Yiming Chen

Machine Learning and Data Science

Seattle, Washington, United States

About

Experience

  • Machine Learning - Abuse at LinkedIn
    Mar 2024 - Present · 2 yrs 4 mos

  • Machine Learning/Risk Simulation at Gauntlet
    Jan 2023 - Feb 2024 · 1 yr 2 mos

  • Senior Manager Machine Learning Data Science Fraud at Brex
    Jun 2022 - Jan 2024 · 1 yr 8 mos

  • Senior Manager, Research Science (Machine Learning) at Amazon
    Jan 2017 - May 2022 · 5 yrs 5 mos

  • Director, Data Science at John Hancock Financial Services
    Dec 2015 - Jan 2017 · 1 yr 2 mos

    • Led a DS and DE team to build propensity to qualify, propensity to respond, and clustering models for the marketing department in Python (GBM, Clustering analysis, elastic net models) • Created visions and implemented projects in the big data technology, data infrastructure, web applications and modeling areas • Designed the data infrastructure (using MS SQL server, MS SQL Warehouse, PostgreSQL, Hadoop, Spark, and AWS) and web application framework such as Python Flask to automate marketing execution • Led the team to build visualization tools (Tableau, Shiny R, Python Bokeh) for marketing insights, customer profiles and decision trees • Built big data infrastructure and machine learning projects on Hadoop and Spark • Cooperated with the business team on various marketing campaigns and managed vendor relationship