CHRISTIAN DANSBY
Hampton,VA
Summary
Cybersecurity leader with over 9 years of experience supporting national security through cyber risk management and systems protection. Proven expertise in developing ATO packages, implementing RMF controls, analyzing security vulnerabilities, and leading assessment activities using tools such as eMASS, ACAS, Nessus, and SCC. Highly skilled in NIST 800-53 control families, POA&M management, STIG remediation, and compliance with DoD cybersecurity policies.
Overview
9
9
years of professional experience
1
1
Certification
Work History
Information System Security Officer
Amentum
03.2024 - Current
- Implemented full RMF lifecycle for standalone systems, increasing compliance rates by 40% and contributing to the successful preparation of ATO packages.
- Conducted vulnerability scans using ACAS and Nessus, enabling remediation of 95% of security findings within mandated timelines and strengthening system integrity.
- Created and maintained all eMASS records for multiple enclaves, ensuring full traceability and audit-readiness for RMF control implementations.
- Collaborated with system owners and ISSMs to refine continuous monitoring practices, which reduced POA&M resolution times by 25% and improved monthly reporting accuracy.
- Reviewed STIGs and provided technical mitigation guidance to administrators, increasing implementation of corrective actions by 30% and enhancing overall cybersecurity posture.
RMF Security Analyst
Analynce
08.2023 - 03.2024
- Authored complete RMF security documentation and supported control assessments for a NASA enclave, contributing to an ATO approval that reduced authorization delays by 20%.
- Maintained all system artifacts in eMASS, improving artifact completeness by 30% and supporting accurate validation of control evidence during audits.
- Led analysis of ACAS scan results and correlated vulnerabilities with applicable STIG findings to inform risk-based remediation strategies.
- Partnered with engineering teams to address configuration compliance issues using SCC, which improved technical control implementation.
- Conducted gap analyses against NIST 800-53 controls, resulting in targeted POA&M creation and improved tracking of corrective action milestones.
Information System Security Officer
US Air Force
02.2019 - 08.2023
- Managed end-to-end RMF processes for classified systems, including development of ATO packages in eMASS and XACTA, resulting in 100% on-time system authorizations.
- Mentored junior cyber analysts in control assessments and scan interpretation, increasing team output by 25% and standardizing documentation quality.
- Analyzed Nessus vulnerability data and prioritized remediation based on mission impact, achieving and maintaining 98% patch compliance.
- Facilitated technical and non-technical briefings for leadership, ensuring awareness of security risks and progress toward POA&M closure.
- Evaluated change requests for cyber impact and supported vulnerability assessments, reducing risk exposure through secure implementation strategies.
Information System Security Officer
US Air Force
08.2016 - 02.2019
- Designed and implemented RMF processes across newly acquired systems, improving control compliance by 45% and aligning with Air Force cybersecurity directives.
- Managed XACTA-based system authorization packages and created POA&Ms for open findings, leading to successful reauthorization of critical systems.
- Performed forensic investigations and incident analysis, reducing recurrence of cyber events by 35% through improved detection and response coordination.
- Oversaw network access control and clearance validation for SCIF personnel, maintaining 100% compliance with DoD personnel security standards.
- Participated in configuration control boards to assess cyber impacts of proposed changes, reducing vulnerability exposure by 25% and ensuring secure operations.
Education
Master of Cybersecurity and Information Assurance - Cyber Security
Western Governs University
12.2024
Bachelor of Cybersecurity and Information Assurance -
Western Governs University
01.2023
Skills
- Risk Management Framework (RMF)
- NIST 800-53 Control Implementation
- System Security Plan (SSP) Development
- Plan of Action & Milestones (POA&M) Management
- Security Control Assessments (SCA)
- Authority to Operate (ATO) Package Development
- Continuous Monitoring Strategy
- eMASS (Enterprise Mission Assurance Support Service)
- XACTA
- Nessus / Tenablesc
- ACAS (Assured Compliance Assessment Solution)
- SCC (Security Content Compliance)
- ConfigOS
- STIG Viewer / DISA STIG Compliance
Personal Information
Certification
- Security+ - CompTIA
- CISM - ISACA
- Network+ - CompTIA
- Project+ - CompTIA
- ITIL v4 - Foundation AXELOS
- PenTest+ - CompTIA
- GCED - GIAC
- GMON - GIAC
Timeline
Information System Security Officer
Amentum
03.2024 - Current
RMF Security Analyst
Analynce
08.2023 - 03.2024
Information System Security Officer
US Air Force
02.2019 - 08.2023
Information System Security Officer
US Air Force
08.2016 - 02.2019
Master of Cybersecurity and Information Assurance - Cyber Security
Western Governs University
Bachelor of Cybersecurity and Information Assurance -
Western Governs University
Similar Profiles
Meghan MoranMeghan Moran
Material Coordinator at AmentumMaterial Coordinator at Amentum
JEFFREY AGEEJEFFREY AGEE
Logistics Analyst at AmentumLogistics Analyst at Amentum
Kavita FrancoisKavita Francois
Production Control Clerk at AmentumProduction Control Clerk at Amentum
Dylan Paul BlackshearDylan Paul Blackshear
Patent Analyst / Commercial Team Co-Manager at Global Patent SolutionsPatent Analyst / Commercial Team Co-Manager at Global Patent Solutions
Mikayla WelbornMikayla Welborn
Childcare Worker - Shift Lead at Peninsula Community ChapelChildcare Worker - Shift Lead at Peninsula Community Chapel