Skill group

AI and automation: where it was used

Agentic AI Developer and Systems Architect

Independent · 2025 – Present

  • 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.
  • 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.

Senior Systems Analyst, Executive Support

Walt Disney World · Oct 2013 – Present

  • 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.
  • 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.

IT Consultant

Shaun Marshall Consulting · Feb 2010 – Present

  • Designs and deploys segmented networks with remote access: OPNsense and pfSense firewalls, Cisco switching and Proxmox virtualization.
  • Builds and hosts websites on the LAMP stack and WordPress; plans and runs hardware and software migrations.

Safety Engineer and Computer Specialist

NASA John F. Kennedy Space Center, Safety and Mission Assurance (RT-SRD-2A, EIC-A) · 1996 – 1998

  • Maintained the Pressure Vessels and Systems (PV/S) database and coordinated a safety-recertification schedule with the Center's major contractors.
  • Designed a web portal where contractors could identify their own pressure vessels and systems and check them against the Center's records.

GKOS: AI governance specification and assurance engineering

Developmental specification

  • Public developmental specification; executable mechanism-level checks available. Complete profile qualification and independent interoperability validation remain outstanding.

GKOS-Engine and Kosmos-Oden: governed knowledge tooling

Open-source releases

  • GKOS-Engine release 2.1.1 (18 August 2026); 2.2.0 on main pending release qualification. Kosmos-Oden release 0.8.2 (9 September 2026).

Team knowledge base migration: OneNote to Markdown to Confluence

Completed internal migration

  • Export complete and shared with the team; Confluence import approximately 95% successful; limitations documented.