Kai Hayashi in

Kai Hayashi

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Member of Technical Staff at OpenAI
📍 United States

Kai Hayashi is a Member of the Technical Staff at OpenAI, focusing on workload scheduling and ML systems. He previously had a long tenure at Twitch, where he rose to Principal Software Engineer, launched the AWS service Amazon IVS, and led efforts in video systems and platform identity. He holds an MS from Northwestern University in Computer Science Theory and Economics.

He built an in-house analytics system at Twitch from scratch that processes over 60 gigabytes of data per minute.

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Experience
13 Years
Current Role
Member of Technical Staff
Location
United States
Personality Overview

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Priorities

Topics Kai cares about

ML Systems Orchestration
His current role at OpenAI involves developing and managing the scheduling and orchestration of complex machine learning workloads.
Large-Scale Video
As a principal engineer at Twitch, he launched Amazon IVS and led the video mapping team, demonstrating deep expertise in high-performance video delivery systems.
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Career

Work history

9-2023
Member of Technical Staff
OpenAI
6-2018 - 2-2022
Principal Software Engineer
Twitch
7-2016 - 6-2018
Software Engineer Lead
Twitch
2-2015 - 7-2016
Engineering Manager
Twitch
9-2013 - 2-2015
Analytics Engineer
Twitch
In the press

Media appearances

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Education
2010 - 2011
MS
Northwestern University
2007 - 2011
BS
Northwestern University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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