About Walt
French
Native or bilingual
English
Fluent
Experience
- NexinetSoftware Architect & Platform DesignerSOFTWARE PUBLISHINGJanuary 2018 - January 2026 (8 years)• • Complete design of a modular platform's software architecture: definition of the client-server model, choice of exchange protocols (JSON/XML), server sizing for scalability.• • Microservices architecture: design of a set of decoupled PHP services (read/write), standardized exchange protocols, exposure via AJAX API.• • Design of an event-driven messaging system (EventManager.js): inter-component publish/subscribe, complete decoupling between modules, Observer pattern applied to the entire UI.• • Data access layer abstraction: complete encapsulation of DB functions (connection, SELECT, INSERT…) allowing for DBMS changes without application impact. Repository/DAO pattern.• • Modular architecture based on specialized singletons: ProcessManager (routing and rendering of pages described in the database), state manager (inter-page state machine), graphics representation manager.• • Design of a cross-platform mobile abstraction layer: native Android (Java) and iOS (Objective-C) foundations exposing a unified JavaScript API for resource access (camera, files, notifications), eliminating business code duplication.• • Security: authentication token system, anti-SQL injection procedures, service isolation.• • AI/LLM Integration: RAG system (ChromaDB, Ollama embeddings, Mistral local LLM) for intelligent automation.• • CI/CD, Linux Ubuntu server administration, Apache, MySQL, Firebase (FCM), App Store & Google Play publication.Technologies: PHP, JavaScript, Java, Objective-C, MySQL, Apache, Linux Ubuntu, Firebase, Python, ChromaDB, Ollama
- Avantage ProductionSystem Architect & Developer – Production SupervisionJanuary 2017 - January 2018 (1 year)• • Design and implementation in full autonomy of a real-time industrial production supervision system, as a decoupled layer on top of an ITPAM PLC (CA).• • Decoupled architecture: abstraction of the ITPAM database to ensure longevity against source product evolution. Definition of exchange protocols (XML), API design (microservices).• • Real-time visualization on a graphical timeline of application processes, with an ergonomic alert system, SMS/email notifications, and filtering by user profile.• • Complete infrastructure: LAMP server implementation, architecture definition, autonomous deployment.Technologies: PHP, JavaScript, jQuery, C, C++, Linux, Apache, MySQL, SQL Server, XML
- NDL | Entrepôt logistique automatisé (Carrefour France Textile)IS Manager – Technical Leadership & ArchitectureJanuary 2002 - January 2007 (5 years)Gamm vert, Moyvillers, FranceManaged a team of 12 people organized into Operations, Development, and Integration units.• • Design of an asynchronous messaging system (MQSeries type): each barcode scan generates a message stored in a queue, consumed cyclically to provide real-time tracking of receptions and shipments. Event-driven / message queue pattern.• • Decoupled supervision architecture: a parallel system to the existing Oracle/SCHERZO database, designed to provide operational staff and business users (Carrefour) with real-time indicators (progress, incidents, stocks) without impacting the source system.• • Negotiation and management of projects outside the initial contractual scope: joint specifications with Carrefour, technical specifications, cost estimation, and delivery monitoring.• • Active participation in ISO 9001 and 14001 certifications, budget validation, HR management.Technologies: Unix/Linux, Oracle, MySQL, PHP, PL/SQL, Thales/Crisplant conveyor systems
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Education
- Master II in Computer EngineeringDiplômé Master II Ingénierie Informatique.
- Master II in Science & TechnologyVAE2007Master II Sciences & Technologies