Senior Director Of Engineering (Machine Learning And Data Science)
Current
Jan 2024 - Present
AeroLeads people directory · profile
Wei Liu Email & Phone Number
Engineering Director at Sift | ML Platform, MLOps, Data Science
at
Sift
1 work email found
@my.fit.edu
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 86%
Current company
Role
Engineering Director at Sift | ML Platform, MLOps, Data Science
Location
Seattle, Washington, United States
Who is Wei Liu? Overview
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Quick answer
Wei Liu is listed as Engineering Director at Sift | ML Platform, MLOps, Data Science at Sift, based in Seattle, Washington, United States. AeroLeads shows a work email signal at my.fit.edu and a matched LinkedIn profile for Wei Liu.
Wei Liu previously worked as Senior Director of Engineering (Machine Learning and Data Science) at Sift and Engineering Director (ML Platform, MLOps, and Data Science) at Sift. Wei Liu holds Ph.D., Computer Science from Florida Institute Of Technology.
Company email context
Email format at Sift
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*@my.fit.edu
68% confidence
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Profile bio
About Wei Liu
As an Engineering Director at Sift, I lead the vision and execution of building a next-generation ML platform that powers fraud detection and content moderation products for thousands of customers worldwide. I also oversee the machine learning operations and data science teams that ensure model stability, data quality, and innovation at the Internet scale. With a Ph.D. degree in computer vision and machine learning and over 10 years of industry experience, I have a passion for solving complex and impactful business problems using data and ML technologies. I have worked across diverse domains and roles, from computer vision and natural language processing to search and recommendation systems, from researcher and engineer to data scientist and manager. My broad and deep expertise helps me empathize with and empower all the stakeholders and contributors in this highly interdisciplinary field and build effective teams, coalitions, and a shared vision.
Current workplace
Wei Liu's current company
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12 roles
Wei Liu work experience
A career timeline built from the work history available for this profile.
Engineering Director (Ml Platform, Mlops, And Data Science)
Vision and execution of building next-generation ML platform.Machine learning operations to ensure model stability and address data drift problems at the Internet scale.Long-term innovation in machine learning modeling, fraud behavior analysis, and data science research.10+ patents and more to come
Oct 2022 - Jan 2024
Jul 2021 - Oct 2022
Head Of Data Science
Building and managing a high-performing data science teamResearch & development of AI/ML technologiesBot detection, graph, and behavior model
Jul 2020 - Jul 2021
Principal Data Scientist
Building AI models for spam/scam detection in a highly adversarial environment.Researching & prototyping text & image deep learning models to detect and cluster spam content, fake profile, and bot activities, etc.Provide input and technical guidance in ML system architecture and production deployment.
Mar 2019 - Aug 2020
Technical Advisor (Machine Learning)
NLP and content recommendation using LLM and transformers
Dec 2021 - 2023
Principal Machine Learning Engineer
Design nextgen ML applications using Spark, Scala, H2O, and AWS.Shape personalized home buying experiences through intelligent and data-driven algorithms.Improve and automate home buying and selling decisions in Zillow Offer.Connect data science to engineering best practices, and deliver high-quality ML systems from prototype to production.Drive technical.
Sep 2016 - Mar 2019
Software Development Engineer Ii
Natural language processing & understanding, machine learning, Big Data technologiesBing Local Data extraction, PowerBI natural language query enginePowerBI project was mentioned in executive memo:http://www.microsoft.com/en-us/news/Press/2013/Jul13/07-11memo.aspx
Sep 2012 - Sep 2016
Software Development Engineer
Design and develop intelligent systems to improve Amazon catalog item data.Develop data fusion/reconciliation algorithms that produce descriptive yet concise item data from multiple heterogeneous data sources.Programming in Java and Python to process Big Data on Amazon EMR and other platforms.First-prize winner of Amazon 2012 competition in machine.
Oct 2011 - Sep 2012
Postdoctoral Research Fellow
Research and develop algorithms for registering and analyzing 3-D medical images.
Jun 2011 - Sep 2011
Doctoral Student & Teaching Assistant
Published 6+ peer-reviewed papers in top-tier conferences and journalsDeveloped a novel mesh-less graphics model for non-rigid deformation representation, with applications in shape and image registration.Developed a novel feature detector and descriptor for flow-field visualization and recognition.Developed a correspondence-less registration method using.
Aug 2007 - May 2011
Research Engineer
Zhong Tu Sci & Tech Ltd
Research and develop machine vision algorithms for product-inspection system.Lead a software group and help defining the overall software and system architecture.Shipped 3 products in a single year that fully automates industrial meter calibration (water meter and pressure meter). My algorithms read these meter in extremely noisy environment (foggy.
Jan 2006 - Aug 2007
2 education records
Wei Liu education
Ph.D., Computer Science
Florida Institute Of Technology
Master, Computer Science
Central South University
FAQ
Frequently asked questions about Wei Liu
Quick answers generated from the profile data available on this page.
What company does Wei Liu work for?
Wei Liu works for Sift.
What is Wei Liu's role at Sift?
Wei Liu is listed as Engineering Director at Sift | ML Platform, MLOps, Data Science at Sift.
What is Wei Liu's email address?
AeroLeads has found 1 work email signal at @my.fit.edu for Wei Liu at Sift.
Where is Wei Liu based?
Wei Liu is based in Seattle, Washington, United States while working with Sift.
What companies has Wei Liu worked for?
Wei Liu has worked for Sift, Upnext, Zillow, Microsoft, and Amazon.
How can I contact Wei Liu?
You can use AeroLeads to view verified contact signals for Wei Liu at Sift, including work email, phone, and LinkedIn data when available.
What schools did Wei Liu attend?
Wei Liu holds Ph.D., Computer Science from Florida Institute Of Technology.
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