Joffrey Jaffeux
Senior Software Engineering at Freelance
Montpellier, Occitania, France
Summary
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Rockstar🎓
Top SchoolJoffrey Jaffeux is a senior software engineer and startup CTO with 14 years of experience building products from idea to scale, including founding a company and launching an iOS app that reached the Top 10 in France. He blends hands-on full‑stack development (Rails, React/Ember, Elixir, RubyMotion/React Native) with product and technical strategy, API design, and team leadership across local and remote contexts. A long-time open-source contributor, he has made notable fixes and feature work in high-profile projects like Discourse and CodeIgniter, and helped craft the first native Discourse mobile app. Comfortable switching between engineering, management, and customer-facing roles, he also brings consulting experience delivering large IT migrations and change programs for enterprise clients. Based in Montpellier, he pairs entrepreneurial grit with deep practical knowledge of mobile and web ecosystems, and a knack for making cross‑platform UIs and toolchains work in production.
14 years of coding experience
CSPO Certification, Management, CSPO Certification, Management at LitheSpeedFunctional Programming Principles in Scala, 100, Functional Programming Principles in Scala, 100 at Ecole polytechnique fédérale de LausanneManagement, Management at TDL EntrainementBac +5, Management et Entrepreneuriat, Bac +5, Management et Entrepreneuriat at ESSCAMaster business in China, Economie, Master business in China, Economie at ESAI
French, English
Stackoverflow
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Github Skills (17)
unit-testing10
ruby-rails10
javascript10
mobile-development10
testing10
rails10
android-sdk10
android-development10
ruby10
php10
ipv610
ember10
build-automation9
postgresql8
css7
Programming languages (11)
Github contributions (5)
discourse/discourse
Jun 2017 - Jan 2023
A platform for community discussion. Free, open, simple.
Role in this project:
Back-end & Front-end Developer
Back-end & Front-end DeveloperContributions:3759 reviews, 2230 commits, 5607 PRs in 5 years 8 months
Contributions summary:Joffrey primarily focused on fixing bugs and implementing features within the Discourse platform. Their contributions involved making improvements to the chat functionality, specifically related to ensuring users could view their own reactions across multiple tabs and correcting display issues. They also worked on improving the UI, with specific changes to the appearance of messages, and made code refinements to address a variety of performance-related issues. The user demonstrates contributions across both front and back-end elements within the Discourse codebase.
discourserailsforumjavascriptruby
HipByte/RubyMotion
Aug 2013 - Apr 2016
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:18 commits, 5 PRs, 1 branch in 2 years 8 months
Contributions summary:Joffrey primarily focused on adding support for Android-specific configurations within the RubyMotion project. Their contributions include implementing support for support libraries, managing optional features, and integrating vendor projects to facilitate Android application development. They modified the build process by incorporating support libraries and updating project templates to improve integration and flexibility for Android projects. Additionally, they fixed a typo and refined the error messages.
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