About Julien
French
Native or bilingual
English
Fluent
Experience
- PMVInfrastructure & Automation LeadPUBLIC SECTORAugust 2025 - April 2026 (8 months)Paris 13 Gobelins, FranceAutomation of business processes and integration of AI solutions into full-stack applications. – Automation of 5 critical business processes, generating an estimated operational time saving of 25-30% per quarter. – Design and deployment of autonomous AI agents via LangChain, LangGraph, and CrewAI — multi-agent orchestration in production. – Management of LLM contextual memory (short-term / long-term memory, vector stores) for intelligent business workflows. – Deployment of containerized solutions (Docker) with CI/CD pipelines; integration of AI solutions into Node.js/Python applications. – Technical documentation and skills transfer to the team on automation and AI integration patterns.
- NielsenIQSenior Full Stack Engineer & Design LeadAGRICULTUREDecember 2019 - January 2024 (4 years and 1 month)Bezons, FranceLead Front-end & Design System ArchitectObjective: Industrialization of the interface and guarantee of software quality.- Design System Architecture: Design and deployment of a complete design system based on Design Tokens (DTCG) to ensure multi-platform consistency.- Technical Governance: Structuring of UI/UX standards, facilitation of architecture rituals (ADR, Code Review, Pair Programming) and writing of reference technical documentation.- Quality & Testing Culture: Implementation of robust CI/CD pipelines with guaranteed coverage through unit tests and end-to-end (E2E - Playwright/Cypress) tests.- Performance & Maintainability: Optimization of Angular application performance and drastic reduction of front-end technical debt.
- DijiiSenior Front-End EngineerDIGITAL AND ITSeptember 2016 - January 2019 (2 years and 4 months)Clichy, France
AngularJS Engineer
Objective: Design of modular and high-performance interfaces for data analysis.- Modular & Sustainable Architecture: Development of complex React/TypeScript components following Domain-Driven Design (DDD) and Clean Code principles to ensure long-term maintainability.- Code Security: Implementation of a comprehensive automated testing strategy (Jest & Cypress), halving the number of production regressions.- Critical Performance Optimization: Drastic improvement of Lighthouse scores through Lazy Loading and Bundle Splitting, ensuring maximum fluidity with large data volumes.- Agility & Multi-device: Continuous delivery in Agile/Scrum environment to ensure perfect compatibility across all devices (Desktop, Tablets, Mobile).
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Education
- Master of Web DevelopmentIPSSI2015Master Développement Web
- Web Developer & IntegratorIFOCOP2014Développeur & Intégrateur Web