Julien Amsellem is a senior software engineer based in the Greater Paris area with a strong track record building tooling and 3D-focused applications across games, photography, robotics and simulation. With roots in C++, C# and Python and an engineering degree from ESIEA, he’s shipped production UI, engine and pipeline features at Unity, Ubisoft and DxO and led teams building complex plugin-based editors and real-time simulators. He brings over a decade of Agile practice and a knack for UX-driven tooling—recently contributing UI and usability improvements to Unity’s high-profile Graphics repository (VFX graph editor). Julien combines low-level algorithm and computer vision experience with front-end polish, and often bridges art and engineering to make technical workflows more usable. He’s equally comfortable architecting extensible systems and diving into nitty-gritty bug fixes that improve day-to-day developer experience.
4 years of coding experience
12 years of employment as a software developer
Engineer's degree, Computer Science, Engineer's degree, Computer Science at Ecole supérieure d'Informatique, Electronique et Automatique
Unity Graphics - Including Scriptable Render Pipeline
Role in this project:
Full-stack Developer
Contributions:73 reviews, 246 commits, 118 PRs in 1 year 6 months
Contributions summary:Julien primarily contributed to the user interface and usability of the VFX graph editor. They fixed UI bugs related to color pickers and inspector group headers, improved the node search results sorting, and reworked the toolbar design. Additionally, the user addressed various UX issues, such as making the "enter subgraph" feature more user-friendly and implementing a toggle to control animation in the preview. They also implemented the support for logarithmic slider.
Unity Graphics - Including Scriptable Render Pipeline
Contributions:13 commits in 12 days
renderpost-processingpipelinescriptableunity
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Julien Amsellem - Senior Software Engineer at Unity Technologies