Pascal Heitz

Conversion of an old JS codebase to a state-of-the-art TS codebase with latest libraries.

Lead and coaching of a junior developer.

Setup and enforcement of good programming practices.

Game mechanics design: Assessment of possibilities, and creation of collective and competitive games.

Sourcing of mechanical and electronic components.

Architecture of electronic cards networks. Design and manufacture of PCBs.

Design and development of an unopinionated game engine.

R&D of pressure sensors and LED light diffusion.

3D modeling and printing of technical plastic components.

Prospection for B2B clients.

Lead and coaching of junior and intermediate fellow developers.

Setup and enforcement of good programming practices.

Creation of a user-tailored multi-criteria content feed with ElasticSearch.

Design of a multi-layer data-centric architecture. Design talks with fellow developers.

Progressive rewriting of the FeathersJS backend to a brand-new NestJS backend built on good practices. Incremental improvement and additions to the old backend during the transition.

Creation of type-safe internal libraries.

Mentoring of junior developers, code reviews, peer-programming. Enforcement of coding good practices.

Within a small team of talented people, I participated in rewriting the admin panel of the customer's project, and enhanced the backend to support new requirements.

Users get quized on their knowledge of important facts of League of legends.

Supermemo is used to keep track of the user's progression on the toughest questions.

On the backend side, a react-admin admin panel allows admins to create and edit questions.

I have been learning Czech for the last couple of years. Watching Czech movies has been very tedious, as I was encountering an overwhelming number of unknown words every minute.

There was no good tool to assist me creating Anki flashcard. I've tried every tool I could find, but there were mostly buggy and abandoned projects. So I decided to build my own.

Under the hood, it uses LibVLC and Chromium glued with WPF's bindings.

Give it a go at flashyplayer.com.

Ordamo, a London-based chain of restaurants makes extensive use of Android tablets to manage orders. These hundreds of tablets were managed with a commercial MDM (Mobile Device Management) solution. This MDM bills their service on a per-device-per-month basis and this makes it a very expensive setup.

Ultimately we needed to build our in-house MDM solution for multiple benefits:

• Replace recurrent high running costs by a fixed development cost.
• Create features that the current commercial MDM solution does not provide.

Challenges were numerous:

• Multiple ways to achieve tablet management: Android Enterprise, G-Suite, Android Management API, Administrator app, device owner app, etc. Ultimately, we decided to use the Device Owner app, which combines powerful features, and no running costs.
• Each device and version of android have their quirks. Some features are only available in late versions. Some available in early versions were removed in later versions (mainly for safety and privacy). Many workarounds were necessary to ensure the same features on every device and Android version.
• The Android documentation is very scarce when it comes to administration features. Many trial-and-errors were required to empirically figure out undocumented behaviors.

In addition to the MDM solution, a standalone Android app was made to quickly enroll new devices with either NFC or a QR-Code. This gave the opportunity to try Ionic 5 and Capacitor which were just released.

"Pick the perfect wine, every time"

Corkscrew helps you pick the best available wine for any food you choose in a restaurant.

To do so, it regularly fetches the latest wine lists in the restaurants' websites.

Among the small Corkscrew team, my responsibilities were multiple:

• Create, maintain and update the app's backend and the administration dashboard. Design efficient processes to curate incoming data. Angular.js, Node.js, MongoDB.
• Keep the database's wine data consistent and normalized. Fix data conflicts and reality / model mapping. Build automatic import tools to enhance the automatic wine recognition.
• Create Guzzler, website crawler regularly fetching wines from e-shops.
• Build a rule-based algorithm to match a wine name on a wine list against a wine in our database. Our database contains thousands of named entities. It also understands wine list layouts, glass / bottle volumes, prices, etc.

Give it a go at Corkscrew.app.

Took part in the development of the in-house Brain Simulator.

• CUDA implementation of convolution neural networks and autoencoders.
  

  
• Live visualization of the network's state (e.g. weights, errors).
• R&D in reinforcement learning around DeepMind's paper.

Speed cameras' aperture and gain are controlled by a physical lux meter. The lux meter is an expensive piece of hardware to buy, setup and maintain. The goal was to determine an appropriate method to choose the best aperture and gain according to the images coming from the camera itself, without the need for any external hardware.