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Qingjun Cui Email Address


Job Title

Applied Science Manager, Search Ranking


A9.com, an Amazon company, solves some of the biggest challenges in search and advertising. We focus on helping people find the things they want. Great search can seem to customers like it is reading their minds. We start the search experience by giving customers suggestions on how to formulate their queries as soon as they start typing. Once we determine which items are good matches to the customer s query, our ranking algorithms score them to present the most relevant results to the user. We index millions of documents worldwide, and deploy them on highly scalable massive fleets of servers. We reflect millions of price and inventory changes in real time, and we return relevant results in milliseconds.


Senior Applied Scientist - A9.com

Last University
Beihang University
Lives in Palo Alto, California, United States.

Other people working at A9:

Diana Sutter*******@a9.com
Maxwell NatrianGeneral Manager, Emerging Channels
Pavel KalininI Work On Huge Data Powering Amazon Advertising -- I'm Hiring Leaders
Matt BattlesVice President, Multichannel Advertising
Scott KaiserManager, ML Data Initiatives
Neil K.*****@a9.com
Tanmay G.*******@a9.com
Igor FridmanEngineering Manager
Peter HallinanCo-leader, Initiatives in Responsible AI
Raj GillRegional Facilities Manager
Ilya Lipkind********@a9.com
L. Notley*******@a9.com
Scott JacksonSearch Operations Engineer
Sachi MassengaleHead of Marketing, Amazon Publisher Services
Jason FreundSDM Android Visual Search and Augmented Reality
Anselm Baird Smith**********@a9.com
Baird A.*******@a9.com

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