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Hap Nesbitt
Independent AI Infrastructure Engineer & Systems Architect
Builder of Arc Codex and the A.R.C. cognitive security framework. Available for contract engagements.
Consulting Expertise
Cognitive Security
Creator of the A.R.C. framework — 48 cognitive anti-patterns for detecting manipulation, disinformation, and adversarial narratives at scale.
Email Authentication
SPF, DKIM, DMARC, BIMI architecture and deployment. Self-hosted MTA hardening, PTR alignment, and deliverability forensics.
AI Infrastructure
Agentic LLM pipelines, Ollama/local inference, Redis-backed orchestration, ensemble architectures. Production systems on bare metal.
Systems Architecture
30+ years Linux/UNIX. IAM, entitlement automation, OpenShift CI/CD. Former Proofpoint (employee #10), Wells Fargo, Morgan Stanley, J.P. Morgan Chase.
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