearance to start.
  • Strong background in Information Technology processes and/or systems administration.
  • 5+ years recent experience generating and implementing System Security Accreditation/ICD 503 packages for DoD and/or IC Customers.
  • 5+ years recent experience establishing security processes, practices and principles for TOP SECRET communication network connected systems.
  • 5+ years recent experience with NIST SP 800-53, CNSSI 1253, and FISMA requirements.
  • RMF working knowledge.
  • Windows and Linux working knowledge.
  • Understanding of networking concepts.
  • 8140.03 compliant:
    Security+ or equivalent.
  • Ability to work independently with minimal supervision as well as part of a team.
  • US citizenship is required.

Desired:

  • Ability to work in an agile, fast‑paced environment.
  • Excellent verbal and written communication for technical and security related topics.
  • Experience with XACTA and/or eMASS.
  • Use of network security vulnerability assessment tools including ACAS, NESSUS, SCAP, and HBSS.
  • Knowledge of DoD/IC Information Assurance Vulnerability Management (IAVM) and configuration management processes.
  • Desired certifications:
    Certified Information Systems Security Professional (CISSP), Certified Governance Risk Compliance (CGRC), Linux OS certifications.
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…

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