John Heyer is a seasoned machine learning engineer with 17 years of experience, blending academic rigor from MIT (MEng CS & AI) with hands-on product work across startups and large tech. He has driven ML research into production at Amazon (improving Alexa QA), helped launch models and analytics at ChipBrain, and now builds Models-as-a-Service and AI security capabilities at Scale AI and depthfirst. Comfortable across research and engineering, he has taught MIT’s Intro to ML and applied Bayesian inference and CNNs in high‑impact scientific projects like NuSTAR and IceCube. John’s background shows a pattern of turning advanced probabilistic and deep learning methods into robust services and tools for enterprise and consumer applications. Based in San Francisco, he pairs founding‑team grit with enterprise-grade ML engineering and a quirky fondness for bacon that suggests a pragmatic, personable collaborator.
17 years of coding experience
6 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Massachusetts Institute of Technology
Contributions:25 pushes, 3 branches in 8 years 8 months
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John Heyer - Founding Member Of Technical Staff at depthfirst