Matthias Etienne
Co-Founder, CEO at Upstart
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolMatthias Etienne is a seasoned technology leader and entrepreneur with 15+ years building and scaling high-throughput, real-time platforms across adtech, mobile engagement, and SaaS. As Co-Founder and CEO of Upstart and former VP/Director roles at Spacefill, Airship and Accengage, he has led teams through acquisitions, GDPR-driven challenges, and platforms handling hundreds of thousands of messages per second. He combines hands-on engineering—demonstrated by deep contributions to the Caporal.js CLI framework improving tests, build processes and usability—with strategic delivery of CI/CD, monitoring and organizational scaling. Comfortable operating between product, infra and cross-country teams, he has repeatedly turned constrained engineering teams into acquisition-ready businesses. Based in Paris, he is self-taught with a pragmatic, results-oriented approach and a knack for stabilizing high-traffic systems under pressure. A detail often missed: he pairs founder-level strategic vision with ongoing low-level technical work, from argument parsing fixes to release scripting.
15 years of coding experience
17 years of employment as a software developer
Engineer's degree Information Technology, Engineer's degree Information Technology at Autodidact
English, French
Github Skills (17)
command-line-interface10
autocomplete10
typescript10
argument-parsing10
typescript-types10
command-line10
automated-tests10
nodejs10
typescripts10
cli10
scripting9
cicd9
shell9
script9
sh9
Programming languages (9)
Github contributions (5)
mattallty/Caporal.js
Feb 2017 - Jun 2022
A full-featured framework for building command line applications (cli) with node.js
Role in this project:
Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:1 review, 274 commits, 153 PRs in 5 years 4 months
Contributions summary:Matthias primarily focused on refactoring and enhancing the codebase, adding tests and improving code quality. They implemented fixes to the build process, including the release script and dependencies, and implemented features like auto-completion using tabtab. The user also addressed issues related to argument parsing and validator behavior, demonstrating a deep understanding of the project's core functionality. These contributions enhanced the framework's usability and stability.
full-featuredargument-parsingnoderedshell-scriptcli-applications
mattallty/base58
Jul 2013 - Apr 2014
Contributions:12 commits, 1 issue in 10 months
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