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seanhudson/README.md

Sean Hudson

Digital innovation & product executive who still builds.

I work at the intersection of product, technology, customer experience, design, and business strategy — usually where there's an ambiguous problem and something new needs to exist.

I currently lead customer experience, digital product, and innovation initiatives at AAPC. I also remain hands-on with architecture, UX, prototyping, software development, and AI-enabled products.

What I do

I tend to work from idea → working product → scale.

That often means:

  • identifying an unmet customer or business need
  • rapidly designing and building a proof of concept
  • validating whether the idea is worth pursuing
  • establishing the architecture and product direction
  • transitioning proven concepts to teams for production and scale

What I'm working on

Two current products and an open-source tool where I explore how AI, product design, and modern software architecture come together.

Vitros

vitros.app

The Vitros home page beside the iOS app's home and habits screens.

An API-driven consumer platform spanning web, iOS, and Android focused on journaling, habits, activity, health data, and personal development.

I designed and built the platform end-to-end, including:

  • product strategy and UX
  • web and mobile applications
  • backend and API architecture
  • subscriptions and integrations
  • Apple Health / Health Connect
  • AI-powered conversational experiences
  • recommendation systems
  • agentic workflows
  • automated testing and production delivery

Vitros is also where I experiment with how AI changes the way products are designed, engineered, tested, and operated.

NextGig

nextgig-alpha.vercel.app · private alpha

The NextGig home page with today's matched roles, each with a match score and fit.

An AI-powered job-search agent that continuously searches, evaluates, and ranks opportunities against a user's career profile, preferences, and constraints.

I designed and built the platform end-to-end, including:

  • conversational career profiling and preference learning
  • automated daily job discovery and verification
  • probabilistic screening and rubric-based job scoring
  • AI-generated application support grounded in résumé evidence
  • interview practice and career coaching workflows
  • scheduled search and weekly review agents
  • multi-model routing with automatic provider failover
  • eval-driven model selection based on quality, cost, and latency
  • usage-based credits, rate limiting, transactional email, and SaaS infrastructure

Built with Next.js 16, React 19, TypeScript, Prisma/Postgres, Vercel AI SDK, Resend, Vitest, and Playwright.

NextGig is also an experiment in making AI systems more operational: not just generating answers, but running repeatable workflows, making ranked decisions, and improving those decisions through evals.

Evalkeeper

github.com/seanhudson/evalkeeper · open source · @crowandraven/evalkeeper on npm

Evalkeeper's model board: each model's score, serious mistakes, time, and cost, with the suggested live and fallback models and their reasons.

An eval harness for the AI features in a TypeScript app. For each feature, it keeps an answer key people confirm, runs any model against it, and compares models on accuracy, serious mistakes, cost, and speed.

I extracted it from NextGig, where it chose the models for 20 AI features. It includes:

  • answer keys that people own, with model drafts kept provisional until confirmed
  • per-model tests with time and cost for every answer
  • checks graded as serious or minor, with partial credit
  • a model board with bootstrap comparisons against the live model
  • suggested live and fallback models, each with its reason
  • staleness tracking when prompts, schemas, cases, or graders change
  • versioned model switches with one-click rollback
  • a weekly drift check on every live model
  • user feedback that turns into draft test cases
  • probability and calibration scoring for decision models

Packages for the Vercel AI SDK and Prisma, with an example Next.js app that runs without API keys.

Evalkeeper is my answer to a simple question: when a provider changes a model or a cheaper one ships, how do you know, on evidence, which model each feature should run on?

AI + product experimentation

Much of my current work explores:

  • conversational product experiences
  • AI agents and reusable tool/skill architectures
  • retrieval and recommendation systems
  • multi-provider AI architectures and fallbacks
  • AI-assisted product development
  • AI-assisted testing and QA
  • rapid prototyping
  • human-in-the-loop workflows

How I work

A few principles have followed me through product, technology, design, and leadership.

01 — You can't fake curiosity

Curious people ask uncomfortable questions because that's how you find the real problem.

02 — Be intentional

Add value deliberately. Make clear decisions, move with purpose, and adjust course when the evidence changes.

03 — Working software rules

Documentation and process matter, but working software and fast iteration matter more.

04 — Communication is paramount

Trust, communication, and collaboration build better products than process alone.

05 — Less is usually more

Do fewer things, better. Better products beat bigger products, and focus beats feature creep.

06 — Be prepared for progress

Show up ready to move the work forward. Momentum is a shared responsibility.

Current toolbox

TypeScript · Next.js · React · React Native · Expo · Node.js · Postgres · APIs · Vercel

LLMs · RAG · Agents · AI SDKs · Vector Search · Automated Testing

The tools change. Shipping useful things is the point.

Elsewhere

LinkedIn · Vitros · NextGig · Evalkeeper · Sean Hudson Studio · Crow and Raven

Pinned Loading

  1. evalkeeper evalkeeper Public

    An open-source eval harness for TypeScript apps: test each AI feature against answers people confirm, compare models on accuracy, cost, and speed, and choose the live model on evidence.

    TypeScript 1

  2. PHP-Wrapper-for-CKAN-API PHP-Wrapper-for-CKAN-API Public

    1 5