Pingflow develops a no-code software a service that allows anyone to design big, interactive dashboards that automatically displays up-to-date information from various data sources. These dashboards can be created by dragging elements on a canvas, and connecting them to data sources such as APIs, SQL databases and spreadsheets.

I led the development of a new major version of the product and migrated the codebase to a more modern an more scalable architecture: from stateful services that were hard to scale to stateless services that could scale horizontally, from jQuery to Vue, from Javascript to Typescript, from release in zip files to containers.

It was also my first professional experience with Scala and Akka, which I has taught myself and introduced in an attempt to build a more scalable platform. Actors and message-passing made it easier to reason about the live data update that were dispatched throughout the system.

Taught a 15-hour tutorial course on functional programming to students of the HEI School of Engineering in Lille.

The course covered the fundamentals of functional programming in Scala (referential transparency, totality, lazy and eager evaluation, composition, collections manipulation …) and a few more advanced topics such as IO monads and functional streams (using Cats effect and fs2).

We applied these notions to the making of a project : a purely functional Tic Tac Toe game that could be played simultaneously on two computers through a TCP server.

Colisweb is a french delivery service specializing in last mile delivery.

I developed Scala micro-services, using a purely functional style and libraries such as Cats and Http4s. I’ve had the opportunity to migrate several services from Play Framework to Http4s and Tapir; and also contributed to an open source tracing library to improve the observability of their platform.