Joseph Savona
User Interface Engineer at Facebook
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJoseph Savona is a User Interface Engineer with 17 years of experience building full‑stack, high‑engagement web applications from product design through systems engineering. Based in San Francisco and a long‑tenured frontend engineer at Facebook since 2014, he excels at crafting intuitive, performant UIs and reliable data flows that scale. He contributes to notable open‑source projects like Relay—improving data handling semantics and connection refetch behavior—which reflects a deep understanding of React, hooks, and complex client data dependencies. Comfortable working independently or in teams, Joseph pairs strong communication with a pragmatic delivery focus and a knack for clarifying tricky edge cases in large codebases. Notably, his background spans both product UI polish and lower‑level language/tooling work, showing breadth from UX details to core utilities.
17 years of coding experience
4 years of employment as a software developer
B.S., Computer Science, B.S., Computer Science at New York University
Japanese
Stackoverflow
1,477reputation
32kreached
19answers
0questions
graphql
top-5%
Github Skills (23)
javascript10
css10
react10
ui-components9
rendering9
render9
url-routing9
wpgraphql9
fetchr9
fetcher9
fetch9
front-end-development9
wordpress-graphql9
viewcomponent9
html9
Programming languages (11)
Github contributions (5)
facebook/relay
Aug 2015 - Jun 2022
Relay is a JavaScript framework for building data-driven React applications.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:12 reviews, 559 commits, 248 PRs in 6 years 11 months
Contributions summary:Joseph contributed to the Relay framework, specifically by addressing inconsistencies in data handling and improving the behavior of connections with the `@module` and `@stream` directives. They implemented support for refetching data in connection components and enabled specific edge cases for handling data-driven dependencies, ultimately ensuring correct data rendering. Furthermore, the user worked on improving the consistency of the API and ensuring it's working as designed in different use cases.
javascript-frameworkreact-applications
skiplang/skip
Sep 2018 - Sep 2018
A programming language to skip the things you have already computed
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:14 commits, 5 PRs, 5 pushes in 6 days
Contributions summary:Joseph primarily focused on updating the project's website documentation and user interface. They updated the homepage text and formatting, including adding features and modifying the overall layout. The user also implemented links and corrected references within the documentation. Additionally, the user worked on core language utilities.
programming-language
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.