Senior IT Security Assessor - RMF/ATO Expert

Location 320 First Street,Washington, DC, 20534,United States Employee Type Exempt FT Phone View phone number on click.appcast.io Email View email address on click.appcast.io About the Opportunity The IT Security Specialist III will lead and conduct in-depth assessments of security control effectiveness across classified and unclassified information systems, ensuring compliance with NIST SP 800-53A and applicable federal cybersecurity requirements in a remote and on-site work environment. You will evaluate technical and administrative controls, document assessment results, and clearly communicate risk findings and recommendations to technical teams, system owners, and senior leadership. In this role, you will support Authorization to Operate (ATO) and risk management decisions by providing objective, evidence-based assessments that directly inform system risk posture. You will also contribute to the refinement and standardization of assessment methodologies, helping improve consistency, efficiency, and rigor across the cybersecurity assessment lifecycle. Your work ensures systems remain compliant, resilient, and aligned with evolving regulatory and organizational requirements. What You Will Do in This Role Lead and conduct in-depth assessments of security control effectiveness across classified and unclassified information systems Evaluate technical, operational, and management controls for compliance with NIST SP 800-53A and applicable federal cybersecurity requirements Document assessment findings, identify control deficiencies, and provide clear, risk-based recommendations Communicate assessment results, risk posture, and mitigation guidance to system owners, technical teams, and senior leadership Support Authorization to Operate (ATO) and broader risk management decisions through evidence-based control assessments Contribute to the development, refinement, and standardization of security control assessment methodologies and processes Enhance consistency, rigor, and efficiency across the assessment lifecycle Ensure systems remain compliant with evolving regulatory, contractual, and organizational cybersecurity requirements What You Will Bring Bachelor’s degree in cybersecurity, information systems, computer science, or related field 8+ years of overall cybersecurity or information assurance experience 5+ years of direct experience supporting RMF, ATO, SA&A, or security control assessment activities within federal or regulated environments 2+ years of experience in a senior, lead, or SME-level capacity performing independent security control assessments or supporting risk-based decision-making Extensive experience with security control assessment methodologies, including NIST SP 800-53A Strong understanding of federal cybersecurity compliance frameworks, risk management principles, and the Authorization to Operate (ATO) process Ability to analyze, interpret, and clearly communicate complex technical findings to both technical and non-technical stakeholders, including leadership One or more certifications preferred: CISA, CRISC, CISSP, or CGRC This position is contingent upon contract award and funding. No employment relationship exists unless and until a formal written offer of employment is extended following contract award. Work authorization/security clearance requirements Ability to obtain a security clearance. Why GAMA-1 GAMA-1 also offers a variety of benefits, including health insurance coverage, life and disability insurance, 401(k) savings plan, training and career development opportunities, paid holidays and paid time off (PTO - to cover vacation, illness or disability, appointments, emergencies or other situations that require time off from work). For more GAMA-1 Corporate benefits information click here. ABOUT GAMA-1 GAMA-1 is a rapidly growing technology business that is based in Greenbelt, Maryland. GAMA-1 Technologies provides strategic information assurance, information security, and business enterprise and networking solutions to the Federal Government. Our success is based on using industry and agency standards, establishing and performing with standardized processes, and IT Services expertise. At GAMA-1, we believe employees should grow, achieve, and develop just as the company grows, achieves, and develops. GAMA-1 is committed to providing our employees with opportunities for career advancement throughout their employment. For more information, visit GAMA-1 is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to: veteran status, uniformed servicemember status, race, color, religion, sex, sexual orientation, gender identity, age, pregnancy (including childbirth, lactation and related medical conditions), national origin or ancestry, citizenship or immigration status, physical or mental disability, genetic information (including testing and characteristics), domestic violence victims, political orientation, status as a smoker or tobacco user, hairstyle, use of a service animal, education status, familial status, HIV/AIDS status, height, weight, reproductive healthcare decisions or any other category protected by federal, state or local law. #J-18808-Ljbffr