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JeanDes-Code/README.md
Jean de Sauw — Lead React Native Engineer · Audio × AI

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Jean Desauw

Lead React Native Engineer · Audio × AI

Senior mobile engineer for technical founders who ship at Series A/B pace.

Website LinkedIn Email

About

I build production React Native apps where the hard problems are the point — real-time audio pipelines, Bluetooth MIDI devices, AI inference, sub-50ms feedback loops.

Currently Lead React Native Engineer at Odisei Music — a music-tech product that connects saxophonists to a Guitar Hero-like learning experience via Bluetooth hardware. I own the full mobile stack: BLE communication, MIDI processing, AI-assisted feedback, and App Store delivery.

Before that: 6+ years across Series A and B products, working directly with CTOs on architecture, team mentorship, and cross-platform performance.

🎵 Featured: Odisei Play

Lead React Native Engineer at Odisei Music

Music learning app with real-time MIDI feedback and a Guitar Hero-style interface for Travel Sax 2 players.

Hard problems solved:

  • Real-time MIDI note detection over Bluetooth (BLE)
  • Guitar Hero-style visual feedback at <50ms latency
  • MIDI partition sync with frame-accurate timing
  • Seamless Travel Sax 2 hardware integration
  • Cross-platform performance optimization

Shipped:

  • ✅ Live on App Store
  • ✅ Scalable architecture supporting rapid feature iteration
  • ✅ CTO-facing delivery with full architecture ownership

Stack: React Native · Expo · TypeScript · BLE · MIDI · AI

App Store

🛠️ Technical Stack

React · TypeScript · Next.js · Node.js · React Native · Expo · PostgreSQL · Tailwind

💼 What I Ship

Domain Reality
Audio × AI Real-time MIDI pipelines, BLE device integration, AI inference on mobile and server-side
React Native / Expo Production apps from zero to App Store, complex animations, performance budgets
Architecture Scalable mobile architecture for fast-moving Series A/B products
Technical Leadership CTO-facing ownership: roadmap, code reviews, team mentorship, cross-platform strategy

Let's work on something hard

Looking to move fast on a complex mobile product?

Contact Me

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