Information Security Systems Officer – ISSO

Guidehouse

. Support implementation and ongoing execution of NIST RMF requirements across assigned authorization boundaries.

Posted 9/22/2026full-timeRemote • United StatesMid-LevelSenior💰 $74,000 - $124,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in implementing NIST RMF requirements and managing cybersecurity compliance, including security control assessments and documentation. Proficient in utilizing risk management tools and integrating security practices into system operations.

Highest-signal resume keywords

NIST RMF ImplementationSecurity Control AssessmentsFIPS 199 ComplianceCybersecurity Risk Management ToolsSecurity+ Certification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

NIST SP 800-53 Rev. 5FISMA ComplianceCloud SecurityVulnerability ManagementIncident Response CoordinationSystem CategorizationContinuous MonitoringRisk AssessmentsSecurity DocumentationPOA&M Management

Tools & Technologies

Governance, Risk, and Compliance Tools

Certifications & Qualifications

Security+ Certification

Industry Keywords

FIPS 199NIST SP 800-60NIST SP 800-37 Rev. 2NIST SP 800-53ANIST IR 8467Public TrustCybersecurityRisk Management FrameworkCompliance GapsSecurity Best Practices

Tech Stack

Tools & technologies

CloudCyber Security

About the role

Key responsibilities & impact

Support implementation and ongoing execution of NIST RMF requirements across assigned authorization boundaries.
Assist with system categorization according to FIPS 199 and NIST SP 800-60.
Identify, document, and maintain NIST SP 800-53 Rev. 5 security and privacy control implementations, tailoring, and inheritance.
Develop, review, and maintain RMF and security documentation, including FIPS 199 documents, SSPs, POA&Ms, privacy and risk assessments, continuous monitoring documentation, SOPs, and security agreements.
Support security control assessments, remediation efforts, and authorization activities.
Identify security weaknesses, vulnerabilities, and compliance gaps; document findings and coordinate corrective actions.
Manage POA&Ms through remediation and closure.
Support ATO, reauthorization, and ongoing authorization activities.
Monitor systems for FISMA and organizational cybersecurity policy compliance.
Integrate security requirements into system design, development, implementation, and operational changes.
Support continuous monitoring, vulnerability management, configuration management, and periodic assessments.
Coordinate vulnerability scanning, review scan results, and track remediation.
Assist with incident response coordination, reporting, investigation, and corrective actions.
Promote security best practices and acceptable risk levels.
Manage boundary records in governance, risk, and compliance tools.

Requirements

What you’ll need

Bachelor’s degree in computer science, information technology, or cybersecurity.
Current Security+ certificate.
Minimum (3) three years of experience in cybersecurity.
Experience utilizing enterprise cybersecurity risk management and governance tools.
Experience with cloud security.
Must be able to obtain and maintain a Federal or DoD Public Trust.
Candidates must receive approved adjudication of their Public Trust prior to onboarding with Guidehouse.
Working knowledge or familiarity with FISMA (2014).
Working knowledge or familiarity with NIST SP 800-37 Rev. 2.
Working knowledge or familiarity with NIST SP 800-53 Rev. 5.
Working knowledge or familiarity with NIST SP 800-53A.
Knowledge or experience with NIST IR 8467 Genomic Data Cybersecurity and Privacy Frameworks Community Profile is nice to have.
Travel required up to 10%.

Benefits

Comp & perks

Medical, Rx, Dental & Vision Insurance
Personal and Family Sick Time & Company Paid Holidays
Parental Leave
401(k) Retirement Plan
Group Term Life and Travel Assistance
Voluntary Life and AD&D Insurance
Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
Transit and Parking Commuter Benefits
Short-Term & Long-Term Disability
Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
Employee Referral Program
Corporate Sponsored Events & Community Outreach
Care.com annual membership
Employee Assistance Program
Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)
Position may be eligible for a discretionary variable incentive bonus
Flexible benefits package