Benjamin Lesné

Project “Scenario Explorer”: interactive tool for visualizing the carbon emissions of the entire European building stock, while presenting different carbon reduction strategies. Carbon emissions can be visualized according to building life cycle analysis stages, building types, etc. This is the interface for the study named “Support Study for the Development of the Roadmap for the Reduction of Whole Life Carbon of Buildings”, funded by the European Union.

Tasks completed:

- I built everything, from backend to frontend

- Development of a REST API to read and serve data from Parquet files

- Data visualization with Recharts

- Tested my code with Vitest and Playwright

- Worked with a container-based CI/CD

- Wrote documentation for users and developers

- Collaboration with the UX/UI designer and the data team

Project “Platform”: website for event management and candidate tracking. Several “child” applications derived from a “mother” application were created to meet different client needs (Réalise Tes Rêves, Marseille Capital de la mer, FFTDA, and many others!)

Tasks completed:

- creation of an internal library

- update of the design system

- writing documentation (user and technical) with Docusaurus

- implementation of a WebSocket

- responsible for CI/CD

- I proposed and implemented:

→ end-to-end tests with Playwright, which reduced the bug rate per release by 40%!

→ a Gitlab pipeline reducing the total time needed between a bug fix and its deployment to production by 30%