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CACI International Inc

CACI International Inc

via Remote Rocketship

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Information Systems Security Officer – ISSO

Anywhere
full-time
Posted 10/16/2025
Verified Source
Key Skills:
FISMA
NIST SP 800-53A
Information Security Officer (ISSO)
Certification & Accreditation (C&A)
Security Documentation
Security Audits
IT Security Assessment
Compliance Management
Incident Response
Security Policy Development

Compensation

Salary Range

$120K - 160K a year

Responsibilities

Perform IT security assessments and audits to ensure FISMA compliance, develop and maintain security documentation, support ISSO functions to maintain Authority to Operate, and assist with security solution evaluations and configuration management.

Requirements

Requires 15 years experience or equivalent, 4+ years as ISSO with FISMA experience, ability to obtain DoD clearance and DHS EOD, strong knowledge of NIST and federal security standards, and excellent communication skills.

Full Description

Job Description: • Provide IT security assessment and IT security audit functions to ensure FISMA compliance. • Develop and maintain documentation in support of Certification & Accreditation (C&A). • Provide ISSO support to ensure customer systems obtain and maintain their Authority to Operate (ATO) with a security posture in accordance with NIST SP 800-53A guidance. • Ensure all C&A and system security documentation (Security Plan, Privacy Threshold Analysis, Privacy Impact Assessment, e-Authentication, FIPS-199, Business Impact Analysis, Continuity of Operations, Inter-Agency Service Agreement, etc.) is kept up to date or created when needed. • Provide support to Federal ISSO for implementing, and enforcing information systems security policies, standards, and methodologies. • Prepare and maintain documentation. • Assist in the evaluation of security solutions to ensure they meet security requirements for processing DHS information. • Assist as required with the Configuration Management (CM) for the information system to maintain security. • Develop and maintain documentation for C&A in accordance with NIST, FISMA and DHS policies. • Assist with evaluating security solutions to ensure they meet security requirements for processing system's designated data requirements. • Maintain operational security posture for an information system or program. • Provide support to System Owner (SO) and Information System Security Manager (ISSM) for maintaining the appropriate operational IA posture for a system, program, or enclave. • Develop and update system security plans and other IA documentation. • Provide information assurance for all information security systems, ensuring its confidentiality, integrity, and availability. • Provide supporting documentation for decisions granting authorization to operate IT systems at acceptable levels of risk, monitoring and testing of IT systems for vulnerabilities and indications of compromise, incident response and remediation, the development of appropriate policy, relevant user security awareness and training, and compliance with applicable government and other external standards. Requirements: • Ability to obtain DoD Security Clearance • Ability to obtain Department of Homeland Security (DHS) Entry On Duty (EOD) - Active EOD preferred • BA/BS and 15 years’ experience (equivalency includes MA/MS + 13 years applicable experience or AA/AS +17) • 4+ years as an ISSO, working with FISMA, or in other directly relatable positions • Demonstrated experience in SELC, Information Security processes, audits, tools, implementation, FISMA, NIST, and IT security • Understanding of information security best practices • Ability to work independently and as part of a team • Able to communicate clearly and professionally with senior Federal government representatives to field and troubleshooting questions and issues Benefits: • healthcare • wellness • financial • retirement • family support • continuing education • time off benefits

This job posting was last updated on 10/21/2025

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