Florian Zitzelsberger
Software Engineer at Valve corporation
Berkeley, California, United States
Summary
👤
Senior🎓
Top SchoolFlorian Zitzelsberger is a seasoned software engineer and technical leader with 12 years of experience specializing in computer graphics, performance optimization, and low-level frameworks. Based in Berkeley, he rose through engineering ranks at Pixar—eventually serving as Director of Engineering—working on core systems like OpenUSD where he improved threading, concurrency, and memory behavior in the pxr::Work library. Florian combines backend systems rigor with hands-on full-stack work, as shown by his SmartThings dashboard project that ties frontend widgets to backend APIs. Now at Valve, he continues to apply deep systems expertise to high-performance, real-time challenges. Colleagues know him for tackling subtle concurrency and timing issues that often go unnoticed until they affect large-scale pipelines. His background in tutoring and early game-programming work reflects a practical, mentoring approach to complex technical problems.
12 years of coding experience
17 years of employment as a software developer
B.Sc., Computer Science, B.Sc., Computer Science at California State University, Fullerton
English, German
Github Skills (18)
javascript10
c-language10
coffeescript10
multithreading10
thread10
hyper-threading10
threaded10
cprogramming-language10
concurrency10
back-end-development9
front-end-development9
performance-optimization9
oauth9
backend9
html8
Programming languages (5)
Github contributions (5)
FlorianZ/hadashboard
Jul 2014 - Feb 2016
Dashing dashboard for SmartThings.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:131 commits, 1 PR, 5 pushes in 1 year 7 months
Contributions summary:Florian implemented significant changes to the `hadashboard` project, introducing features related to SmartThings integration. Their work includes the creation of new widgets for temperature, mode, and other SmartThings-related devices. They also modified existing widgets and the overall layout of the dashboard, showcasing a focus on both the frontend and backend aspects of the project. The user clearly worked on connecting the frontend to the backend smartthings API.
herokusmartthingsherokuappdashingdashboard
PixarAnimationStudios/OpenUSD
Aug 2016 - Jun 2019
Universal Scene Description
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits, 4 PRs, 79 comments in 2 years 10 months
Contributions summary:Florian primarily focused on improving the codebase related to thread management and concurrency within the OpenUSD framework. Their contributions involved ensuring the correct behavior of thread limits set via environment variables and API calls, particularly within the `pxr::Work` library. The user also addressed issues related to memory allocation and fixed a typo in the code. They also worked on StageView performance by accurately reporting the timing of the first image generation.
universal-scene-descriptionscene
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