Jonathan Chuang is a skilled software engineer and machine learning expert with extensive experience in various technical roles. Currently serving as a Member of Technical Staff at Anthropic since June 2025, Chuang previously held similar positions at Magic from March 2024 to May 2025, and worked as an ML Systems Consultant focusing on real-time diffusion models in late 2023. Notable contributions include being a core contributor to PyTorch, recognized as the top contributor in October and November 2023, with over 500 contributions, as well as a software engineer at LlamaIndex and RisingWave, where contributions targeted LLM applications and distributed SQL stream processing. Chuang co-founded Sanctum, launching a successful stake pool product, and has a background in applied cryptography from cLabs, improving zero-knowledge proof libraries. Chuang completed a BA in Mathematics at the University of Cambridge from 2017 to 2020.
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