Freelance React and Node.js Lead Developer

9/2019 – 12/2019

Zipline Projecct:
Project organised as a task force to deliver in 6 months a uber-like app for last kilometers deliveries for the US market. Commercially branded as Zipline, it went live on the 1st of April 2020. It uses private drivers to deliver parcel from a local store to the buyer's home or office

As a Lead Dev Node.js, React with a team of 4 other JS devs:
- Built from scratch the whole backend microservice architecture using clean architecture principles with Firestore and Elasticsearch as databases -> 19 microservices + 3 shared libraries + 12+ cloud functions
- Developed 3 gateways -> 1 for mobile apps, 1 as an external API using Oauth 2.0 authentication and 1 gateway using Apollo Server for the Webapp
- Deployed 3 front-end apps -> 1 webapp with Apollo Client used to follow operations, 1 app to register drivers for the mobile app and 1 app for final client to track progress of their parcel
- Implemented unit tests with Jest and React Testing library and end-to-end tests with Cypress

Stack: React, Styled Components, GraphQL, Typescript, Node, Express, Firebase (Firestore, Authentication, Storage, Messaging, Cloud Functions), Elasticsearch, Kibana, Memory Store (Redis), Google Cloud Pubsub, React Testing Library, Jest, Cypress, Gitlab CI/CD, Docker, Kubernetes, GCP, Swift, Kotlin
Third party services: Graphhopper, Mapbox, ClickSend and Paypal
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Spotlight Project:
The Spotlight project aims to provide a new web portal and a new user experience for all Geodis SCO clients. All the frontend and backend architectures are built from scratch and gather data from several internal systems.

As a Lead Dev Node.js, React with an international team of 5 other JS devs (1 in Europe, 4 in North America):
- Built from scratch the whole backend microservice architecture using clean architecture principles with MySQL and Azure CosmosDb - GraphDb as databases
- Developed gateways and the frontend app with React
- Implemented unit tests with Jest and React Testing library

Stack: React, Styled Components, Node, Express, Sequelize, MySQL, GraphDb (gremlin), Azure Cloud Services, React Testing Library, Jest, Github, Docker, Kubernetes
Third party services: Mapbox

Google Cloud, Node.Js, React (JavaScript library)

12/2018 – 9/2019

Upply is a startup in the Logistics and Supply Chain industry which developed a unique solution for businesses to help them overcome market volatility, uncertainty and complexity.
As a React and Nodejs Developer:
- Developed new features for the solution with the latest version of React (including Hooks), Nextjs and TypeScript.
- Migrated solution to full SSR solution using Nextjs
- Took part in key sprint ceremonies
- Implemented unit tests with Jest

Stack: React, TypeScript, Rematch, Nextjs, Jest, Expect, Styled-components, Node.js, Express, MongoDB, Docker, Kubernetes, Jenkins.

Node.Js, React (JavaScript library)

12/2018 – 3/2019

Structured, developed and deployed a React Native app to manage all documents (download, edit and upload pdf document). The app is used by a small welding company to manage its documents for its clients.
- Developed the app with React Native, Redux, React navigation, React Native FTP and React Native MSSQL
- Deployed app on the stores

Stack: React Native, React Navigation, Redux, React Native FTP, React Native MSSQL

React Native