Freelancer profile translated to English.

Description

Senior full-stack developer with over 15 years of experience, I have worked on high-stakes business and high-volume products, ranging from very high-traffic consumer applications (SFR mobile store, SNCF mobile application) to critical platforms used daily by thousands of users (Foncia, Michelin).

Coming from the Java ecosystem, I have progressively expanded my expertise to Node.js and TypeScript, both on the backend and frontend (Angular then React), while maintaining a strong sensitivity to architecture, performance, and software quality issues.

I particularly appreciate contexts where technology serves a visible and structuring product, with a direct impact on user experience and business teams. I also have a strong appetite for DevOps, cloud, and observability topics, which I naturally integrate into my missions.

Currently available, I am open to new opportunities. Feel free to contact me.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

Michelin
Senior Full Stack Product Developer
June 2024 - Today (2 years)
Development of the MBoM (Manufacturing Bill of Materials) system used in Michelin factories for managing manufacturing bills of materials and optimizing manufacturing processes.
Team of approximately 40 people organized into 3 sub-teams. Composed of business experts, backend/frontend developers, and technical architects. Scrum organization: 2-week sprints, refinements, planning, reviews.
Deployment in 3 pilot factories (Valladolid/Spain, Alessandria/Italy, Shenyang/China) in 2024-2025. Goal of rollout to 64 global factories. Technical lead for Java/Frontend: I develop complex features for project validation and business versioning management (similar object detection algorithm, intelligent management of major/minor releases). Design and implementation of the "Similar Objects" algorithm in Clojure for automatic detection of similar business objects and object versioning. I work on performance issues. Optimization of stored data volume (75% gain in disk space, index size, backup/restore time). Optimization of project validation time. Observability with Grafana (logs, metrics, dashboards). Configuration of dashboards to monitor key service performance and measure pre/post-optimization gains. Development of CBL/CDM integration: data mapping, Avro schemas for Kafka events, validation with Malli. Event-driven architecture for inter-factory synchronization.
Full-stack development of complete features: cooking rules administration page (Spring Boot backend + Angular frontend), business wizards, BOM management.
CI/CD & Infrastructure: implementation of GitLab pipelines (Cypress E2E tests, integration tests), automatic versioning of multi-site configurations.
Emeria Technologie
Senior Full Stack Product Developer
January 2022 - January 2024 (2 years)
Foncia, Aubervilliers, France
Development of the new application used in Foncia agencies for property management and co-ownership management.
Team of approximately 100 people. Composed of business experts, product managers, and technical experts. Strong involvement in product development with a "Scrum Less" organization: sprints, product backlog refinements, sprint planning, sprint reviews.
During 2023: migration of all Foncia agencies to the new application. Progressive scaling up to 15,000 daily users (managers + accountants). I develop features for the co-ownership/accounting part (Fund Calls, €400M called per quarter).

I address performance issues, often related to Mongo (query optimization, data denormalization, refactoring). I investigate production anomalies. Observability with Datadog (logs, metrics, monitors, APM, dashboards...). Resolution of production tickets / Reliability.

Front stack: TypeScript, React, Material UI + Emeria design system. Back stack: TypeScript, Node, TS-REST, Mongo, RabbitMQ, Steps Functions, AWS. Monorepo: pnpm.
Relevanc
Senior Full Stack Web Developer
January 2021 - January 2022 (1 year)
Development of a configuration and advertising campaign monitoring tool. Tool for media traders, agencies, and brands. Simplifies advertising campaign planning on the Xandr platform and allows monitoring through sales KPIs:
• Team composed of 6 experienced developers + 1 data scientist + 1 scrum master
• Backend: TypeScript, Postgres, Redis, Node, GraphQL, BullMQ, Xandr
• Frontend: React / TypeScript, Antd, Apollo