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Brett Zhiyuan Chen Email & Phone Number
Member of Technical Staff, Tech Lead at AI Team
at
Perplexity
2 work emails found
@google.com
2 phones found area 312
LinkedIn matched
✓ Verified July 2026
4 data sources
Profile completeness 100%
Current company
Role
Member of Technical Staff, Tech Lead at AI Team
Location
San Francisco Bay Area, United States
Company size
Who is Brett Zhiyuan Chen? Overview
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Quick answer
Brett Zhiyuan Chen is listed as Member of Technical Staff, Tech Lead at AI Team at Perplexity, a with 1372 employees, based in San Francisco Bay Area, United States. AeroLeads shows a work email signal at google.com, phone signal with area code 312, and a matched LinkedIn profile for Brett Zhiyuan Chen.
Brett Zhiyuan Chen previously worked as Member of Technical Staff at Perplexity and Senior Staff Software Engineer, Tech Lead Manager at Google Search Ads at Google. Brett Zhiyuan Chen holds Ph.D. In Computer Science, Text Mining, Machine Learning, Data Mining, And Natural Language Processing from University Of Illinois Chicago.
Company email context
Email format at Perplexity
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*@google.com
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AeroLeads found 2 current-domain work email signals for Brett Zhiyuan Chen. Compare company email patterns before reaching out.
Profile bio
About Brett Zhiyuan Chen
► Tech Lead & AI Expert with 15+ years of experience in Machine Learning, including 8+ years leading MLdevelopment and product innovations to improve large-scale Ads Delivery and Recommendation systems.► Designed and drove ML developments that generated $XB in incremental revenue and scaledengineering productivity.► Identified strategic opportunities and leveraged GenAI and LLMs to optimize user experience.► Built strong relationships with cross-functional teams across Product, Research, Data Science, Legal, Sales, and Finance.► Created high performing teams through hiring, growing high performers and active performancemanagement of low performers.► PhD expert in Machine Learning, Natural Language Processing, Text Mining, and Data Mining. Wrote and published the book "Lifelong Machine Learning". Published papers in ICML, KDD, ACL, and IJCAI. My Google scholar: https://scholar.google.com/citations?user=tCitBzMAAAAJ&hl=en&authuser=1
Listed skills include Machine Learning, Natural Language Processing, Data Mining, Text Mining, and 12 others.
Current workplace
Brett Zhiyuan Chen's current company
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Perplexity
10 roles · 11 years
Brett Zhiyuan Chen work experience
A career timeline built from the work history available for this profile.
Member Of Technical Staff
Senior Staff Software Engineer, Tech Lead Manager At Google Search Ads
CurrentKeywords: Ads Ranking, Machine Learning, Deep Learning, Ads Optimization, Ads Auction, Recommendation, Ads Experimentation, LLMs
2023 - Present
~3 yrs 6 mos
Staff Software Engineer, Tech Lead Manager At Google Search Ads
Keywords: Ads Ranking, Machine Learning, Deep Learning, Ads Optimization, Ads Auction, Recommendation, Ads Experimentation, LLMs
2020 - Dec 2022
Senior Software Engineer, Tech Lead At Google Search Ads
Keywords: Ads Ranking, Machine Learning, Deep Learning, Ads Optimization, Ads Auction, Recommendation, Ads Experimentation, LLMs
2017 - Dec 2019
Software Engineer At Google Search Ads
Keywords: Ads Ranking, Machine Learning, Deep Learning, Ads Optimization, Ads Auction, Recommendation, Ads Experimentation, LLMs
2016 - 2017
~1 yr
Data Science Intern
Team: Core Product & QualityMentor: Jason Zhang (Data Scientist)Manager: Don van der DriftProject: Question Quality Classification and Grammar Auto-Correction● Keywords: Machine Learning, Natural Language Processing, Feature Engineering, Production● Complexity and Technology: 5K lines of Python code.● Details: Built a machine learning classifier for a large amount of questions based on a variety of features. Also, applied data mining techniques to improve question quality by auto-correcting grammatical issues.● Accomplishments: 1) Implemented the entire data pipeline for the project, including extracting data,modeling questions, and evaluating models. 2) Designed fine-grained natural language processingfeatures for model improvements. 3) Integrated the code into production.
May 2015 - Jul 2015
Software Engineering Intern
Team: Media Science TeamMentor: Brandon Roy (Data Scientist)Manager: Michael FleischmanProject: Modeling Twitter Influence on TV Tune in● Keywords: Machine Learning, Big Data, MapReduce, Time Series Data, Causal Reasoning.● Complexity and Technology: 1K lines of Scalding (Hadoop, 100TG data), 4K lines of Python code.● Details: Collected and cleaned a large amount of data (Tweets, TV Ratings, etc) from multiple data sources. Built a model to infer the relationship between Twitter, TV and other media such as News.● Accomplishments: Designed models and experiments to attest the relationship, with presentations made to several teams at Twitter.
May 2014 - Aug 2014
Research Intern
Team: Advanced Online Technology Group, Internet Services Research Center (ISRC)Manager: Johnson Apacible (Research Manager, Principal Architect)Project: Triggering for Educational Videos in Bing Search Engine● Keywords: Information Retrieval, Search Engine, Query Understanding, Production.● Complexity and Technology: 4K lines of C# code for experiments, 3K lines of C# code for production.● Details: Modeled the context of Khan Academy educational videos based on domain background. The ranking algorithm was designed by using video metadata and classified user query intent.● Accomplishments: 1) Dramatically improved precision by more than 30% compared with the previousmethod; 2) Wrote production code to incorporate the algorithm into Bing search engine.
May 2012 - Aug 2012
Research/Engineering Intern
Team: Web Intelligence (WIT) team of the Web Search and Mining (WSM) groupMentor: Yunbo Cao (Lead Researcher)Manager: Chin-Yew LinProjects:Automatic Wrapper for Web Data ExtractionScale Blocking for Record LinkageSempute LinkSee more details here (http://www.cs.uic.edu/~zchen/projects.html)
Oct 2010 - May 2011
2 education records
Brett Zhiyuan Chen education
Ph.D. In Computer Science, Text Mining, Machine Learning, Data Mining, And Natural Language Processing
University Of Illinois Chicago
Bachelor Of Science, Software Engineering
Dalian University Of Technology
FAQ
Frequently asked questions about Brett Zhiyuan Chen
Quick answers generated from the profile data available on this page.
What company does Brett Zhiyuan Chen work for?
Brett Zhiyuan Chen works for Perplexity.
What is Brett Zhiyuan Chen's role at Perplexity?
Brett Zhiyuan Chen is listed as Member of Technical Staff, Tech Lead at AI Team at Perplexity.
What is Brett Zhiyuan Chen's email address?
AeroLeads has found 2 work email signals at @google.com for Brett Zhiyuan Chen at Perplexity.
What is Brett Zhiyuan Chen's phone number?
AeroLeads has found 2 phone signal(s) with area code 312 for Brett Zhiyuan Chen at Perplexity.
Where is Brett Zhiyuan Chen based?
Brett Zhiyuan Chen is based in San Francisco Bay Area, United States while working with Perplexity.
What companies has Brett Zhiyuan Chen worked for?
Brett Zhiyuan Chen has worked for Perplexity, Google, Quora, Twitter, and Microsoft Research Redmond.
How can I contact Brett Zhiyuan Chen?
You can use AeroLeads to view verified contact signals for Brett Zhiyuan Chen at Perplexity, including work email, phone, and LinkedIn data when available.
What schools did Brett Zhiyuan Chen attend?
Brett Zhiyuan Chen holds Ph.D. In Computer Science, Text Mining, Machine Learning, Data Mining, And Natural Language Processing from University Of Illinois Chicago.
What skills is Brett Zhiyuan Chen known for?
Brett Zhiyuan Chen is listed with skills including Machine Learning, Natural Language Processing, Data Mining, Text Mining, Algorithms, Computer Science, Information Retrieval, and Java.
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