Senior IT Security Control Assessor

Job Description

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.