About Julien
French
Native or bilingual
English
Fluent
Experience
- AXASoftware DeveloperAugust 2018 - Today (7 years and 10 months)Intervention on TEX, Axa's telematics platform that collects data from connected vehicles and calculates driving scores used to offer personalized insurance policies based on monthly driving behavior. Development of new features and bug fixes on the legacy platform. Maintenance and operation of a highly available production environment scaled for over 100,000 connected vehicles. Progressive migration of projects hosted on the legacy infrastructure (EC2) to a fully serverless architecture. Design and development of new cloud-native telematics services in fully serverless.
- XebiaSoftware DeveloperMay 2017 - May 2018 (1 year)Participation in the development of Galeries Lafayette's Datalab, a platform that centralizes and leverages data from multiple internal and external sources. The project aimed to collect, process, and analyze both batch flows (daily customer database exports, stock, etc.) and real-time flows (web interactions, in-store receipts) to generate actionable insights and optimize marketing actions. Integration and processing of batch data (CSV files) with Spark. Integration and processing of real-time data (web traffic, receipts) via Spark Streaming or Kafka Streams. Implementation of real-time logic for personalized targeting (sending promotional codes based on user behavior). Supervision and monitoring of streaming machines and jobs with Prometheus and Grafana. Industrialization and automation of batch/streaming deployments via Jenkins and Ansible.
- XEBIAJava DeveloperMay 2016 - May 2017 (1 year)Participation in the development and maintenance of the Eurostar website's back-end, as well as the complete redesign of the price calendar for better performance and maintainability. Automation of functional tests via SOAPUI. Development and integration of SOAP web services. Implementation of new performance and reliability-oriented features. Refactoring of existing code and improvement of software quality. Adoption and dissemination of craftsmanship best practices within the team.
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Education
- Doctor of Philosophy (Ph.D.) - ChemistryUniversité de Cergy-Pontoise2012
- Computer Analyst - Java JEEafcepf2013