WCSingapore
Machine Learning Engineer
WC-022Datasheet · Rev. 2026

Wei Chen

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

Status: Open to lead roles in forecasting

Features

  • PyTorch
  • LLMs
  • Retrieval & ranking
  • Evaluation
  • MLOps
  • Python
  • Kubernetes
  • Vector search

Description

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.

Absolute maximum ratings

ParameterRating
requests a day30M
inference cost−58%
search conversion+14%

Pin configuration

  1. Machine Learning Engineer, Lumen Logistics2022–Present1
  2. Data Scientist, GrabFood2018–20222
  3. 3

Wei Chen

  1. 6MSc Computer ScienceNanyang Technological University · 2018
  2. 5
  3. 4

Left: appointments · Right: qualifications

Field reports

“Wei shipped the search improvement our users had wanted for two years.”
Head of Product, Client