About

Iterating on AI systems, amplifying organizations and teams.

I design, build, and operate ML/recommender/LLM systems on the job.

In my free time, I tinker on personal prototypes below.

Experience

Amazon
ml
recsys
llm
e-commerce

2020 - Now

Senior Applied Scientist

• RecSys: Real-time retrieval, bandit ranking, tag-based interactive recs, search [1]
• LLMs: Evals, finetuning, summarization, hallucination detection, org education [2]

UCare.ai
tabular ml
sequential modeling
healthtech

2018 - 2019

Machine Learning Lead

• Chronic disease prediction, insurance fraud detection, hospital bill prediction [1][2]

Alibaba/Lazada
recsys
tabular ml
e-commerce

2015 - 2018

VP, Machine Learning

• Built & led a team of 20+ scientists and MLEs [1]
• Facilitated Alibaba-Lazada merger; executed 9-month tech migration [2]
• Search & RecSys [3], product classification, review spam detection, push notifications

IBM
tabular ml
recsys
consulting

2013 - 2015

Data Scientist

• Anti-money laundering, social media analytics, recommender systems

Stack

python
scala
typescript
nextjs
docker
aws
spark
pytorch
opensearch