Information System Security Officer

SMX

Cleared Hybrid Information System Security Officer supporting mission-critical federal programs. Ensuring cybersecurity compliance and operational integrity across multiple systems and projects.

Posted 7/7/2026full-timeHanover • Maryland • 🇺🇸 United StatesMid-LevelSenior💰 $103,000 - $171,800 per yearWebsite

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

Provide security advisory support to System Owners (SOs), Business Process Owners, ISSMs, and program leadership on matters related to information system security
Support implementation, maintenance, and continuous improvement of security controls across enterprise systems and applications
Coordinate and execute RMF activities including system categorization, control implementation, security assessments, authorization activities, and continuous monitoring
Develop, review, and maintain System Security Plans (SSPs), POA&Ms, Security Assessment Plans, security procedures, and related authorization documentation
Assess system security posture and recommend corrective actions to address risks, vulnerabilities, and compliance deficiencies
Conduct security reviews and assessments to validate implementation and effectiveness of security controls
Collaborate with engineers, system administrators, developers, and government stakeholders to ensure security requirements are integrated throughout the system lifecycle
Support Authorization to Operate (ATO) activities and ongoing authorization maintenance efforts
Execute vulnerability management activities including identification, remediation tracking, risk assessment, and validation of corrective actions
Review and validate access control implementations, privileged account management, hardware inventories, software inventories, and security configurations
Develop security reports, dashboards, metrics, and recommendations for government leadership
Support audit activities, compliance reviews, inspections, and security assessments conducted by internal and external organizations
Provide guidance regarding physical and logical protection of information system assets
Evaluate security program effectiveness and recommend improvements to policies, procedures, and operational practices
Support incident response, security investigations, and remediation activities as required
Advise leadership on emerging threats, cybersecurity risks, and security improvement opportunities

Requirements

What you’ll need

Active Secret clearance required
Minimum of 5 years of professional experience supporting cybersecurity, information assurance, RMF, or information system security activities
Demonstrated experience serving as an ISSO, ISSM support resource, or security practitioner within a federal environment
Strong experience supporting Risk Management Framework (RMF) activities and Authorization to Operate (ATO) processes
Experience developing and maintaining SSPs, POA&Ms, Security Assessment Plans, authorization artifacts, and related security documentation
Strong knowledge of NIST 800-53, NIST 800-37, FISMA, and federal cybersecurity requirements
Experience implementing, assessing, and maintaining security controls across enterprise information systems
Experience supporting continuous monitoring programs, vulnerability management, and compliance initiatives
Experience evaluating system security risks and developing risk-based mitigation strategies
Experience supporting audits, assessments, inspections, and compliance reviews
Strong understanding of access control management, security documentation, risk assessment, and security operations
Strong analytical, troubleshooting, and problem-solving skills
Ability to communicate technical security concepts to technical and non-technical audiences
Strong written and verbal communication skills
Ability to work independently while managing multiple priorities and supporting complex security initiatives.

Benefits

Comp & perks

Health insurance
Paid leave
Retirement plans
Competitive compensation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Information System SecuritySecurity AssessmentsAuthorization to Operate (ATO)Security DocumentationRisk AssessmentAccess Control ManagementContinuous MonitoringSecurity Controls ImplementationCompliance ReviewsIncident Response

Soft Skills

Analytical SkillsProblem-Solving SkillsWritten CommunicationVerbal CommunicationIndependent Work