Hi! I'mWilliam Scalabrea Staff Software Engineer based in Paris
See my work708 contributions this year·★ 31
About
William Scalabre is a full-stack software engineer based in Paris, France. He builds scalable, production-grade web applications with React, Next.js, Node.js, NestJS and TypeScript, and has delivered products across telecommunications, e-learning and sovereign-cloud environments. He cares about clean architecture, performance and a great user experience.
I ship things that move real business metrics, not just close tickets
Based in Paris (CET). I work in English and French, on site or remote
Speaker at a Node.js meetup and open-source contributor (Nivo)
My tech stack
Currently building: Stock Signals, strategy signals from daily market data
Let's build something that lasts
My recent projects
Stock Signals
Strategy signals leverage daily data for smart, effortless trading decisions and consistent results
View project
Être Free - Employer branding website
An employer branding site highlights culture, values, benefits, and careers to attract top talent
View project
Portail Free - News Website
The main page for Free.fr clients, featuring news and company updates
View project
Coorpacademy - E-Learning Platform
A corporate e-learning platform for employee training and performance growth
View project
My work experiences
Staff Engineer - Numspot (Sovereign Cloud Provider)
Implemented frontend analytics and error tracking to give the team clear visibility into product usage and runtime issues.
Contributed to deploying the Numspot console onto a SecNumCloud (ANSSI-qualified sovereign) environment.
Gave a meetup talk on generating a properly typed TypeScript SDK from OpenAPI specifications.
Fullstack Developer - Free (Telecommunications Company)
Worked on the development and maintenance of web applications designed to enhance communication and assistance.
Engineered an AI-driven speech-to-text system that converted customer audio messages into actionable insights, significantly improving the efficiency of service assistance processes.
Fullstack Developer - Coorpacademy by Go1 (E-Learning Innovator)
Developed and maintained a cutting-edge web and mobile e-learning platform.
Managed AWS Lambda functions to enable seamless serverless operations and played a pivotal role in building an Elasticsearch index to enhance search capabilities and optimize user experience.
Front-end Developer - Pricemoov (Smart Pricing Solutions)
Designed and implemented new features for an advanced pricing platform.
Delivered technical solutions while establishing robust testing processes to ensure the reliability and performance of deployed features.
Software Architect (Junior) - Bouygues Telecom (Telecommunications Company)
Developed high-performing internal and external web applications.
Contributed to the Design System by implementing new ReactJS components and actively participated in innovation initiatives within the Editorial DSI/Innovation Committee.
COVIZ Core contributor - CNRS (Partnership with the French National Centre for Scientific Research)
Created an impactful data visualization web app that empowered a military hospital to combat COVID-19 effectively.
Speaking
OpenAPI + Node.js: generating a robust SDK in a few commands
Node.js Paris · Nov 27, 2025
View event →Open source
I contribute fixes and improvements to the open-source libraries I use in production, including Nivo.
See all my contributions →