About David
French
Native or bilingual
English
Fluent
Experience
- Projet ReachFull-Stack & AI Developer (React Native / Node.js)SOFTWARE PUBLISHINGOctober 2025 - Today (8 months)Paris, FranceConception and development from scratch of Reach, an innovative cross-platform (Web & Mobile) matching application, powered by an AI multi-agent system.Technical Missions and Achievements:
- Frontend Architecture (React Native & Web): Development of the mobile application (iOS/Android via Expo) and the web interface. Creation of fluid User Interfaces with real-time messaging integration (StreamChat) and advanced UX management (animations, keyboards).
- Backend Development (Node.js): Design of a robust and modular REST API with the Fastify framework and TypeScript. Integration of Auth0 for securing user profiles.
- AI & LLMs Integration: Orchestration of generative Artificial Intelligence models via OpenRouter. Creation and fine-tuning of complex prompts to control the behavior of multiple conversational agents.
- Data & Vector Database: Advanced PostgreSQL database modeling (Multi-schema JSONB). Design of an internal matching engine based on semantic search using vector embeddings (pgvector extension).
- DevOps & CI/CD: Containerization of the Backend and DB infrastructure with Docker. Configuration of build and publication pipelines on the stores (App Store, Google Play Store) via EAS (Expo Application Services).
A complete project requiring strong end-to-end technical mastery, from the data infrastructure (vector databases) to deployment on end-user phones. - AdeoFull-stack JS DeveloperRETAIL (SMALL BUSINESS)December 2022 - December 2025 (3 years)Lille, France
- Frontend Development & Internationalization: Creation of a multilingual customer interface deployed in five European markets.
- API Integrations & Data Flows: Integration and complex management of data flows from multiple external APIs.
- Performance & Reliability: Application monitoring, production incident management, and implementation of continuous optimizations (response time and stability).
- DevOps & CI/CD: Management of application deployment processes and version control (Git) across all staging and production environments.
- Big Data Processing: Development of large-scale file import scripts (XLSX, CSV) incorporating fault-tolerant parsing and robust validation logic.
- Asynchronous Architecture: Orchestration of asynchronous communication via Kafka to manage high-volume data pipelines.
- Humans MatterTech Lead FrontendEDUCATION AND E-LEARNINGMay 2021 - December 2022 (1 year and 7 months)Paris, France
- E-commerce Platform & UX: Development of a high-performance e-commerce platform, strongly focused on user experience and conversion rate optimization.
- Frontend Development (React.js): Creation of reusable UI components using React Hooks, in strict accordance with design specifications (Figma/UI).
- SEO Optimization: Advanced integration of SEO best practices into the core of the application (SSR/SSG, markup, web performance) to ensure optimal visibility and ranking.
- Cloud Architecture (AWS): Design and deployment of a highly scalable serverless architecture leveraging the AWS stack (AppSync, Amplify, S3, and Kinesis).
- Responsive & Adaptive Design: Implementation of interfaces perfectly adapted across all platforms (Desktop, Tablet, Mobile).
- Software Quality & Testing: Rigorous implementation of unit and integration tests to ensure code stability, non-regression, and long-term maintainability.
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Education
- ECOLE 42EC English School2017ÉCOLE 42