Marselles Jefferson, CISM

Marselles Jefferson, CISM, has a diverse range of work experience in the field of cybersecurity. Marselles is currently working at Freedom Learning Group as a Cyber Security Content Evaluator and Question Author, where they review technical content for accuracy and clarity.

Prior to this, Marselles worked as a Business Owner starting from April 2018. Marselles also served as a Cyber Security Lead at SAIC from December 2020 to August 2022, where they led the Vulnerability Management program and used Tenable Nessus ACAS scanners to identify and remediate vulnerabilities.

Before that, Marselles worked as a Cyber Security Systems Administrator (ISSO) at HII Technical Solutions from September 2019 to December 2020. In this role, they used Tenable Nessus ACAS Scanner and McAfee ESM/SIEM to investigate and remediate unauthorized activities.

From July 2017 to September 2019, Marselles worked for the US Federal Government as an IT Specialist (Infosec/SysAdmin). There, they managed the vulnerability management effort for over 3000 servers and ensured the implementation of Security Technical Implementation Guides.

Additionally, Marselles has experience as a Lead Technical Support Engineer at Shipcom, where they implemented information security solutions at healthcare facilities. Marselles also worked as a Field Service Engineer (PMO) at NCI Information Systems, Inc., supporting cyber security and network defense projects.

Earlier in their career, Marselles served as a Windows System Administrator at General Dynamics Information Technology, where they focused on keeping the infrastructure secure and compliant. Marselles also worked as a Field Technician supporting the Colombian military on geospatial information systems.

Marselles began their career as a Field Service Technician at Signature Government Solutions and a Computer System Technologist, Sr. at Raytheon.

With a comprehensive background in cybersecurity and information technology, Marselles Jefferson, CISM, brings valuable expertise to various roles in the field.

Marselles Jefferson, CISM has a Master of Science degree in MIS/Solutions Architect from Bellevue University. Prior to that, Marselles also obtained a Bachelor of Science degree in Management Information Systems from the same institution. In terms of certifications, Marselles holds a Certified Information Security Manager (CISM) certification from ISACA, which was obtained in March 2023. Additionally, Marselles has obtained a CompTIA Security+ CE certification from CompTIA in August 2018 and a Project Management Professional (PMP®) certification from the Project Management Institute in August 2011. Although Marselles has listed other certifications such as CompTIA Network+, CompTIA Project+, IT Information Library Foundations Certification (ITIL), Microsoft Certified IT Professional (MCITP), and Microsoft Certified Systems Administrator (MCSA), specific information regarding the obtained months and years for these certifications is not available.