Open To Work
Hi, I’m
Marissa James
Cybersecurity
Warner Robins,GA
Overview
17
years of professional experience
1
Certification
Work History
AstrionWarner Robins
ISSM/Cybersecurity Specialist
12.2025 - Current
Job overview
- Support the execution of Cybersecurity RMF and A&A for the SOF/PR aircraft platforms and mods.
- Maintain Assessment and Authorization (A&A) documentation required for compliance.
- Track the accreditation status of the aircraft system(s) and submit accreditations.
- Assessed security architecture's effectiveness in defending against potential threats.
- Evaluate the technical implementation of the security design.
- Support the identification of current and future cyber analyses.
- Assisted in Platform Information Technology (PIT) Assessment and Authorization (A&A) processes by reviewing documentation and ensuring compliance.
- Conducted site audits to validate architecture analysis, security requirements, and controls; verified mitigation actions, witnessed cybersecurity testing and evaluation, and supported approvals for IATT, IATO, and ATOs.
- Compiled and communicated findings and recommendations from cybersecurity site audits.
Pace Center for GirlsJacksonville
Azure Hybrid Lead System Engineer
10.2024 - 07.2025
Job overview
- Managed Office 365, Azure Entra, Intune, and Exchange environments, ensuring security, compliance, and system performance.
- Led enterprise system upgrades and deployments, developing structured plans for execution, governance, and accountability.
- Designed, implemented, and optimized IT infrastructure and communication technologies to support organizational growth and efficiency.
- Collaborated with Technology Services team to design and execute IT strategies, enhancing organizational efficiency and scalability.
- Developed unified communications systems, improved infrastructure, and implemented a standardized IT architecture to support operational consistency across 22 locations.
- Established and enforced IT policies for security, data access, and Office 365 usage, ensuring compliance and operational efficiency.
- Implemented backup and disaster recovery strategies, minimizing downtime and guaranteeing business continuity.
- Provided advanced troubleshooting and support for complex technical issues, mentoring teams and training end users on best practices.
- Led the foundation for sustainable growth by developing and implementing technology and infrastructure strategies aligned with Pace's Mission and Guiding Principles.
Sentient Digital Inc.Norfolk
Cybersecurity Team Lead
10.2022 - 09.2024
Job overview
- Attended requirement meetings and stakeholder discussions to identify and define all cyber engineering requirements for the modernization of the MSC Maritime Shipboard Enterprise Network.
- Created and maintained cybersecurity documentation aligned with Risk Management Framework (RMF), National Institute of Standards and Technology (NIST) guidelines, and assessment and authorization (A&A) requirements to support Authority to Operate (ATO) for existing systems and modernization efforts within afloat enterprise network.
- Oversaw creation, testing, and deployment of processes and tools for developing secure applications that meet cybersecurity requirements outlined in project guidelines.
- Monitoring the lifecycle and modernization requirements of multiple IT systems, to verify the implementation of ongoing vulnerability assessment & remediation efforts following the System Configuration Management Plan defined in all project requirements.
- Creating and reviewing relevant cybersecurity test procedures, applying best security practices (e.g., STIGs), and monitoring and enforcing policies and guidance from the DoD to reduce cybersecurity risks to existing systems and all modernization task orders.
- Collaborated with systems engineers and network engineers to ensure implementation of cybersecurity controls throughout IT system lifecycle and documented processes in eMASS during Certification & Accreditation (C&A), A&A, PRA to support security control development, implementation, execution, and reporting.
- Evaluated compliance with RMF controls for a DOD system, created test procedures, executed the tests, and recorded results in eMASS.
- Collaborating with Systems Administrators to conduct compliance and vulnerability assessments of IT systems utilizing automated DOD cybersecurity tools including Assured Compliance Assessment Solution (ACAS), Secure Content Automation Protocol (SCAP) Compliance Checker (SCC), and DISA STIG Viewer.
- Required to Interpret Information Assurance (IA) and CS policies and apply these to manage risks. Provides advice and guidance to ensure adoption of and adherence to IA/CS architectures, strategies, policies, standards, and guidelines.
- Executed configuration management activities, focusing on documenting and guiding the cybersecurity implications related to proposed CM changes.
- Military Sea Lift Command
United States GovernmentNorfolk
Technical Team Lead
12.2021 - 10.2022
Job overview
- Directed multiple complex projects with a focus on enterprise architecture, technology upgrades, and the implementation of emergent technologies and business applications.
- Managed virtual, domain, and networking teams to ensure the highest availability of intelligence products on the NIODB network, ensuring fleet intelligence capabilities.
- Direct the management, development, and troubleshooting of all enterprise network servers, and network devices across two security enclaves in a virtual environment supporting Naval fleet.
- Led the completion of over 5,000 STIG line items across two security enclaves to enhance network integrity and hardening, ensuring compliance with DOD standards.
- Informed chain of command about real-time network outages and status, enhancing network reliability.
- Assessed information systems to confirm compliance with legal, regulatory, contractual, and agreed standards/policies and alignment with the overall strategy.
- Provided specialized advice to governance stakeholders to address any non-compliance issues.
- Oversaw training initiatives at Naval Information Warfare Training Group
- Facilitated training sessions, improving team skills and knowledge of new technologies.
- Managed project timelines and ensured adherence to government regulations and standards.
- Implemented best practices for software development and system integration processes.
- Evaluated emerging technologies to improve operational efficiency and service delivery.
- Oversaw quality assurance processes, ensuring high standards in project outcomes.
- Mentored junior staff, providing guidance on technical challenges and career development.
- Identified areas of improvement in existing systems and proposed solutions or alternatives.
- Ensured compliance with industry standards, regulations, policies, and procedures.
- Worked closely with other teams to ensure successful integration of products.
- Delegated responsibilities to team members according to their capabilities.
- Developed training materials for team members to improve technical skills.
- Maintained up-to-date knowledge of technologies related to the projects being worked on by the team.
- Fostered a culture of continuous improvement, encouraging innovation and efficiency.
Alion Science and TechnologyNorfolk
System Engineer
12.2018 - 12.2021
Job overview
- Led the administration, maintenance, and cybersecurity defense of the Navy's Enterprise Tactical Training Network (NETTN) client and server infrastructure to support enterprise-wide modeling and simulation application development and delivery.
- Performs Microsoft Windows server administration, manages GPOs, creates/modifies DHCP reservations, manages DNS, performs patching and STIG'ing, as well as authors standard operating procedures, trains junior personnel, and performs Tier 3 technical support.
- Collaborated with Enterprise Engineering team to update, monitor, and maintain servers and workstations across the enterprise.
- Created and maintained ACAS servers and scanners to meet security protocol implementation standards across the WAN.
- Developed accreditation package standards and protocols to maintain network authorization and managed all accreditation documentation.
- Established Devnet Tier one Vstack and WAN, enhancing SIGINT training capabilities for Fleet Forces training.
- Contributed to projects at Naval Surface Warfare Center Corona
Cambridge International Systems IncorporatedNorfolk
Network/System Engineer
02.2018 - 12.2018
Job overview
- Engineered and tested Windows 10 SHB images for MSC fleet deployment across AR2, ACGv2, and PPTS systems, ensuring compliance with DoDD 8500.1/DoDI 8500.2 specifications.
- Administer system and network updates IAW Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs).
- Delivered development, software integration, and validation testing for MSC Shipboard Management Information Systems (SMIS) Afloat in classified and unclassified environments, utilizing necessary COTS and GOTS applications.
- Delivered project deliverables timely per project plans, adapting to schedule changes and providing immediate network and hardware testing documentation.
- Perform a comparative analysis of network and system management, monitoring, and security solutions.
- Project deliverables include SOPs, System Design Specifications, System Requirement Specifications, and Risk Vulnerability Traceability Matrix documentation.
- Conducted ACAS scans and addressed security issues for MSC systems.
- Working knowledge of the Enterprise Project Management 2.0 process.
- Military Sea Lift Command
United States Navy – Active DutyNorfolk
09.2009 - 02.2018
Job overview
- Highly skilled in the management and troubleshooting of a range of military information systems, with expertise in VLANs for network segmentation, VMware for virtualization, and both Unix and Linux operating systems.
- Proficient in the operation and maintenance of the Global Command and Control System – Maritime (GCCS-M) and the Automated Digital Network System (ADNS), ensuring seamless communication and data integrity across military operations.
- Designed and implemented robust security protocols to effectively safeguard sensitive data, including classified information and personal identifiable information (PII).
- Conducted regular audits and thorough risk assessments to ensure compliance with stringent military standards and regulatory requirements.
- Collaborated with cross-functional teams to develop security training programs, raising awareness and preparedness among personnel regarding potential cyber threats and best practices in data protection.
- Provided practical training and support to team members on IT systems and software applications, improving overall operational efficiency.
- Oversaw the upgrade and integration of Windows 10 and new IT systems, ensuring seamless transitions and minimal disruption to operations and providing increased cybersecurity posture through upgrading all hardware and software.
- Skilled in analyzing and interpreting data to inform decision-making, using software tools to track performance metrics and logistics operations.
- Trained and mentored junior personnel to foster teamwork and accountability, enhancing mission readiness, while leading key initiatives that improved operational efficiency through the implementation of streamlined processes.
- Recognized for outstanding leadership and problem-solving abilities in high-pressure environments.
- Ensured compliance with military standards and protocols while evaluating operational needs and deploying targeted strategies to meet organizational objectives.
- Demonstrated a strong commitment to values such as excellence, integrity, and continuous improvement throughout the career.
- Multiple Commands
Education
Networking and Cybersecurity
Bachelors of Science
01-2021
Cisco Junior College
Associate of Science from General Studies
01-2008
Skills
- Cloud Security
- Cybersecurity Operations
- Incident Response
- Security Compliance
- Microsoft Azure
- Hyper-V
- Vmware
- Security Policy Development
- Threat Intelligence
- Security Enhancement
- Security Reporting
- Risk management
- STIG and SCAP
- IT Security
- Risk management framework
- Security evaluation
- IT infrastructure management
- System administration
- Technical documentation
- Project coordination
- Team leadership
- Problem solving
- Application security
- Security risk assessment
- Certificate management
- Mobile device security
- Secure development
- SIEM
- Patch management
- Operating system security
- Web application security
- Data loss prevention
- Cybersecurity frameworks
- Firewall administration
- User behavior analytics
- Network access control
- Software vulnerability scanning
- Public key infrastructure
- Endpoint protection platforms
- Internet of things security
- Multi-factor authentication
- Security policies
- Virtualization security
- Security Frameworks
- License management
Work Preference
Job Search Status
Open to workWork Type
Full TimeContract WorkLocation Preference
RemoteHybridSalary Range
$90000/yr - $200000/yrCertification
- VMware Certified Associate, Data Center Virtualization, 2015
- Internetworking Technician Apprentice, 2014
- Computer Operator Apprentice, 2015
- Computer Programmer Apprentice, 2016
- CompTIA Security+ CE Certified, 2029
- CompTIA SecurityX, 2026
Timeline
ISSM/Cybersecurity Specialist
Astrion
12.2025 - Current
Azure Hybrid Lead System Engineer
Pace Center for Girls
10.2024 - 07.2025
Cybersecurity Team Lead
Sentient Digital Inc.
10.2022 - 09.2024
Technical Team Lead
United States Government
12.2021 - 10.2022
System Engineer
Alion Science and Technology
12.2018 - 12.2021
Network/System Engineer
Cambridge International Systems Incorporated
02.2018 - 12.2018
United States Navy – Active Duty
09.2009 - 02.2018
Networking and Cybersecurity
Bachelors of Science
Cisco Junior College
Associate of Science from General Studies