Xavier Le Cunff

- Feature development

- Architecture improvement

- React Native update

- Overall improvement of tests

This mission tested my skills in clean architecture and Test Driven Development. The goal was to have shareable code between the mobile application in React Native and the web application in React.

I had to separate the business logic from the UI during the order process to be able to write my tests with Jest, mock the API through dependency injection, and implement an architecture with a predictive state using Redux Toolkit.

Thousands of order paths are possible on the tilli.fr site, so I decided to create a script in Python and Selenium and another with Node to scrape the prices of all the order paths and compare them with my newly created order paths on mobile.

- Integration of new designs

- Script creation

- Architecture

Very interesting project in an entirely marketing team. I had to highlight my popularization skills to communicate my progress.

The project had not been maintained for over a year, so I had to update React Native from version 0.63 to version 0.73, with the maximum amount of care to avoid hindering the behavior of the app for users in production (over 60000)

Since the project included a backend, a back office, and a mobile app, I took the initiative to create a mono-repo and automate versioning and continuous deployment with semantic release, Gitlab CI, and Fastlane, all installed on a physical Mac Mini in the company.

There was no staging environment for the mobile part.

I was able to set up a continuous deployment step to have the app marketing manager validate the changes upstream and find any potential bugs introduced.

The back office part is managed on AdminBro (AdminJS now) and the backend on Node with GraphQL, being the only developer on the project I made the full stack evolutions on the backend, mobile and back office.

- Setting up notifications with One Signal

- Resuming development of the mobile application and its backend.

- Creation of the mono-repo

- Development of the continuous deployment flow with Fastlane and Gitlab-ci

- Production release every week with 60000 users

- Reflection on the product part

- Evolutions