Jason Liu

I am currently on sabbatical at South Park Commons, where I consult and advise fast growing startups on applied AI and tech strategy.

New York

jxnl

About

Check out my blog, if you are looking for my writing.

Work Experience

567
Consulting

2023 - Present

Owner / Consultant

Working with seed stage companies, helping founders with tech strategy, research, and infrastructure.

South Park Commons
Sabbatical

2023 - Present

Member

Exploring LLM tooling around structured extraction and self-hosting. Launched Youtube University and developing Journal, an AI-powered journaling application.

Stitchfix
System

2018 - 2023

Staff ML Engineer

  • Designed Flight framework, improving reliability, scalability, adopted by over 80% of organization, servicing 350 million daily requests. [1]
  • Led vision research, managed data acquisition, fine-tuned models, developed 300,000+ outfit dataset to power new Stitch Fix outfit recommender.
  • Developed product similarity search with multi-modal embeddings, boosting revenue by over $50 million annually. [2]

    • Facebook
    Data Science

    2017 - 2017

    Data Scientist

    Created algorithms for identifying harmful content and developed dashboards to detect malicious activities.

    New York University
    Research

    2015 - 2017

    Research Assistant

    Under Rumi Chunara, centered around public health and social media.

    Projects

    Instructor

    Structured extraction for LLMS using Pydantic, Over 30k monthly downloads on PyPI.

    python
    llms
    structured extraction

    Multimodal Search

    Lead computer vision research, and embedding search system using multi-modal embeddings powered by image, text, and impression data.

    Stitchfix
    pytorch
    representation learning
    search

    RecSys Framework

    Designed and implemented Flight, a recommendation framework that improved system reliability and scalability, handling over 350 million daily requests.

    devops
    python
    orchestration
    observability

    Journal

    AI-powered journaling application with long-term memory and semantic search.

    typescript
    prompt engineering

    Clients

    Rewind AI

    Rewind AI is a personal memory assistant that helps you remember, organize, and navigate your life.

    memory
    personal computing

    Naro

    Naro sits in the background, using contextual clues to proactively select the right content and messaging for each customer conversation, from emails to meetings.

    python
    prompt engineering
    sales

    Trunk Tools

    Trunk Tools addresses the skilled labor shortage in construction, enhancing workforce productivity through AI-based tools.

    construction
    technical advisor
    retrival

    Modal Labs

    Modal specializes in cloud functions, offering a platform for running generative AI models, large-scale batch jobs, and more.

    technical writing
    python

    Pydantic

    Pydantic provides data validation and settings management using Python type annotations, enforcing type hints at runtime with user-friendly error handling.

    technical writing
    python

    Weight & Biases

    Wandb (Weights & Biases) provides a platform for tracking machine learning experiments, offering tools for visualization, comparison, and collaboration in ML projects.

    technical writing
    education
    machine learning

    New Computer

    Dot by New Computer is an intelligent guide designed to help you remember, organize, and navigate your life.

    personal computing
    python

    Kay.ai

    Retrieve relevant context from the semantic web for your LLM apps with fully hosted embeddings.

    retrieval
    evals
    infrastucture
    python

    Education

    University of Waterloo

    2012 - 2017
    B.Math. Computational Mathematics and Statistics

    Skills

    Python
    Pytorch
    LLMs
    Prompt Engineering
    Structured Extraction
    Observability
    Developer Tools
    Machine Learning
    Data Science

    Press ⌘J to open the command menu