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# Senior Machine Learning Engineer - Search Recommendation, E-commerce Search Growth (Seattle)

- **Company:** Amazon.com, Inc.
- **Location:** Seattle, WA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Data Structures, Machine Learning, Recommender Systems, Information Technology, Software Coding
- **Published:** May 16, 2026
- **Apply:** https://www.careerjet.com/jobad/us557c5a9b2912a9f4cfd0a11c3aa2f7de

## About the Role

5+ years of work experience in machine learning.

 - Good product sense with a focus on user experience and E-commerce business.
 - Domain knowledge or working experience in any of these areas: modern Recommendation, Search, Advertisement, E-commerce.
 - Bachelor or advanced degree in computer science or a related technical discipline.
Preferred Qualifications

 - Excellent coding skills. Solid knowledge of data structure and algorithms.
 - Excellent in analysis, modeling and problem-solving, and can see the essence of problems from complex data.

## Description

Elevate search recommendation services and models for TikTok E-commerce, driving heightened e-commerce search traffic on both TikTok and TikTok Mall, while enhancing user search and purchasing cognition.

 - Optimize the recommender system, focusing on hyperscale machine learning models. This involves diverse tasks spanning recall/first-stage ranking to final-stage ranking within the end-to-end workflow.
 - Push the boundaries of short text and general recommendation technology, with a specific emphasis on the interaction between recommendation and NLP technology.
 - Provide guidance and mentorship to fellow teammates.


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