Marshall S. Williams
Jonesboro
Summary
Cybersecurity professional with robust experience in SOC operations, security awareness training, and RMF compliance. Expertise in tools including Splunk, Insight IDR, Nessus, and Rapid7, alongside a comprehensive understanding of NIST 800-53 and FISMA regulations. Proven track record in incident response, vulnerability management, and eMASS documentation support, recognized for high productivity in security management. Security-focused professional with background in unit security management. Familiarity with implementing and monitoring security measures to maintain the integrity of sensitive information. Strengths include managing access control systems, conducting thorough security risk assessments, and coordinating emergency response protocols. Previous work has resulted in enhanced safety standards and improved security processes.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Unit Security Manager/ SGT
U.S. Army
UAE & Fort Gillem, Ga
07.2021 - 03.2025
- Executed vulnerability assessments using Nessus and ACAS, escalating critical findings.
- Enforced DoD Risk Management Framework controls to achieve cyber compliance.
- Maintained RMF documentation in eMASS, streamlining ATO processes for military systems.
- Evaluated incident reports to determine appropriate corrective action.
- Developed, implemented and monitored security policies and procedures to ensure the safety of staff, customers and property.
- Assessed risk levels associated with specific tasks or operations within the organization.
- Audited security logs on a regular basis for accuracy and completeness.
- Provided security awareness training for over 150 personnel to enhance compliance.
- Facilitated incident response through forensic analysis and effective mitigation strategies.
- Acted as Alternate COMSEC Custodian and Assistant Security Manager for classified environments.
- Led security operations coordination during training events and exercises.
Operations Manager
ITS ConGlobal
Atlanta
07.2018 - 05.2023
- - Developed SOPs for endpoint security; led SOC simulations and cyber hygiene training
- - Conducted mock audits and threat categorization using MITRE ATT&CK
- Implemented safety protocols to enhance workplace safety and compliance standards.
- Monitored and improved efficiency of processes, team performance, and customer service.
- Directed operations staff by providing guidance, training, and support in order to meet company objectives.
- Ensured compliance with safety regulations and maintained a safe work environment for all personnel.
- Presented performance and productivity reports to supervisors.
- Aided senior leadership during executive decision-making process by generating daily reports to recommend corrective actions and improvements.
Dispatcher Coordinator
Marshall Williams Enterprise Trucking
Conyers
12.2013 - 01.2018
- Resolved driver issues and concerns during transport operations to ensure efficiency.
- Optimized delivery timelines by managing dispatch schedules effectively.
Education
Cyber & Network Security Certificate - Information Technology
Georgia Institute of Technology
Atlanta, GA01.2023
Bachelor of Arts - Interdisciplinary Studies
University of Southern Mississippi
Hattiesburg, MS12-2019
Skills
- SIEM (Splunk, Insight IDR) and Nessus
- Vulnerability assessment
- Incident response and threat categorization
- Network protocols and access control
- Active Directory management
- NIST 800-53 compliance
- Cybersecurity training
- PowerShell scripting
- eMASS and ACAS
- DISA STIGs
- Risk management framework
- Security policy development
- Information security
- Access control
Certification
- CompTIA Security+ (Active)
- Intro to INFOSEC
- In Progress: Cisco CCNA, Microsoft AZ-900
Timeline
Unit Security Manager/ SGT
U.S. Army
07.2021 - 03.2025
Operations Manager
ITS ConGlobal
07.2018 - 05.2023
Dispatcher Coordinator
Marshall Williams Enterprise Trucking
12.2013 - 01.2018
Cyber & Network Security Certificate - Information Technology
Georgia Institute of Technology
Bachelor of Arts - Interdisciplinary Studies
University of Southern Mississippi
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