Joe Fioti
Co-Founder, CEO at Luminal (YC S25)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJoe Fioti is a founder and software leader with a decade of experience building deep systems and AI tooling from research to product. As Co-Founder and CEO of Luminal (YC S25) and founder of prior AI startups, he blends hands-on engineering—contributing to deep-learning Rust libraries with tensor and matrix operations—with product leadership in San Francisco. His background includes microcode architecture and simulation at Intel and engineering roles in defense and academia, giving him a rare mix of low-level systems expertise and machine-learning fluency. He teaches and launches teams, consistently shipping robust infrastructure for ML workloads while compiling ambitious visions into working systems.
10 years of coding experience
5 years of employment as a software developer
S25, S25 at Y CombinatorComputer Science, Machine Learning, Computer Science, Machine Learning at Penn State UniversityDallas Senior High School
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
matrix-multiplication10
autodiff10
machine-learning10
deeplearning-ai10
tensor10
rust10
deep-learning10
autograd10
neural-network9
gpu8
Programming languages (10)
Github contributions (5)
coreylowman/dfdx
Jul 2022 - Jul 2022
Deep learning in Rust, with shape checked tensors and neural networks
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 reviews, 16 commits, 7 PRs in 9 days
Contributions summary:Joe primarily contributed to the core functionality of the `dfdx` repository, focusing on implementing mathematical operations and features relevant to deep learning in Rust. Their work included adding functions for matrix multiplication and broadcast operations, along with creating and integrating tests. These additions enhance the library's capabilities for tensor operations, which is essential for building neural networks and supporting deep learning applications.
ndarraybackpropagationdeep-learningrustneural-networks
jafioti/luminal
Jul 2023 - Mar 2025
Deep learning at the speed of light.
Contributions:2 releases, 24 PRs, 715 pushes in 1 year 8 months
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.