Shahbaz Youssefi
Senior Software Developer at Google
Longueuil, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolShahbaz Youssefi is a Senior Software Developer with 13 years of deep C/C++ and low-level systems experience, currently working on the Vulkan backend of ANGLE at Google and collaborating with the Khronos Vulkan workgroup. He has a strong track record in graphics and real-time software, contributing significant backend and validation-layer work to high-profile open-source projects such as RenderDoc, SPIRV-Tools, glslang and SwiftShader. His background spans AAA game engine graphics optimizations at Eidos-Montréal, real-time firmware for robotic and medical devices, and academic robotics research, giving him a rare blend of graphics, embedded, and systems expertise. Shahbaz is attentive to code quality and reproducible builds (e.g., removing non-deterministic macros in glslang) and has implemented nuanced Vulkan features like dynamic rendering and depth-clip control across multiple projects. Based in Longueuil, Quebec, he pairs technical rigor with creative interests—he’s an active Lindy Hop dancer and a long-time free-software advocate.
13 years of coding experience
7 years of employment as a software developer
Master of Science (M.Sc.), Mechatronics, Robotics, and Automation Engineering, 107/110, Master of Science (M.Sc.), Mechatronics, Robotics, and Automation Engineering, 107/110 at Università degli Studi di Genova / University of GenoaMaster of Science (M.Sc.), Mechatronics, Robotics, and Automation Engineering, 107/110, Master of Science (M.Sc.), Mechatronics, Robotics, and Automation Engineering, 107/110 at Warsaw University of TechnologyBachelor of Science (B.Sc.), Computer Software Engineering, 17.17/20, Bachelor of Science (B.Sc.), Computer Software Engineering, 17.17/20 at University of Tehran
English, Persian, Italian, French
Github Skills (29)
vs-extension10
spirv10
debugging10
vulkan10
c-language10
shader10
validators10
graphics-engine10
glsl10
graphic10
compiler-compiler10
api10
renderdoc10
graphics-programming10
disassembly10
Programming languages (17)
Github contributions (5)
google/angle
Jan 2019 - Jan 2023
A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:111 commits, 3 comments in 4 years 1 month
Contributions summary:Shahbaz's contributions primarily focused on implementing and refining features within the ANGLE project. They made changes related to Vulkan, including adding support for features like the KHR_dynamic_rendering, VK_EXT_host_image_copy, and the GL_ARM_shader_framebuffer_fetch_depth_stencil extensions. They also refactored and optimized various Vulkan-related functionalities such as image management, pipeline creation, and memory management for improved performance.
androidioslinuxopengl-eswindows
KhronosGroup/SPIRV-Tools
Apr 2019 - Nov 2022
Role in this project:Back-end Developer
Back-end DeveloperContributions:34 reviews, 20 commits, 38 PRs in 3 years 7 months
Contributions summary:Shahbaz primarily contributes to the SPIR-V tools project by making changes related to the disassembler and diff tools. Their work includes refactoring the disassembler code for reusability, introducing a new `spirv-diff` tool for comparing SPIR-V modules, and stabilizing its output through algorithm reimplementation, memory usage optimization, and ensuring output consistency. The user's contributions also involved refining the handling of OpSpecConstant array sizes and SpecConstantComposite matching.
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