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TikTok

Short-form video platform with ads

Senior Machine Learning Engineer - Multiple Teams

Computer Vision +1Confirmed live in the last 24 hours
Full-timeSeattle, WA, USAIn-person

About the Job

Requirements

  • A bachelor's degree or above in computer science or a related field.
  • Solid coding skills, ability to develop in a Linux environment, and proficiency in Python, Go, or C++.
  • A solid foundation in data structures and algorithms, proficiency in machine learning and deep learning theory, and substantial practical experience.
  • Familiarity with one or two areas among natural language processing, computer vision, multimodal technology, graph algorithms, search algorithms, text or data mining, and large language models.

Responsibilities

  • Identify algorithms for risk, violation, and low-quality issues in e-commerce scenarios, including products, shopping-cart short videos, and live streams featuring products.
  • Develop algorithms to detect fraudulent behavior and identify risky, violating, or low-quality merchants and creators.
  • Optimize algorithms for large-scale brand libraries, products, and content deduplication and clustering.
  • Construct data and perform instruction fine-tuning, chain-of-thought work, and alignment for large models in the e-commerce domain, optimizing their performance in that domain.
  • Research reinforcement-learning and operations-research algorithms for intelligent dispatching and audit scheduling to improve audit quality and efficiency.
  • Research and develop multi-agent tools, models, engines, and platforms to improve automatic planning, generalized decision-making, and multimodal interaction in e-commerce scenarios; deliver agent-based solutions for problems beyond existing methods and models, identify capability gaps, and feed real-world application insights back into foundational model iteration.
  • Optimize agent-system performance and stability, including resource utilization, environment-interaction latency, and cost efficiency; generalize capabilities from business requirements, define the platform roadmap, and build reliable agent infrastructure.
  • Optimize foundational algorithms including natural language processing, computer vision, multimodal algorithms, search, graph algorithms, large language models, and agents for governance business needs, and apply relevant technologies to e-commerce scenarios.
  • Improve computer-vision model optimization and iteration for e-commerce, including fine-grained product-image classification, object and subject recognition, feature extraction, logo detection, and brand recognition.
  • Optimize video classification, multimodal content mining, and understanding of e-commerce short videos and live broadcasts to improve the short-video shopping experience.
  • Optimize risk-identification models for e-commerce text content, including product copy, text in images, and voice descriptions.
  • Optimize risk-mining algorithms for product-, short-video-, and live-broadcast-related comments, reports, and other public-opinion content to improve platform governance.
  • Research and implement large-scale multimodal algorithms involving vision, speech, and natural language in e-commerce scenarios.
  • Extract data from e-commerce live-stream content, products, merchants, and influencers; model large-scale networks for content understanding, multimodal representation, and community mining.
  • Participate in building a large-scale graph-storage and graph-learning platform that supports graph learning across billions of nodes and edges.

Desired Qualifications

  • Experience in platform governance, auditing, risk control, content security, or overseas internet or e-commerce business.

About the Company

TikTok

Short-form video platform with ads

TikTok is a short-form mobile video platform that lets people create, discover, and share quick videos. Users upload vertical clips, edit them with built-in tools, and browse a personalized feed powered by an algorithm that highlights relevant content. Advertisers can use in-feed ads, branded hashtags, and the Business Center to plan and measure campaigns, making it easy for brands to reach a global audience. Its goal is to inspire creativity and bring joy by helping people express themselves and by connecting brands with a wide audience.

Company size
10,001+
Company stage
Grant
Total funding
$740K
Headquarters
Santa Monica, CA
Founded
2016

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