Thomas Davis
Full Stack Developer & AI Engineer
Summary
Full stack developer with 15+ years building products at startups and in open source — founder of JSON Resume, co-founder of cdnjs. These days I build agentic systems end to end: tool-calling copilots with LLM-as-judge gates, autonomous document pipelines on the Claude Agent SDK, a bitemporal knowledge substrate in Rust with Lean-verified invariants, and neural TTS/ASR for Aboriginal language revitalization. Also trained a GPT from scratch in TypeScript and Vulkan just to see how deep the rabbit hole goes. I ship fast and let user feedback steer.
Skills
AI & LLMs
AdvancedFrontend
AdvancedBackend
AdvancedCloud & DevOps
AdvancedArchitecture & Tooling
AdvancedLow-Level & GPU
IntermediateWork
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Independent (contract & advisory)Principal Engineer — AI (contract)2021-05-05 - present
- - Built an in-app AI copilot: multi-provider tool-calling agent (Anthropic + OpenAI via Vercel AI SDK) with data-query and mutation tools, an LLM-as-judge quality gate scoring every response on 8 dimensions, and SSE keep-alive for long agent streams
- - Designed an autonomous report pipeline — one model plans the document, Claude Agent SDK runs write it against live data, a second agent pass compiles branded slide decks via a 90+ layout PPTX compiler with chart rasterization and LaTeX PDF output, agents running in a parallel containerized fleet
- - Moved heavy analytics server-side (Bun + Hono behind a Go gateway): pure-function ports oracle-verified for numeric parity with the client engine, event-keyed Redis caching, validated at 20k+ entity scale
- - AI data enrichment: ingested a ~32-table public occupational dataset, LLM-classified it into customer data structures, and built persona-driven simulation commands generating realistic test data at scale
- - Shipped a standalone real-time collaborative app on Cloudflare Workers + Durable Objects — WebSocket presence, optimistic updates with server reconciliation, embedded AI assistant with client-side tool execution
- - Hunted down multi-user concurrent-edit data loss with a purpose-built integrity harness: truly-parallel mutation racing, event-chain fork detection, contract tests driving real client reducers against the live API
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TokenizedSenior Javascript Developer2020-05-05 - 2021-05-05
- - React
- - Redux
- - SCSS
- - Product
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BlockbidSenior Javascript Developer2018-03-01 - 2020-01-01
- - React, Apollo, Styled Components
- - Node.js / Rails
- - Docker / Heroku / GCP
- - Used Figma for design and UX work
- - Optimizing markets with tens of millions of rows using SQL.
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ListiumDeveloper2016-01-01 - 2018-01-01
- - Worked with Postgres, Redis and Dynamodb for storage.
- - Hosted on a mixture of Heroku Apps and EC2 servers.
- - Caching by Fastly and Cloudflare
- - Hybrid app supported on all platforms
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Electronic Frontier FoundationDeveloper2014-04-01 - 2016-01-01
- - Developed new tools for contacting congress
- - Brainstormed campaign ideas to raise maximum awareness about issues
- - Lots of social networking integration
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EarbitsCTO2013-03-08 - 2015-01-09
- - Managed a small team of developers and designers
- - Built the entire frontend application with Backbone.js
- - Transferred all of the infrastructure from Heroku to AWS
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Taskforce.isDeveloper2013-06-01 - 2016-01-01
- - Generated 37,000,000 banner views
- - 100,000 phone calls to congress
- - 500,000 emails
- - 250,000 signatures
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BackboneTutorials.comFounder2011-01-01 - 2014-01-01
- - Over two million unique visitors a year
- - 25,000+ ebook downloads
- - 300,000+ Youtube views
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EphoxFront-end Developer2011-01-01 - 2012-06-01
Education
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The University of QueenslandBachelors in Software Engineering (incomplete)2008-02-12 - 2009-12-12
Projects
JSON Resume is the open standard for resumes as JSON. I founded it in 2014 and still run it. What started as a schema is now an ecosystem: a registry that renders any resume in 52 themes, AI job matching that embeds your resume and scores it against live Hacker News hiring posts, an in-browser editor, an MCP server that updates your resume while you code, and a Claude Code skill that interviews you and hunts for jobs on your behalf. The whole thing lives in one open source monorepo.
An evidence-first knowledge substrate for LLM-scale extraction: a bitemporal, paraconsistent claim store (Rust + Postgres) that keeps contradictory claims forever, anchors every claim to character-level source spans, and re-ranks by corroboration on an E0-E5 epistemic ladder instead of deleting on conflict.
The Tool Package Manager for AI Agents. An open-source registry and execution platform that automatically discovers, validates, and runs npm packages as AI agent tools via MCP, SDK, or CLI.
Self-evolving AI Discord bot with 80+ specialized tools, multi-database architecture, and autonomous development capabilities. Built with Vercel AI SDK, Discord.js, and Next.js.
From-scratch GPT training and inference system built in TypeScript with a hand-written C Vulkan addon for GPU compute. No PyTorch or TensorFlow — custom tensor backend, autograd, tokenizers, training loop, and inference engine.
AI coding validator with semantic guardrails. A development-time validator that lets AI agents write code freely while maintaining consistency through domain semantics and multi-layer validation.
Adversarial scientific-paper replication engine. Extracts a paper's claims into a statement graph, compiles them into typed replication units — metric recomputes, dataset integrity checks, equation checks, simulations — executes them, and emits verdicts: reproduced, contradicted, or fragile.
CLI that generates LLM-optimized variants of your functions, validates them for functional equivalence, and benchmarks them across providers. Published on npm as llm-benchmark.
Co-founded cdnjs, a free CDN for the JavaScript libraries Google's CDN didn't carry. Community-moderated and open source; we partnered with Cloudflare, who now runs the infrastructure.