Live · Singapore

Wei Chen

Machine Learning Engineer

AI features that work in production, not just in notebooks.

01 · requests a day

30M

02 · inference cost

−58%

03 · search conversion

+14%

Summary

I build and run ML systems: retrieval, ranking and language-model features serving millions of requests a day.

I like measurable improvements, good evaluation sets and cheap inference.

Track record

  1. 2022 → Present

    Machine Learning Engineer · Lumen Logistics

  2. 2018 → 2022

    Data Scientist · GrabFood

Toolkit

  • PyTorch
  • LLMs
  • Retrieval & ranking
  • Evaluation
  • MLOps
  • Python
  • Kubernetes
  • Vector search
“Wei shipped the search improvement our users had wanted for two years.”
Head of Product · Client