Jay Deaton

Senior Full-Stack Engineer · Lincoln, NE

I build and run production software end to end: inventory and point-of-sale apps, APIs, databases, and integrations with Shopify, eBay, Stripe, and AWS. For 10+ years I've been the core engineer behind a buy-sell-trade commerce business, and I'm quick to pick up new platforms, from native iOS to AI. On the side, I maintain 25+ open-source React Native packages.

Open to senior full-stack roles: remote, hybrid, or on-site.

Email Resume LinkedIn GitHub npm

Experience

Infinite Token · Full-Stack Engineer & Co-Founder

2016 - Present

Core engineer on a 3-6 person team building our commerce platform: 6 apps including POS, inventory, and data sync, plus a central API and databases serving 25 staff and tens of thousands of customers.
Built REST APIs and auth in Node.js/Express, plus business apps in React, React Native, and Electron, owning features from planning and architecture through deployment and monitoring.
Integrated Shopify, eBay, Google, AWS, and POS hardware into one system, and implemented Stripe payments online and in store, including Stripe Terminal card readers.
Wrote native Swift modules connecting Bluetooth and Zebra label printers to React Native apps.
Planned and ran schema and data migrations on live production databases with no downtime or data loss.
Developed an AWS Lambda service that resizes product images on demand and caches the results in S3.
Building MediaEncyclopedia, an AI product-data system on the Anthropic API and Supabase.
Led the migration to TypeScript and introduced Jest unit testing and org-wide linting standards.

Gameroom · Operations Manager

2013 - 2016

Ran daily operations for a ~30-person buy-sell-trade retailer across sales, e-commerce, and repair, including hiring, coaching, and cash-handling controls.
Built VBA automation that cut payroll processing from 4 hours to 20 minutes, and eBay inventory tooling that saved ~20 hours a week and cut listing time ~75%.

Live Web Tools

MapFolio

Build custom maps: drop pins, draw routes, add captions, then print to PDF or share the whole map in a link.

Source

TrimBox

Gmail inbox cleaner: finds bulk senders, with one-click unsubscribe and bulk archive or trash.

Source

SnaPDF

Save ChatGPT and Claude conversations as searchable PDF or plain text, virtual scrolling and all.

Source npm

GraPDF

Merge every PDF linked from a webpage into one downloadable booklet.

Source npm

Pixelated

Pixelate images with retro palettes, block shapes, and dithering, in the browser or from the CLI.

Source npm

Open Source

@rific

14 Expo and React Native utility packages used across all of my apps.

@rific/updater @rific/sync @rific/auto-paper @rific/scroll-view @rific/scanner @rific/toaster

@tastic

11 game-engine packages: game loop, physics, input, split-screen, HUD, profiles, achievements, and cards.

@tastic/hud @tastic/physics @tastic/input @tastic/split-screen @tastic/achievements @tastic/cards

Games

Pass-and-play games for iOS, Android, and web, built with Expo and Skia on my @tastic packages, with a native Swift module that suppresses iOS edge gestures during play. App Store and Google Play release in progress.

BoxHockey

Turn-based tabletop hockey with flick, slingshot, and push shots, and a CPU that picks its shots by simulating them through the physics engine.

Solitaire

11 solitaire games on a shared TypeScript card engine, backed by 1,770 tests.

LightCycles

Tron-style light cycles with a flood-fill CPU, six powerups, and five arenas.

Hangman

19,700 puzzles across 58 packs, hand-drawn art styles, and Pass & Play.

Also: Snake, Pong, Swirlio, AirHockey

Private Projects

Lumber

End-to-end encrypted cloud logging: HTTP and WebSocket servers, background workers, MongoDB, mobile, desktop, and web clients, and SDKs for Node, Python, and Swift. All decryption and search happen on the client.

MediaEncyclopedia

AI product-data system on the Anthropic API and Supabase, with marketplace sync to eBay and Shopify.

The code is private, but I'm happy to walk through the architecture.

Skills

Languages: TypeScript, JavaScript, Swift, Python, SQL, HTML/CSS
Frameworks: React, React Native, Expo, Node.js/Express, Electron, Vue/Nuxt
Platforms: iOS, Android, macOS, Linux, Expo EAS, Xcode
Cloud & Data: AWS (Lambda, S3), Supabase, PostgreSQL, MongoDB, SQLite, Docker, Vercel, Heroku
Integrations: Git, Jest, REST, GraphQL, WebSocket, Bluetooth, Shopify, eBay, Stripe, POS hardware, Google and Anthropic APIs

Contact

Open to senior full-stack roles: remote, hybrid, or on-site. The fastest way to reach me is email.

jayrdeaton@gmail.com