Senior IT Security Control Assessor

Job Family:

Cyber Consulting Travel Required:

Up to 25%

Clearance Required:

Ability to

Obtain Secret What You Will Do:

Lead teams conducting FISMA security control assessments in accordance with NIST SP 800-53 and

NIST SP 800-53A

Support system authorization efforts across the RMF lifecycle Perform control testing, interviews, and evidence reviews for management, operational, and technical controls Document assessment results, findings, and risk determinations in SARs and related ATO artifacts Identify control gaps, weaknesses, and POA&M items with clear, actionable remediation guidance Coordinate with system owners, ISSOs, engineers, and program stakeholders during assessments Support continuous monitoring activities, including ongoing control assessments and ad hoc reviews Ensure assessments align with agency-specific cybersecurity compliance and information security policies Oversee team deliverable reviews, offering real-time feedback and coaching to improve quality and performance.

What You Will Need:

Bachelor's degree in computer science, Information Technology, Cybersecurity, or related field Minimum of FIVE (5) years of experience in cybersecurity Must be able to OBTAIN and

MAINTAIN

a Federal or DoD "SECRET" security clearance; candidates must obtain approved adjudication of clearance prior to onboarding with Guidehouse. Candidates with an ACTIVE "SECRET" or higher-level clearance are preferred. Demonstrated experience performing FISMA or RMF-based security control assessments Strong working knowledge of

FISMA, NIST SP 800-53, NIST SP 800-53A, NIST SP 800-37

Experience assessing cloud-based systems, including inherited controls Ability to clearly document technical and non-technical findings for audit-ready reporting Understanding of federal cybersecurity compliance requirements and governance processes Relevant certifications preferred (e.g., CISSP, CISA, CAP, GSLC) Team leadership experience

What Would Be Nice To Have:

Master's Degree in in computer science, Information Technology, Cybersecurity, or related field Certified Information Systems Security Professional (CISSP) Knowledge of cloud security (FedRAMP) Experience with security tools (ACAS/Nessus, Splunk, etc.) Project management experience

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 Position may be eligible for a discretionary variable incentive bonus Parental Leave and Adoption Assistance 401(k) Retirement Plan Basic Life & Supplemental Life Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts Short-Term & Long-Term Disability Student Loan PayDown Tuition Reimbursement, Personal Development & Learning Opportunities Skills Development & Certifications Employee Referral Program Corporate Sponsored Events & Community Outreach Emergency Back-Up Childcare Program Mobility Stipend 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. Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors. With an integrated business technology approach, Guidehouse drives efficiency and resilience in the healthcare, financial services, energy, infrastructure, and national security markets. Built to help clients across industries outwit complexity, the firm brings together approximately 18,000 professionals to achieve lasting impact and shape a meaningful future. guidehouse.com