Information System Security Officer – ISSO

CACI International Inc

. Serve as the single point of contact for systems security matters .

Posted 10/2/2026full-timeRemote • United StatesSeniorLead💰 $90,300 - $189,600 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in cybersecurity engineering, risk management framework activities, and compliance with FISMA and NIST standards. Proficient in developing and maintaining System Security Plans, conducting risk assessments, and advising on cybersecurity matters.

Highest-signal resume keywords

Cybersecurity EngineeringRisk Management Framework (RMF)System Security Plans DevelopmentFISMA ComplianceNIST SP 800-53 Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Information SecurityRisk AssessmentSecurity Control SelectionContinuous MonitoringConfiguration ManagementIncident Response PlanningVulnerability AssessmentChange Request ApprovalBusiness Impact AnalysisSelf-Assessments

Soft Skills

Advisory SkillsLeadership

Tools & Technologies

CSAMRegScaleEMASSGRC Tools

Certifications & Qualifications

CISSPCISMCompTIA CASP+

Industry Keywords

FISMADHS 4300 SeriesNISTCloud SecurityFedRAMP Authorization

Tech Stack

Tools & technologies

CloudCyber Security

About the role

Key responsibilities & impact

Serve as the single point of contact for systems security matters
Lead cybersecurity engineering efforts for assigned Program Management Organizations
Support the Compliance Branch Lead
Spearhead systems’ Authority to Operate efforts
Maintain security posture in compliance with FISMA, DHS 4300 Series, NIST, and DHS and Component Directives
Execute complete Risk Management Framework activities for Authority to Operate decisions
Perform system categorization, security control selection and implementation, self-assessments, POA&M development, and continuous monitoring
Develop and maintain System Security Plans, including control baselines, inheritance, Business Impact Analyses, implementation statements, technical and system descriptions, and hardware and software inventories
Create and maintain Configuration Management Plans
Conduct Security Impact Analyses, approve Change Requests, and document security impacts of configuration changes
Develop and test Contingency Plans and Incident Response Plans
Conduct annual risk assessments and support security and vulnerability assessments
Advise system owners and senior executives on cybersecurity matters
Develop remediation work plans for assessment and audit findings
Maintain Hardware and Software Inventory Lists
Conduct FISMA Scorecard Analysis
Ensure proper access controls for system access
Track and suggest technologies, processes, and practices to protect networks, devices, programs, and data
Research and maintain proficiency in tools, techniques, countermeasures, and trends in computer and network vulnerabilities, data hiding, network and device security, and encryption

Requirements

What you’ll need

U.S. Citizenship required
DHS EOD suitability or Current DHS EOD preferred
BS/BA + 8 years of applicable experience in information security
7+ years of experience in information security
Demonstrated expertise in RMF, Information Security processes, audits, tools, implementation, FISMA, NIST, IT security
Experience developing System Security Plans, POA&Ms, and Configuration Management Plans
Knowledge of NIST SP 800-37, NIST SP 800-53, and DHS 4300 Series requirements
One of the following IAT Level III qualifications desired: CISSP, CISM, or CompTIA CASP+
Previous DHS experience desired
Experience with CSAM, RegScale, eMASS, or similar GRC tools desired
Experience supporting emergency operations or disaster response missions desired
Knowledge of cloud security and FedRAMP authorization processes desired
Experience with continuous monitoring desired

Benefits

Comp & perks

Flexible time off benefit
Robust learning resources
Healthcare benefits
Wellness benefits
Financial benefits
Retirement benefits
Family support benefits
Continuing education benefits
Time off benefits
Competitive compensation
Learning and development opportunities