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Stefan Webb, PhD

stefanwebb.me linkedin.com/in/stefan-webb github.com/stefanwebb youtube.com/@stefan-webb

Selected Portfolio

Video (all produced end-to-end)

Short-form (likewise)

Writing (all written without AI assistance)

Events

Open Source (AI-assisted, using Claude Code)

Docs & Tutorials

Experience

Oumi, Lead Developer Relations Engineer

  • Own the developer-facing surface end to end: product and technical videos, marketing website, webinars, industry booths, product documentation, blog, newsletter, and a hosted agent for scaling developer relations processes.
  • Led two go-to-market product launches driving 10× marketing-site traffic and new top-of-funnel pipeline, the most recent reaching 50,000 views, 1,000 reactions, and 250 comments on LinkedIn.
  • Performed original research that formed the basis for a highly-cited NYTimes article, syndicated in Newsweek, NewsNation, NYPost, PCMag, Ars Technica, and a dozen other media outlets.

Zilliz, Developer Advocate

  • Chief evangelist in the Bay Area for Milvus, the leading open-source vector database.
  • Organized and spoke at twice-monthly meetups, industry conferences, webinars, and hackathons.
  • Wrote technical articles on RAG and agent methodology, multimodal semantic search, model evaluation, and research agents. A Deep Research piece reached the Hacker News front page and 50,000 Reddit views.

Startup Founder and Generative AI Advisor

  • Prototyped a web-app for generation and delivery of personalized educational content using fine-tuned LLMs.
  • Advised startup founders and investors in hedge funds, mutual funds, and sovereign wealth funds on Generative AI trends: training and inference costs, benchmark performance, open versus closed source, and rate of industry adoption.

Meta, Machine Learning Researcher

  • Spearheaded use of Bayesian statistical testing to improve the reliability of online experimentation.
  • End-to-end development of ML pipelines including large-scale data processing with Trino.

Twitter, Machine Learning Researcher

  • Applied ML Researcher collaborating with product teams in Revenue Science, Health, Experimental Data Science, and Interest Discovery to solve long-term ML challenges, pioneering graph-based neural networks.

Education

University of Oxford, Doctor of Philosophy

  • Awarded full funding by EPSRC for dissertation research at intersection of Bayesian statistics and deep learning, supervised by Prof M. Pawan Kumar and Prof Yee Whye Teh.

Skills

Publications

  1. Ben Chamberlain, James Rowbottom, Emanuelle Rossi, Stefan Webb, Maria Gorinova, and Michael Bronstein. GRAND: Graph Neural Diffusion. Thirty-eighth International Conference on Machine Learning (ICML2021). https://arxiv.org/abs/2106.10934.
  2. Benjie Wang, Stefan Webb, and Tom Rainforth. Statistically Robust Neural Network Classification. Thirty-seventh Conference on Uncertainty in Artificial Intelligence (UAI2021). https://arxiv.org/abs/1912.04884.
  3. Stefan Webb, Tom Rainforth, Yee Whye Teh, and M. Pawan Kumar. A Statistical Approach to Assessing Neural Network Robustness. Seventh International Conference on Learning Representations (ICLR2019). https://arxiv.org/abs/1811.07209.
  4. Stefan Webb, Adam Golinski, Robert Zinkov, N. Siddarth, Tom Rainforth, Yee Whye Teh, Frank Wood. Faithful Inversion of Generative Models for Effective Amortized Inference. Thirty-second Conference on Neural Information Processing Systems (NeurIPS2018). https://arxiv.org/abs/1712.00287.
  5. Leonard Hasenclever, Stefan Webb, Thibaut Lienart, Sebastian Vollmer, Balaji Lakshminarayanan, Charles Blundell, and Yee Whye Teh. Distributed Bayesian Learning with Stochastic Natural-gradient Expectation Propagation and the Posterior Server. JMLR 18, 1–37 (2017). http://arxiv.org/abs/1512.09327.