William Eliot

William Eliot

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Mystic AI (YC W21)

Full-Stack Software Engineer
Apr 2021 - Dec 2022
Mystic AI (YC W21), Full-Stack Software Engineer

I joined Mystic AI (YC W21) as employee #3, back when the company was called Neuro AI. Like a precursor to FAL or Modal, we were building an API for generic ML compute. I was a wildcard engineer: deploying models, developing websites, managing servers (we had an on-prem GPU farm), writing docs, sorting through candidates, designing adverts, and running demos. 1,200+ commits across 30+ repositories in 19 months. I single-handedly wrote and deployed every public inference endpoint on our API, becoming one of the first in the market to help companies use open-source models like GPT-J in production. I worked on the Model Hub and the Pipeline dashboard from the first commit. As my own marketing play, I created playgrounds.ai, a free inference UI for generative models like DALL·E Mini. From GPU allocation in Python to Kubernetes infra handling, from figuring out CUDA kernels and quantisation to implementing DeepSpeed, I worked on everything, while being the main point of contact for all users too. Additionally, I wrote our docs, newsletters, and emails (and I built custom platforms for managing them all). I started partnerships between Mystic and EleutherAI, The Eye, PhilPapers, and Georgia Tech.

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