Pascal Heitz

Introduction of TypeScript and NestJS into the backend ecosystem (initially legacy JavaScript / Express). Mentoring of long-standing developers on new practices and technologies. Rewriting and rationalization of legacy microservices. Migration of internal CommonJS libraries to TypeScript libraries that are future-ready while remaining backward-compatible with legacy CJS deployments. Creation of an extended library of recurring features for NestJS applications, including: A NestJS application creation wrapper for AWS Lambda, with standardized multi-input handling (HTTP, SQS, SNS, Cron) and numerous modular plugin-based features. NestJS services for SNS / SQS (AWS) event multiplexing and demultiplexing. Strongly typed, data-safe NestJS services encapsulating legacy JavaScript components. Reusable guards and interceptors. Creation of a library of composable mocks, simplifying the construction of unit test scenarios. Implementation of an abstraction layer on top of Sequelize, enabling automatic inference of TypeScript types for queries, including recursive includes.

Frontend design of a proof-of-concept and mentoring of a junior developer. Conversion of an old JS codebase to a state-of-the-art TS codebase with latest libraries.

Architecture of electronic cards networks. Design and manufacture of PCBs. Sourcing of mechanical and electronic components. R&D of pressure sensors and LED light diffusion. 3D modeling and printing of technical plastic components.

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.

Rewriting of the admin panel of the customer's project, and enhancement of the backend for supporting new requirements.

Video player for language learners with dual subs, instant translation, export to Anki, navigation by dialog, etc (WPF C#) https://flashyplayer-website.vercel.app

Android Native, Ionic / React Hooks.

Corkscrew is an app that helps you choose the best wine in a restaurant or a wine shop. Rule-based fuzzy wine identification pipeline (ES6, NodeJS, ElasticSearch) Eshop crawling (ES6, NodeJS, nightmare) App backend (ES6, NodeJS, Express, MongoDB) Staff dashboard (ES6, AngularJS) Database administration

Among a small team of researchers and engineers, I researched AI algorithms, convolution neural networks with supervised / unsupervised / reinforcement learning. I developed and tested new ideas with either Octave or C#/CUDA. I've also developed tools to visualize and monitor network behaviors.

End-of-study internship. Research on photometry-based control of digital camera settings (C++, OpenCV)

Conception et développement d'un portail d'information web 2.0

Decouvrir Paname Jeu interactif pour découvrir la ville de Paris en empruntant des lignes de métro virtuelles. Chaque station du métro est un lieu magique de Paris. Dans le cas d'un bon restaurant, des tickets à prix réduit peuvent être achetés via Paypal. Les commerçants possèdent leur propre backoffice afin de gérer les commandes. L'inscription peut se faire en un clic via Facebook Connect. beta.decouvrir-paname.fr

Programmation d’un réseau social web 2.0 pour professionnels du développement durable codé en PHP/MySQL/AJAX. Affichage d'articles, gestion des utilisateurs, de leurs publications. Création de forums d'échange.