CareerPlanSign in

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

Seattle, United States of America💼 Full-time🗓 2026-09-28

Core

Develop and optimize hyperscale machine learning models for TikTok's e-commerce search recommendation engine, serving billions of daily requests and improving user search and purchasing cognition.

Role type

Senior IC machine learning engineer (search recommendation)

Builds

Real-time large-scale search recommendation systems for TikTok E-commerce

Domain

E-commerce, Search, NLP, Multi-modal AI

Deliverable

production ML models

Required skills

Machine learning, NLP, Recommendation systems, Data structures and algorithms, Hyperscale model optimization, End-to-end ranking workflow

Preferred skills

Advanced coding, Complex data analysis, Problem-solving

Technologies

NLP, Computer Vision (CV), Multi-modal models

Responsibilities

Elevate search recommendation services and models to drive e-commerce traffic; Optimize recommender system from recall to final-stage ranking; Push boundaries in short text and general recommendation technology.

Seniority

Mid-level, hands-on IC

Sourced via tiktok · Listed on CareerPlan, which tracks 844,000+ jobs from 20+ sources.