Andrew D. Ambush
Chesapeake,VA
Summary
Highly experienced Information Systems Security Officer with a proven track record in SAP system security, configuration management, and data analysis. Expertise in developing and implementing security protocols, managing system changes, and ensuring compliance with security directives. Adept at translating complex technical requirements into actionable strategies that enhance system security and operational efficiency. Experienced leader with strong background in guiding teams, managing complex projects, and achieving strategic objectives. Excels in developing efficient processes, ensuring high standards, and aligning efforts with organizational goals. Known for collaborative approach and commitment to excellence.
Overview
16
16
years of professional experience
1
1
Certification
Work History
NCOIC, Network Administration
170 Combat Ops Sq (USAFR)
Langley AFB, VA
02.2026 - Current
- Maintained 99.99% network uptime for a critical Local Area Network (LAN) supporting 100+ personnel by performing proactive maintenance and troubleshooting of Cisco and Juniper routers/switches."
- Implemented DoW Security Technical Implementation Guides (STIGS) to secure network devices, reducing unauthorized access attempts by 90%.
- Managed and configured enterprise-level firewalls (Cisco SA/Checkpoint) to secure SIPRNet and NIPRNet data traffic.
- Conducted vulnerability scanning and remediation using ACAS, patching 100% of critical systems within required timelines.
- Administered Active Directory, DNS, and DHCP services for over 100+ users and devices across the unit.
- Configured and managed virtualized environments using VMware ESXi to optimize server performance and resource allocation."
- Troubleshot complex Layer 2/Layer 3 networking issues, reducing average ticket resolution time by 45%.
- Demonstrated strong organizational and time management skills while managing multiple projects.
SAP Information Systems Security Officer
Leidos Inc.
Langley AFB, VA
08.2022 - Current
- Led the Cybersecurity program for accreditation and certification for TS/SAR SAP facilities, ensuring compliance with DoD and Air Force security directives.
- Developed and implemented security plans, resulting in a 70% reduction in security vulnerabilities within the first year.
- Managed and controlled SAP system changes, mitigating potential security risks and maintaining operational integrity.
- Oversaw SAP account authorization and management for 20+ users, ensuring proper access controls and security clearances.
- Led security education, training, and awareness programs, training over 500+ personnel on SAP security protocols.
- Provided strategic guidance on regulatory compliance and risk management initiatives.
- Managed incident response processes, ensuring timely resolution and minimal business impact.
- Populated and maintained the XACTA database with system accreditation data, creating Plans of Action and Milestones (POA&Ms) and implementing Security Assessment Report (SAR) corrective actions.
- Developed and updated network infrastructure documentation and SOPs, improving disaster recovery capability.
- Managed inventory and configuration for 200+ pieces of network hardware, ensuring compliance with AF regulations.
- Conducted risk assessments to identify vulnerabilities and recommend mitigation strategies.
Enterprise Data Engineer
Leidos Inc.
Langley AFB, VA
06.2020 - 08.2022
- Engineered and refined data analytics processes, leading to 10% increase in operational efficiency for the 480th ISRW.
- Constructed and managed Confluence Spaces, providing high-quality data organization and improving information accessibility for 300+ users.
- Developed custom workflows and web pages, streamlining network account assignments and resolving trouble calls for over [number] users.
- Served as a technical expert for USAF Wing-level web infrastructure, assisting in the development of short- and long-term strategies for ISR data maintenance and upgrades.
- Maintained and improved Jira/Confluence capabilities in compliance with Enterprise Process Management System (EPMS) business practices.
- Designed and implemented scalable data pipelines for ETL processes across multiple platforms.
System Administrator
CSRA Inc.
Newport News, VA
10.2015 - 06.2020
- Administered Windows Server (2003/2008), Linux, and UNIX environments, ensuring system stability and performance.
- Implemented and enforced cybersecurity procedures, protecting enterprise information technology services.
- Managed system configurations and updates to ensure optimal performance and security.
- Developed and implemented backup solutions to safeguard critical data integrity.
- Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.
Operations Center Comm Support Technician
USAF-ACC/A3O (AD Tour)
Langley AFB, VA
01.2018 - 09.2019
- Information System Security Officer responsible for maintaining the security accreditation of NIPR, SIPR, and GCCS machines for Crisis Action Team.
- Monitored systems and updated security plans in compliance with the operations security directives.
- Designed, administered, and managed the ACC Operations Center SharePoint Pages and all sub-sites.
- Provided technical support for various systems, ensuring operational efficiency and user satisfaction.
- Troubleshot hardware and software issues, enhancing system reliability and performance.
Knowledge Operations Manager
USAF-ACC/A3EA (AD Tour)
Langley AFB, VA
12.2009 - 08.2013
- Served as a technical expert and focal point for the executive and administrative office in ACC/A3 providing support and configuring hardware and software on computers and PDA’s.
- Assisted in financial management and purchasing of over $500K worth of computer equipment SharePoint Content Manager for HQ ACC/A3 provided first-level support to resolve technical issues.
Education
BS Degree in Progress - Network Engineering and Security
Western Governor’s University
Salt Lake City, UTSkills
- Security: SAP Security, System Accreditation & Certification, Vulnerability Management (ACAS, Nessus, McAfee), Security Policy Development, Incident Response, Risk Assessment, JPAS, DISS
- Systems/Software: SAP (specify modules if possible), Windows Server (Specify versions, like 2016/2019), Linux, VMWare, SharePoint (2013/2016), Jira, Confluence, Microsoft O365
- Network: Network administration, Computer network operations, Network maintenance, Network monitoring tools, VMware administration, Network security analysis
- Data/Analysis: Data Analysis, Reporting & Documentation, Configuration Management, Database Management
Certification
- CompTIA Security+ CE
- CompTIA A+
Timeline
NCOIC, Network Administration
170 Combat Ops Sq (USAFR)
02.2026 - Current
SAP Information Systems Security Officer
Leidos Inc.
08.2022 - Current
Enterprise Data Engineer
Leidos Inc.
06.2020 - 08.2022
Operations Center Comm Support Technician
USAF-ACC/A3O (AD Tour)
01.2018 - 09.2019
System Administrator
CSRA Inc.
10.2015 - 06.2020
Knowledge Operations Manager
USAF-ACC/A3EA (AD Tour)
12.2009 - 08.2013
BS Degree in Progress - Network Engineering and Security
Western Governor’s University