Freelancer profile translated to English.

Description

Hello! I'm Gaby, a senior full-stack developer with over 10 years of experience working with scale-ups and large corporations (Hermès, Sephora, AXA, Groupe La Poste…).

I help companies build fast, maintainable, and scalable web applications:

High-performance front-end with React, Next.js (App Router), TypeScript, Tailwind

Solid and secure back-end with Node.js, NestJS, PostgreSQL, Kafka

Clean architecture: automated tests, CI/CD, monitoring, Docker

My latest concrete impacts:

Hermès: complete migration from Magento to a headless stack (Next.js + Node), +45% speed and 60% reduction in time-to-market for new features

Sephora: real-time notification API (Kafka + WebSocket) used by 100% of French stores for add-on sales

AXA: redesign of the agent portal with complete CI/CD → fourfold reduction in production bugs

I work in French or English, 100% remote or on-site in Paris when necessary. Agile methodology, incremental delivery, clear and daily communication.

Need a dev who delivers quickly, cleanly, and can talk to both CTOs and product owners? Let's discuss your project for 15 minutes, the initial technical audit is free.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km), Lyon (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km), Marseille (up to 50km)

Hermès
React | Node Developer
LUXURY GOODS
September 2024 - Today (1 year and 9 months)
Paris, France
I joined the Nova Services team at Hermès as a React and Node developer. My role involved contributing to the migration of the Magento platform to an in-house proprietary solution, actively participating in the development of new features, the design of technical architectures, and the establishment of effective methodologies.

My main responsibilities:

Developing new features as part of the e-commerce platform migration.
Designing and proposing technical architectures suited to business needs.
Initiating and structuring projects from scratch, applying best development practices.
Participating in the design, development, testing, and deployment phases of solutions.
Contributing to the continuous improvement of code quality and development processes.
Collaborating with teams (Order, Shipping, Return, Payment, Customer, Omnichannel, Cart, Inventory, Tax).
Implementing event systems using Kafka for notification management.

Technical Skills:

Testing with Vitest.js and quality approach.
Using Docker for application containerization.
Performance optimization with Vite.js.
Integration of event systems with Kafka.
Collaboration and source code management using agile methods (Scrum, Kanban).

Notable achievements: Creation of a worker system listening to Kafka events from the order process to display real-time notifications on a dedicated interface, improving user experience and order status visibility.
Apache Kafka Docker Node.js NestJs PostgreSQL
SEPHORA
React Developer
August 2021 - May 2024 (2 years and 9 months)
Paris, France
• Design, development, and maintenance of critical features and APIs for the in-store management and checkout system.
• Close collaboration with front-end teams to integrate necessary features and APIs.
• Use of the NestJS framework for back-end development.
• Optimization of performance, scalability, and security of back-end applications.
• Performing automatic tests to ensure code quality and system stability.
• Implementation of automatic deployment.
• Proactive technological watch.
AXA
React Developer
June 2021 - July 2021 (1 month)
Paris, France
• Carrying out developments within the framework of releases and sprints.
• Improving the quality of produced code by regularly performing Pull Requests.
• Participation in the testing strategy and increasing test coverage.
• Writing reference documentation on developments carried out.
• Incident analysis and resolution.
• Contribution to a culture of innovation (technological watch) and knowledge sharing (pair coding, mob programming, etc.).