Engineering Leader · Mobile Architect · AI/LLM Tooling
NYC · 17+ years iOS · 3 US patents · Creator of Provenance EMU

I started writing iOS apps before Apple released the SDK, hacking together Objective-C on jailbroken hardware. Currently L4 Mobile Engineer on Wayfair's App Infrastructure team. Previously Director of iOS Platform at NewsCorp (8-region global team — WSJ, NY Post, Times UK, Knewz). Hold 3 US patents from Sense Networks. Creator of Provenance EMU — the most popular open-source multi-system emulator for iOS, tvOS, and macOS — now on the App Store with 388k+ downloads.

💼 Considering 1–2 consulting engagements for Q3 2026 — Mobile AI Launch Readiness Audit · 3 weeks · $25–35K fixed-fee · iOS engineering meets AI infrastructure

📊 Live operational metrics — joemattiello.dev/status (Lighthouse, security headers, OSS impact — re-audited on every deploy)

• Provenance — multi-system iOS/tvOS/macOS emulator, App Store launch Jan 2025, 6.3k⭐, 79 contributors, 9.3k Discord members, 388k+ GitHub release downloads
• Multi-agent CI orchestration across the Provenance org — Claude (Sonnet+Opus auto-routed by static diff analysis) + Cursor + Kimi sharing one dispatch vocabulary. Case study →
• Atari Jaguar 240p Test Suite — bare-metal m68k port of Artemio Urbina's 240p Test Suite. Built end-to-end with Claude Code + Copilot/Qodo as adversarial reviewers. 36 PRs in 10 days, ~84% AI co-authored. PR #27 (PAL pass) · smoke-test CI
• virtualjaguar-libretro — maintainer; first open-source Atari Jaguar CD emulation. 28 merged PRs.
• AI tooling at Wayfair — custom MCP servers, Claude skills/plugins, n8n workflows for the App Infrastructure team supporting 60+ mobile engineers

Repo	Stars	Role	What it is
Provenance-Emu/Provenance		Creator · Lead	iOS/tvOS/macOS multi-system emulator. App Store.
HeroTransitions/Hero		Admin · Maintainer	Custom view-controller transitions for Swift.
libretro/virtualjaguar-libretro		Maintainer	First OSS Atari Jaguar CD emulation.
JoeMatt/atari_jaguar_240p_test_suite		Maintainer · AI-built	Bare-metal m68k Jaguar — built with Claude Code.
RxSwiftCommunity/RxRealm		Maintainer	RxSwift bindings for Realm.
CoreOffice/XMLCoder		Major contributor	Codable XML parsing in Swift.

Other notable contributions: RetroArch (Apple platform drivers — camera, microphone, CoreMIDI, CoreLocation) · SideStore (org member, 21 merged PRs) · swift-corelibs-foundation · Mono / Xamarin (CoreMIDI, CoreAudio, Foundation C# wrappers for MonoMac) · GLideN64 · mupen64plus-core · UTM

• mobilegamer.biz (Apr 2026) — featured developer interview in the 2-year App Store emulator retrospective
• 9to5Mac, iMore (exclusive), Time Extension, Android Authority, AppleInsider, Pocket Gamer (dedicated hub)
• YouTube coverage: TWiT (2.3M subs), ETA PRIME (2.2M), Spawn Wave
• Earlier: Newsweek cover ("The Next Google" — Sense Networks, 2009), Bloomberg Businessweek "25 Most Intriguing Startups", New York Times, CNN Money

• US 8,224,766 — Comparing spatial-temporal trails in location analytics
• US 8,620,624 — Event identification in sensor analytics
• US 9,571,962 — System and method of performing location analytics

Patent portfolio acquired twice — by YP/YellowPages in 2014, then by Verve in 2017.

_{Site, status dashboard, and consulting offer are all open source — see joematt.github.io.}