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Information Systems Security Officer; ISSO​/Cyber Security Analyst

Job in Alexandria, Fairfax County, Virginia, 22350, USA
Listing for: CACI
Full Time position
Listed on 2026-11-05
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, Network Security, IT Consultant
Salary/Wage Range or Industry Benchmark: 90000 - 130000 USD Yearly USD 90000.00 130000.00 YEAR
Job Description & How to Apply Below
Position: Information Systems Security Officer (ISSO)/Cyber Security Analyst

Job Title:

Information Systems Security Officer (ISSO)/Cyber Security Analyst

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:
Local

The Opportunity:

CACI is seeking a cyber security professional to join our team supporting a Department of Defense (DoD) client. In this role, you will support the customer's mission and cyber security posture for a portfolio of systems (NIPR/SIPR), sponsored by a variety of DoD customers.

Responsibilities:
  • Manage extensive security evaluations of information systems and networks and the remediation of security control weaknesses, prepares evaluation reports, and presents recommendations.
  • Conduct trade-off analyses of products for clients to determine optimal information security solutions.
  • Maintain a high level of familiarity with the major Federal Government Information Security policy guidance and directives.
  • Provide ongoing security training to the client's on-site personnel
  • Ensure the physical environment of the computers and their terminals are properly secured and meets all Operation Security (OPSEC) requirements
  • Conduct structured walk-throughs based on Continuity of Operations Plans to ensure integrity of the network's ability to reconstitute normal system functions including reinstallation of applications after a catastrophic failure
  • Work collaboratively with the ISSM, stakeholders, and the team to support cybersecurity efforts (NIPR/SIPR)
  • Create and manage RMF artifacts and the entire ATO lifecycle
  • Conduct vulnerability assessments on technologies to verify system security and compliance and assist in remediation efforts
  • Review and analyze Git Hub and software vulnerability scans
  • Utilize scripting and development tools to achieve cybersecurity compliance and reporting needs
  • Ensure application, system, environment, or organizational changes do not have an adverse effect on the security posture of the system security compliance and assessment
  • Monitor and validate vulnerability postures in Assured Compliance Assessment Solution (ACAS), and ensure all systems comply with DISA Security Technical Implementation Guidelines (STIG) s and with CSSP requirements
  • Ensure and approve Plan of Action and Milestones (POA&M) are in place for vulnerabilities that cannot be remedied at the time of the finding
Qualifications:
  • Must be a U.S. Citizen with an active DoD Secret clearance (at minimum)
  • Typically requires at least 2 years' experience and a B.S. in Information Technology, Information Security, or related field or equivalent professional experience
  • Experience and knowledge in DoD RMF, NIST Controls, and Authorization to Operate (ATO) processes
  • Knowledge of cybersecurity concepts and tools, such as DISA STIGs, SCAP, SCC Tool
  • Minimum 2 years' experience using the DoD Enterprise Mission Assurance Support Service (eMASS) as a system certification and accreditation tracking tool
  • Trained in the use of the ACAS to include how to remedy Information Assurance Vulnerability Management (IAVM) findings
  • DoD Manual 8140.03 level Intermediate from the Foundational Qualification Options for the (541) Vulnerability Assessment Analyst work role including applicable certification(s) (e.g_Security+)
  • Experience with cloud implementations and environments.
Desired:
  • Familiarity with National Institute of Standards (NIST) directives
  • Experience implementing NIST 800-53 controls
  • Familiarity with any of the following: FEDRAMP, DISA APL, Reciprocity, Dev Sec Ops , SIEM, Microsoft Defender for Cloud
  • Familiarity with RMF 2.0 and Continuous ATO
  • Experience working with Microsoft Azure environments
  • Experience using vulnerability assessment tools as well as analyzing and interpreting assessment results
  • Experience in initial risk assessment activities and ability to assist Authorizing Official risk determination with risk acceptance
  • Experience with container technology
  • Operational knowledge of Git Hub Advanced Security scanning tools, to include reviewing results of custom software security scans

This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.

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…

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