Olivier Goffart
Co-Founder at SixtyFPS GmbH
Berlin, Germany
Summary
🤩
RockstarOlivier Goffart is a seasoned co-founder and software engineer with 23 years of experience building native GUI toolkits and developer tooling from Berlin. He co-founded Woboq and Slint (formerly SixtyFPS), driving projects that bridge C++, Rust and JavaScript to deliver high-performance native UIs and robust build infrastructure. Olivier’s contributions span deep backend work—fixing compiler and memory-safety issues in projects like Clang and Qt—and frontend/rendering performance improvements in the Slint UI toolkit. He combines systems-level craftsmanship (addressing undefined behavior and soundness in low-level code) with practical product sensibilities around syncing, permissions and developer workflows. Known for improving build systems and documentation as much as runtime stability, he brings an unusual blend of toolsmith precision and UI-focused engineering.
23 years of coding experience
Github Skills (37)
debugging10
debug10
c-language10
cargo10
qt10
api-design10
architecture10
memory-management10
cmake10
software-quality10
php10
compiler-compiler10
qmake10
compiler10
qml10
Programming languages (20)
Github contributions (5)
slint-ui/slint
May 2020 - Jan 2023
Slint is a declarative GUI toolkit to build native user interfaces for Rust, C++, or JavaScript apps.
Role in this project:
Backend Developer
Backend DeveloperContributions:10 releases, 4173 reviews, 3457 commits in 2 years 9 months
Contributions summary:Olivier contributed to the Slint project by addressing clippy warnings and fixing soundness issues in the vtable crate, indicating a focus on Rust backend development and code quality. They also worked on improving UI behavior, and enhancing the performance of the rendering, suggesting involvement in both the core library and the application's user interface, potentially indicating a full-stack developer role. Furthermore, the user has improved the quality of the code in the runtime and the documentation.
cppdesktop-applicationsrustjavascriptfluid
KDAB/codebrowser
Oct 2012 - Jan 2021
Woboq CodeBrowser
Role in this project:Back-end Developer
Back-end DeveloperContributions:364 commits, 19 PRs, 107 pushes in 8 years 4 months
Contributions summary:Olivier primarily focused on code maintenance, addressing spelling errors in multiple files, including JavaScript, C++, and patch files. Their contributions also involved stylistic adjustments to CSS files, specifically tailoring the QtCreator stylesheet to the code browser's elements and a minor change to the styling. Additionally, they adapted a clang patch to work with the 3.2 branch and made adjustments to code browser.js to handle Google AdSense.
phpwoboqclangllvm
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.