Information System Security Officer – ISSO

AMERICAN SYSTEMS

. Maintain the operational security posture of assigned information systems and networks .

Posted 9/28/2026full-timeCarlsbad • California • United StatesMid-LevelSenior💰 $160,000 - $180,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in maintaining operational security posture, developing System Security Plans, and ensuring compliance with Risk Management Framework standards. Proficient in conducting cybersecurity assessments and managing information system documentation in a classified environment.

Highest-signal resume keywords

Information Systems ManagementCybersecurity ExperienceNIST SP 800-53 ControlsRisk Management Framework ComplianceActive TS Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Firewall AdministrationIntrusion Detection SystemsData EncryptionCybersecurity AuditsAccess-Control PoliciesMicrosoft Windows Operating SystemsLinuxSystem VirtualizationCybersecurity AssessmentsVulnerability Identification

Soft Skills

Analytical SkillsProblem-Solving SkillsDecision-Making SkillsCommunication SkillsSelf-Starter

Tools & Technologies

Anti-Virus SoftwareLAN TechnologiesWAN TechnologiesCrypto ManagementKey Management

Industry Keywords

Operational Security PostureSystem Security PlansSecurity Control Traceability MatricesDoD Risk Management FrameworkDoD Instruction 8510.01

Tech Stack

Tools & technologies

Cyber SecurityLinuxTypeScript

About the role

Key responsibilities & impact

Maintain the operational security posture of assigned information systems and networks
Develop and maintain System Security Plans and Security Control Traceability Matrices
Ensure confidentiality, integrity, accessibility, and operational availability of information system resources
Advise Information Systems Security Managers, Program Security Officers, and Delegated Authorizing Officials
Perform alternate ISSM duties to maximize operational readiness and effectiveness
Maintain Authority to Operate and Authorization to Connect while ensuring Risk Management Framework compliance
Prepare organizations for cybersecurity, physical security, and personnel security assessments
Conduct regular cybersecurity assessments to identify vulnerabilities and evaluate security controls
Develop Plan of Action and Milestones, inspection reports, remediation strategies, and supporting documentation
Develop and integrate access-control policies and procedures
Participate in professional engagements with supporting and supported organizations
Maintain information system documentation and advise the Configuration Control Board on ATO/ATC conflicts
Conduct cybersecurity audits and manage audit records
Complete initial and annual training required to maintain system and network access

Requirements

What you’ll need

5 years of information systems management and cybersecurity experience
Active TS clearance with SCI and/or SAP eligibility
Proficient in firewall administration, intrusion detection systems, anti-virus software, and data encryption
Familiarity with LAN and WAN technologies and best practices in a classified environment, including crypto and key management
In-depth knowledge of information security principles and practices, including NIST SP 800-53 controls, DoD Risk Management Framework (RMF), and DoD Instruction 8510.01
Experience with cybersecurity RMF compliance and regulatory requirements
Working knowledge of Microsoft Windows operating systems, Linux, and system virtualization in a secure network environment
Strong analytical, problem-solving, and decision-making skills
Strong communication skills and ability to brief executives and program IPT-level leadership
Self-starter with strong work ethic and willingness to be a contributing IPT member

Benefits

Comp & perks

Healthcare benefits
Paid leave
Retirement plans
Insurance programs
Education and training assistance
Employee ownership