Information Security Systems Officer (ISSO)
Apply Job ID 44761 Date posted 09/22/2026Job Family:
IT Cyber Security
Travel Required:
Clearance Required:
What You Will Do:
- Support the implementation and ongoing execution of the NIST RMF requirements across assigned authorization boundaries.
- Assist in system categorization in accordance with FIPS 199 and NIST SP 800-60 guidance.
- Help identify, document, and maintain applicable NIST SP 800-53 r5 security and privacy control implementations, control tailoring and inheritance.
- Develop, review, and/or maintain RMF or security related documentation, including:
- FIPS 199
- System Security Plans (SSPs)
- Plans of Action and Milestones (POA&Ms)
- Privacy and risk assessments
- Continuous monitoring documentation
- System specific security control or organizational level standard operating procedures
- Memorandums of Agreement/Understanding or Interconnection Security Agreements
- Support security control assessments, remediation efforts, and authorization activities.
- Identify security weaknesses, vulnerabilities, and compliance gaps; document findings and work with stakeholders to develop corrective actions.
- Manage and maintain POA&Ms resulting from continuous monitoring or assessment results to ensure weaknesses are tracked through to remediation and closure.
- Support the preparation of boundaries for Authorization to Operate (ATO), reauthorization, and ongoing authorization activities.
- Monitor systems for compliance with FISMA and organizational cybersecurity policies, standards, and procedures.
- Ensure security requirements are integrated into system design, development, implementation, and operational changes.
- Support continuous monitoring activities, including control status reviews, vulnerability management, configuration management, and periodic assessments.
- Coordinate vulnerability scanning, review scan results, and track remediation of identified findings.
- Assist in incident response coordination, reporting, investigation, and follow-up corrective actions.
- Promote security best practices and help ensure systems maintain an acceptable level of risk.
- Manage boundary records in the applicable governance, risk, and compliance tool.
What You Will 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. Candidates with an active Public Trust or existing suitability are preferred.
- Working knowledge or familiarity with:
- FISMA (2014): Federal mandated framework for information security
- NIST SP 800-37 Rev. 2: Risk Management Framework for Information Systems and Organizations
- NIST SP 800-53 Rev. 5: Security and Privacy Controls for Information Systems
- NIST SP 800-53A: Assessing Security and Privacy Controls
What Would Be Nice To Have:
Working knowledge or experience with NIST IR 8467 Genomic Data Cybersecurity and Privacy Frameworks Community Profile
The annual salary range for this position is $74,000.00-$124,000.00. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
What We Offer:
Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.
Benefits include:
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
About Guidehouse
Guidehouse is an Equal Opportunity Employer–Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation.
Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.
If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at 1-571-633-1711 or via email at RecruitingAccommodation@guidehouse.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.
All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or guidehouse@myworkday.com. Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.
If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse’s Ethics Hotline. If you want to check the validity of correspondence you have received, please contact recruiting@guidehouse.com. Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant’s dealings with unauthorized third parties.
Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.
