Shaun Marshall

Agentic AI Developer and Systems Architect

Independent

Independent design and development of governed knowledge tools that support human judgment through inspectable evidence, clear authority, and bounded agent access, alongside full-time employment. AI coding agents assist implementation; I set requirements, review changes, test behavior, and decide what ships. GKOS remains developmental; independent validation and full conformance qualification remain ahead.

• Founded and edit GKOS, a public AI governance specification that turns provenance, context, authority, review and authorized agent use into testable contracts and machine-readable records. The v0.82.1 edition (25 September 2026) has 62 permanent requirements and 28 gate codes. repositoryv0.82.1 release Public artifact

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• Directed the schemas and assurance tooling: deterministic context replay, fail-closed validation, and a mutation-test corpus covering all 28 gate codes, run in CI on Linux and Windows. Releases state their coverage and conformance limits. conformance docsclaims policy Public artifact
• Leads development of GKOS-Engine, an Apache-2.0 TypeScript library that validates GKX records, builds deterministic knowledge graphs from Markdown and serves agents through ten credential-bound, read-only MCP tools (latest release 2.1.1). repository2.1.1 release Public artifact
• Built Kosmos-Oden on GKOS-Engine: an Obsidian plugin and standalone viewer that draws a Markdown vault as a navigable 3D map (release 0.8.2). Kosmos-Oden repo Public artifact
• Runs a self-hosted lab of open-weight language models and AI agents that share memory records, task files and a message broker. AI coding agents do much of the implementation; I set the design, review the changes, run the tests and decide what is released. Self-reported

Founder, President and CTO

Florida Armored Combat Inc.

Founded a 501(c)(3) nonprofit; statewide governing body for armored combat (buhurt).

Founded and leads Florida Armored Combat, a 501(c)(3) nonprofit, applying leadership, business orchestration, technology integration, event planning, AI governance, and cybersecurity to support member teams and community activities.

• Founded Florida Armored Combat Inc. as a 501(c)(3) nonprofit and leads the organization as President and Chief Technology Officer (CTO).

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• Grew the organization from three teams to eight city teams and three collegiate teams, and led the formation of a statewide female team. teams page
• Supports charitable events, STEM programs, K-12 and collegiate education programs, and free training for the public; coaches and recruits new fighters.
• Significantly reduced technology costs by building and running the organization's website and systems with open-source software, and trained volunteers to use open-source frameworks in their work.
• Built AI agents to augment the volunteer workforce and devised governance protocols defining what agents can and cannot access or do with the organization's knowledge and infrastructure.

Senior Systems Analyst, Executive Support

Walt Disney World

Atos assignment: October 2013–November 2022; Disney employee: November 2022–Present.

Provides technology support and advice to Walt Disney World executives at vice-president level and above and WDW Legal. Served through Atos from October 2013 to November 2022, then joined Walt Disney World Enterprise Technology as an employee. Work spans enterprise support, secure remote access, records and knowledge migrations, and coordination with information security teams. Helps executives, Legal staff, and colleagues work reliably and securely, with less disruption.

• Exported the team's OneNote knowledge base to Markdown with attachments intact, shared the export and method with the team, and used a copy for a Confluence migration with an approximately 95% successful import. Documented the migration's limitations.

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• Added an experimental analysis of relationships between notes, including which documents supersede others, so current material is easier to find in search. It is non-deterministic, so it is used as an aid to human review.
• Wrote the policy for migrating WDW Legal records from several sources to NetDocuments and coordinated LegalOps training on retention and retrieval.
• Recovered lost or fragmented data and reports for clients on several occasions, saving from about an hour to several days of rework each time; this work contributed to a Disney Recognition award in 2026.
• Liaison between executives and Global Information Security; advised WDW Legal on modernizing its BYOD policy and forensic investigation methods.
• Moved WDW Legal executives, paralegals and support staff to secure remote work in 2020 using Citrix and two-factor authentication, procured equipment for long-term remote work, and strengthened home networks for the added traffic.
• Located, organized and migrated WDW Legal PST archives to Exchange Online, with access granted to the correct attorneys and paralegals.
• Developed and delivered training to counter spear-phishing campaigns; worked with eDiscovery on preserving digital evidence and records.
• Proposed to leadership a review of WDW Legal's digital assets based on confidentiality, integrity and availability (CIA triad) principles.
• Supported the WDW Legal move from eDOCS to NetDocuments (in progress in 2019).
• Administered accounts, file and system access, and conferencing: Active Directory and Azure AD, Exchange Online, SCCM, OneDrive, BlueJeans, Zoom and Polycom.
• Subject-matter expert for Disney IT support and field teams on PC, Mac, application and network issues; individual and group instruction for executives and support staff.

IT Consultant

Shaun Marshall Consulting

Current work through LuSaur Technology, LLC; independent consulting since 2010.

Practical IT, cybersecurity, infrastructure, and AI integration suited to an organization’s people, resources, and needs. Current work through LuSaur Technology, LLC builds on an independent consulting practice begun in 2010.

• Designs and deploys segmented networks with remote access: OPNsense and pfSense firewalls, Cisco switching and Proxmox virtualization.

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• Builds and hosts websites on the LAMP stack and WordPress; plans and runs hardware and software migrations.
• Writes business-operations, disaster-recovery and information-security policies for each client, and teaches owners how to run their networks safely.

Windows 7 Migration Team Lead and Technical Liaison

CNSS Inc., for Walt Disney World

Field team for moving Walt Disney World property and offices from Windows XP to Windows 7.

• Led four contractors and worked with the HyperCare team supporting the move from Windows XP to Windows 7 across the Walt Disney World property and supporting offices.

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• Scheduled deployments with off-site developers, directors and department heads, deploying department by department to keep downtime low.
• Enforced enterprise PC standards, fixed application and network issues, and helped test white-box applications and equipment.

SME Support Analyst

Connextions Inc.

Technical support account in a contact center.

• Technical mentor for call-center agents on a technical support account; trained them in troubleshooting and resolution.

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• Wrote and updated support articles in the company wiki; provided first- and second-level support with DameWare and Active Directory.

Systems and Support Analyst

TEKsystems, for Roetzel & Andress

Support for attorneys and staff at a law firm's Florida offices.

• Supported attorneys and staff on Citrix, Westlaw and Microsoft Office 2007; managed accounts, printers and remote access with Active Directory, Remote Desktop and SMS.

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• Helped build a Citrix server environment for the firm's Orlando, Fort Lauderdale and Naples offices.

Senior Analyst

CompuCom Inc., for Walt Disney World

Disney PC Migration project.

• Proposed an in-house help center and remote-assistance service for the Disney PC migration, then set it up and managed it; it worked with Disney IT to resolve deployment and transition issues.

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• Wrote training material for new help-center technicians and trained them on Active Directory, SMS, Ghost imaging and Remote Desktop.
• Ran needs assessments and deployment scheduling with ACS and Disney managers and network engineers; provided basic data recovery when needed.

Senior Field Service Technician

CACI and TEKsystems, for U.S. Department of the Navy, NAVAIR Orlando

Promoted from Field Service Technician.

Department of Defense contractor on the Navy/Marine Corps Intranet (NMCI) at Naval Air Warfare Center Training Systems Division.

• Provided hardware and software support for over 1,100 clients on the Navy/Marine Corps Intranet (NMCI).

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• Led the research that resolved a Windows Installer failure blocking Microsoft Office deployments on Windows 2000 workstations (2003). Deployments continued on schedule, and the prime contractor, EDS, avoided an SLA miss carrying a penalty of more than $200,000.
• Wrote documents and hot-fixes that were used at site and enterprise level within NMCI.
• Assisted DoD Information Assurance personnel with forensic investigations on the Navy network, gathering evidence within state and federal law.
• Tools: HEAT and Remedy ticketing, Tivoli remote control, Active Directory and SMS for accounts and software packages.
• Command Master Chief Award for Excellent Service, Naval Air Warfare Center Training Systems Division (2001).

Technical Project Manager, NMCI Assessment and Planning

AERA Inc., for U.S. Department of the Navy, NAVAIR Orlando

Assessment and planning stage before the NMCI transition at NAVAIR Orlando.

• Hired and supervised 15 contractors for the assessment and planning stage before NMCI, working with the local Navy command and DoD staff.

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• Wrote standard operating procedures and a lessons-learned list used at other naval bases preparing for NMCI; finished almost one month ahead of schedule.

Electronics Lab Manager, Department of Nursing

University of Central Florida

Computer lab and simulation equipment for the Department of Nursing.

• Designed, assembled and ran the department's networked computer lab, with testing stations, a file and print server and a Virtual IV injection-simulation station.

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• Supported nursing faculty, staff and students; wrote a best-practices and lab-maintenance guide for later lab managers.

Help Desk Representative

University of Central Florida

Campus help desk.

• Supported students and staff on campus email clients (GroupWise, Outlook and Exchange, PINE) and network access.

Safety Engineer and Computer Specialist

NASA John F. Kennedy Space Center, Safety and Mission Assurance (RT-SRD-2A, EIC-A)

Student employment in Safety and Mission Assurance.

• Maintained the Pressure Vessels and Systems (PV/S) database and coordinated a safety-recertification schedule with the Center's major contractors.

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• Designed a web portal where contractors could identify their own pressure vessels and systems and check them against the Center's records.
• Member of the Shuttle Upgrades Liquid Flyback Booster study (1997): reusable kerosene and oxygen engines, specific impulse and maintenance time between launches.

Student Assistant, LEAD Scholars Program

University of Central Florida

Program office of the LEAD Scholars student leadership program.

• Student assistant in the LEAD Scholars Program office while a member of the program.