Léo Jeusset

Helping early detection of Barrett's oesophagus cancer. Going from 0 to 10k+ lines of elm single handedly : from architecture to style-system passing by proper CI support (elm-review, elm-analyse, elm-ui-explorer) and big portions of the design. Enforcing best practice on the entire code-base. Architecturing the backend and the entire system as well as the infrastructure on AWS. Advocating for infrastructure-as-code, introducing event-sourcing via Kafka and GraphQL (with elm-graphql for the frontend). Collecting user requirements, setting up user-stories and project management.

Developing SurveyMaster is a business application for ship inspectors. The application allows them to gather their observations offline, while they are inside a tanker-ship or diving around it; easilty generate detailed reports; planify inspections and efficiently distribute their work. At this stage of the project, I was the sole developer for the frontend (almost 40k lines of elm), and participated in the backend (ruby on rails) along with colleagues. My responibilities include: - Single handedly migrating an important code base from elm 0.16 to 0.18 then 0.19. - Adding and improving features on live-application. - Defining requirements and code-architecture - Rewieving coworkers' code and functionalities in elm and Ruby. - Recruiting and mentoring a new member of the team.

Repositive is accelerating biomedical research by connecting biopharmas with the right preclinical cancer models and CRO partners. My main responsibilities included: - Maintaining and improving two important Ember.js codebases. - Making frontend components more functional (clear I/O, no side effects). - Writing backend services in a domain architecture using event-store, OpenAPI & micro services in Node.js (typescript). - Enabling test-coverage on some of the backend service and getting them above the 90% threshold. - Introducting E2E testing with Cucumber and Selenium then Puppeter. - Mentoring co-workers as they learned new technologies (e.g.: Ember, Cucumber). - Planning, scoping and reviewing.