Maxime Darras

CTO and Lead Developer at Meduz, a French conversational AI-driven entertainment mobile application, with real-time integration of connected devices via Bluetooth Low Energy. Published by Shady Squid Ink SAS, a dedicated subsidiary of Studio Bidibou.

Full scope: product technical direction, cloud architecture, multi-model LLM orchestration, Flutter mobile app, native iOS / Android / Web plugins, and BLE hardware integration.

🤖 Multi-model AI Architecture

Pipeline of two LLMs orchestrated in series: a narrative model (Cydonia 24B via OpenRouter) producing prose, and an instruction-tuned model (Mistral Small 3.2 24B) reading the prose in real-time and emitting structured JSON markers to control hardware. Long-term memory (session summaries), dynamic relational scoring, content gating based on user permissions, strictly isolated system prompts.

📱 Cross-Platform Mobile Application

Flutter 3.10+ in feature-first Clean Architecture, Riverpod 3 with code generation, GoRouter, Hive persistence, FR/EN multi-locale, dedicated consent onboarding, complex state management with character-by-character replay.

🔌 Native Plugins on 3 Platforms

- iOS: Swift + manufacturer SDK (xcframework), custom MethodChannel

- Android: Kotlin + manufacturer AAR, FlutterFragmentActivity, runtime BLE permission management

- Web: JS SDK via interop, BLE QR code pairing

☁️ NestJS Backend

REST API, Firebase authentication, Prisma ORM on PostgreSQL, dedicated OVH hosting, RevenueCat integration for multi-tier subscriptions, AdMob for cascading freemium monetization.

💡 Proprietary Haptic System

4 hardware presets calibrated and device-tested, narrative profiles mapped to scenarios, synchronized replay via MessagePlaybackController. Capability matrix per device model for dynamic adaptation.

🛡️ Security & Compliance

BLE tokens signed against bundle ID, multi-level content gating, age gate, consent flow compliant with Apple / Google stores.

Audit, scoping, and action plan mission for the completion of a troubled mobile application — project blocked after a previous interrupted collaboration, needing stabilization before resuming development.

🎯 Scope

- Complete technical audit of the existing codebase (Flutter front-end + NestJS back-end)

- Study of the existing cloud architecture and identification of blocking points

- Critical review of APIs and integration choices

- Definition of a prioritized action plan for completion and production deployment

🏗️ Architecture Studied

- Mobile front-end: Flutter (iOS + Android)

- Back-end: NestJS on Node.js, MongoDB database

- REST API + WebSockets (Socket.io) for real-time features

- AWS cloud infrastructure

📋 Deliverables

- Structured technical audit report

- Action plan with milestones and effort estimates

- Recommendations for target cloud architecture

- Stabilization and development resumption roadmap

A short but high-expertise mission — typical of a project rescue mandate, with very positive client feedback on the ability to quickly grasp a complex codebase.

Stack: Flutter, NestJS, Node.js, MongoDB, AWS, Socket.io, Clean Architecture

Full-stack development of an LFG (Looking for Group) community platform for gamers, deployed on 5 platforms — iOS, Android, Web, macOS, and Windows — from a unified Flutter codebase.

Full scope: cross-platform front-end, NestJS back-end, real-time infrastructure, and AWS cloud architecture.

🎮 Key Features

- Instant multi-user chat with persistence and presence

- Real-time voice chat via WebRTC (dynamic rooms, audio permissions management)

- Creation and broadcasting of posts (teammate search, session announcements, community filters)

- Cross-platform push notifications

- Player profiles, community management

🏗️ Architecture

- Flutter Frontend: 1 codebase → 5 platforms, advanced state management, multi-target CI/CD builds

- NestJS Backend: REST API + WebSockets for real-time (Socket.IO)

- MongoDB database

- Scalable AWS infrastructure (compute, storage, messaging, WebRTC signaling)

Stack: Flutter, Dart, NestJS, TypeScript, MongoDB, AWS, Socket.IO, WebRTC