Machine Learning Engineer - Search Recommendation, E-commerce Search Growth

Seattle, Washington, US Until 8/22/2026 3+ years exp H-1B sponsor history First posted March 29, 2026 Last posted May 15, 2026
Job description

Description

About the team
On the TikTok Search Team, you will have the opportunity to develop and apply cutting edge machine learning technologies in real-time large-scale systems, which serve billions of search requests every day. Via advanced NLP and multi-modal models, our projects impact and improve the search experience for hundreds of millions of users globally. We embrace a culture of self-direction, intellectual curiosity, openness, and problem-solving.

About the Team:
The Search Growth E-commerce team is at the forefront of developing the search recommendation algorithm for TikTok's rapidly expanding global e-commerce enterprise. Utilizing cutting-edge machine learning technology, advanced NLP, CV, recommendation, and multi-modal technology, we're shaping a pioneering engine within the industry. Our objective is to deliver the ultimate e-commerce search experience to over 1 billion active TikTok users worldwide. Our mission: to create a world where "there are no hard-to-sell, overpriced products."

Responsibilities - What You'll Do:
- 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.

Requirements

Minimum Qualifications
- 3+ years of work experience in machine learning. Good product sense with a focus on user experience and E-commerce business.
- 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.

About this role

Summary

Develop and optimize search recommendation models for TikTok's e-commerce platform.

Job title

Machine Learning Engineer - Search Recommendation, E-commerce Search Growth

Experience level

3+ years

Minimum experience

3+ years exp

Industry

software

Location requirements

Seattle, remote work not specified

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

machine learningdata structurealgorithmsmodelingproblem-solving

Preferred skills

coding skillsanalysisuser experienceE-commerce

Specializations

machine learningNLPrecommendationCVmulti-modal
Locations

Structured locations inferred from the posting.

Seattle, WA, USA

On-site City