Catalin Voss is a serial founder and technical leader with 12 years of experience building AI-driven products and startups, currently serving as Co-Founder & CTO of Ello in San Francisco. He blends deep research-level expertise from Stanford (PhD in AI, on leave) with hands-on engineering, having led and sold ventures like DukaConnect and Sension and contributed production-grade code to flagship open-source ML projects such as Hugging Face Transformers and Mozilla DeepSpeech. His work spans computer vision, speech, and ML infrastructure—practical systems that run on-device and at scale—and he’s advised startups and VCs on productizing research. Notably, he spearheaded the Autism Glass Project at Stanford, demonstrating a track record of turning academic research into real-world assistive technology.
12 years of coding experience
8 years of employment as a software developer
High School Abitur, High School Abitur at Leonardo da Vinci Gymnasium, Neckargemünd, Germany
PhD (on leave) Artificial Intelligence, PhD (on leave) Artificial Intelligence at Stanford University
DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers.
Role in this project:
ML Engineer
Contributions:24 reviews, 88 commits, 13 PRs in 5 months
Contributions summary:Catalin primarily contributed to the DeepSpeech speech-to-text engine by making changes to the training scripts and utility functions. Their work involved modifications to the inference graph, incorporating remote I/O capabilities for file access, and optimizing audio processing components. They also addressed imports and dependencies and refactored some aspects of the code.
A system for quickly generating training data with weak supervision
Role in this project:
Back-end Developer & Data Scientist
Contributions:26 commits, 10 PRs, 18 comments in 7 months
Contributions summary:Catalin primarily contributed to the back-end of the Snorkel system by optimizing database interactions and improving the efficiency of data processing. Their work involved adding indexes to foreign keys to speed up cascade deletes and refactoring the progress bar functionality within the UDF runner to support multi-threading and notebook compatibility. Additionally, the user made modifications related to scoring metrics within the learning utilities, suggesting an active role in the machine learning aspects of the project.
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