Jason Lopatecki
Founder - CEO at Stealth
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJason Lopatecki is a serial technical founder and CEO who has taken startups from garage projects to IPO, most notably co-founding TubeMogul and building Arize AI into the market leader in ML observability. He combines deep systems and research chops—from ASIC/FPGA and distributed big-data architectures to modern ML, embeddings, and LLM work—with a proven commercial track record of multiple product lines exceeding $100M in sales and a 30x return to angel investors. Jason scales engineering and product teams to solve complex problems in programmatic advertising, AI model monitoring, and search/indexing, and retains hands-on fluency in languages from Python and C++ to Verilog. Based in San Francisco and Berkeley-educated in EECS, he brings entrepreneurial grit, a systems-first mindset, and a penchant for turning advanced AI research into robust, revenue-generating products.
6 years of coding experience
21 years of employment as a software developer
Bachelor of Science (BS) EECS - Electrical Engineering and Computer Science, Bachelor of Science (BS) EECS - Electrical Engineering and Computer Science at University of California, Berkeley
Github Skills (21)
langchain10
datasets10
prompt-engineering10
openai10
llmops10
anthropic10
google-colaboratory9
machine-learning7
deep-learning7
gradient-boosting6
shapley6
shap6
vertex6
haystack5
python5
Programming languages (2)
Github contributions (5)
jlopatec/phoenix
Sep 2023 - Sep 2024
ML Observability in a Notebook - Uncover Insights, Surface Problems, Monitor, and Fine Tune your Generative LLM, CV and Tabular Models
Contributions:36 pushes, 30 branches in 1 year
Arize-ai/LLMTest_NeedleInAHaystack
Dec 2023 - Apr 2024
Doing simple retrieval from LLM models at various context lengths to measure accuracy
Contributions:9 PRs, 18 pushes, 10 branches in 3 months
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