Security Assessor

Guidehouse; Tysons (VA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical, Rx, Dental & Vision Insurance

401(k) Retirement Plan

Parental Leave and Adoption Assistance

Mobility Stipend

Job summary

Guidehouse is seeking a Security Assessor to support security and privacy control assessments for public-sector systems. You will evaluate control effectiveness, validate evidence, and contribute to formal assessment documentation under guidance from a Senior Security Assessor.

This role emphasizes assessment execution and documentation, with exposure to security engineering and AI-enabled compliance approaches.

Qualifications

• Minimum of three years of experience in security control assessments or related activities.
• Bachelor's degree from an accredited university.
• US Citizenship is contractually required.
• Hands-on experience contributing to formal security assessment documentation (SSPs, SARs, POA&Ms).
• Working knowledge of NIST SP 800-53 security and privacy controls.
• Ability to analyze assessment evidence and clearly document findings.

Responsibilities

• Perform security and privacy control assessments in accordance with established assessment plans.
• Review security documentation and technical evidence.
• Validate control implementation through evidence inspection.
• Architecture and system documentation review.
• Interviews with system owners and technical staff.
• Contribute to assessment artifacts, including SSP updates, SARs, ISRAs, POA&Ms.
• Document assessment results and clearly articulate control gaps and risks.
• Identify opportunities to improve assessment efficiency through standardization, tooling, or automation.
• Support the use of data-driven or AI-assisted techniques to enhance analysis, traceability, and reporting.

Skills

Security assessments

Audit support

Risk-based assessment

Education

Bachelor's degree

Tools

NIST SP 800-53

Job description

Job Family: Technology Consulting Travel Required: Up to 10% Clearance Required: None

What You Will Do

The Security Assessor supports security and privacy control assessments for public‑sector systems by evaluating control effectiveness, validating evidence, and contributing to formal assessment documentation under the direction of a Senior Security Assessor. This role is primarily focused on assessment execution and documentation; however, it also provides exposure to more technical aspects of system architecture and control implementation. Candidates should demonstrate curiosity and interest in expanding their skillset toward security engineering, automation, and emerging AI‑enabled approaches to compliance and assessment activities. This role focuses on assessment execution and documentation, not system engineering or operational security responsibilities.

Key job responsibilities include the following:

• Perform security and privacy control assessments in accordance with established assessment plans
• Review security documentation and technical evidence
• Validate control implementation through: Evidence inspection
• Architecture and system documentation review
• Interviews with system owners and technical staff
• Contribute to assessment artifacts, including: SSP updates, SARs, ISRAs, POA&Ms
• Document assessment results and clearly articulate control gaps and risks
• Maintain assessment independence and objectivity
• Identify opportunities to improve assessment efficiency through standardization, tooling, or automation of evidence collection and validation
• Support the use of data-driven or AI-assisted techniques to enhance analysis, traceability, and reporting over time

What You Will Need

• Minimum of THREE (3) years of overall work experience ideally in supporting security control assessments, audits, or authorization activities
• Bachelors Degree from an accredited university
• US Citizenship is contractually required
• Hands‑on experience contributing to formal security assessment documentation (SSPs, SARs, POA&Ms, or equivalents)
• Working knowledge of NIST SP 800‑53 security and privacy controls
• Understanding of risk‑based assessment concepts
• Ability to analyze assessment evidence and clearly document findings

What Would Be Nice To Have

• Experience supporting government or other regulated environments
• Exposure to CMS, healthcare, or public‑sector security compliance frameworks
• Familiarity with A&A, RMF, or Security Control Assessment processes
• Relevant certifications (CISA, CISSP, CISM, Security+, or similar)
• Prior background in or exposure to security engineering, cloud security, or system implementation
• Familiarity with modern architectures (cloud platforms, IAM, logging/monitoring, APIs) and how controls are implemented in those environments
• Exposure to automation tools, scripting, or GRC platforms supporting assessment or compliance activities
• Interest in applying AI/automation to improve audit readiness, evidence analysis, or continuous monitoring processes

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 [e-mail]. 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 [e-mail]. 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 [e-mail]. 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