Ashton Chew
Member of Technical Staff at Amazon AGI Labs
Work
I research RL and infra at Amazon AGI Labs.
Previously, I was a Founding Engineer at Theta, researching RL environments and building RL infra for tool use/computer use agents, and a Machine Learning Engineer Intern at Amazon AGI on the inference team.
Research
WARP: A Wrapper-Based, Adaptive, Realistic Pipeline for Reliable Web-Agent Robustness Testing
To appear at ICML 2026.
Theta (YC X25) Aug 2025 – May 2026
Founding Engineer
Researching automated RL envs and building RL infra for tool use and computer use agents.
thetasoftware.com Amazon AGI Labs May 2026 – Present
Member of Technical Staff
Working on RL infrastructure for agents.
labs.amazon.science Amazon AGI May 2025 – Aug 2025
Machine Learning Engineer Intern
Inference team. Efficient tool use, observability, and model eval infrastructure for Nova Sonic.
Won the first Amazon Global AI Expo Hackathon (600+ employees).