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› Data & AI
Data & AI
76,129 open positions
Research Engineer/Scientist(all levels), Efficient Models
TikTok
San Jose, United States of America
Design and implement efficient models for large-scale generative AI, focusing on model distillation and compression to enable scalable training and deployment.
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Machine Learning Engineer - Global E-commerce Recommendation/Search
TikTok
Seattle, United States of America
Design and build large-scale recommendation and search algorithms for e-commerce discovery, risk control, and content safety on TikTok.
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Backend Engineer , AML Engine Orchestration
TikTok
Singapore
Design and build distributed orchestration and training systems for next-generation recommendation and ads ranking models.
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Machine Learning Engineer (LLM)- E-commerce Risk Control
TikTok
Seattle, United States of America
Develop and deploy machine learning models and LLM-based agentic workflows to detect and prevent fraud, abuse, and anomalies in global e-commerce transactions.
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Algorithm Engineer Graduate (TikTok Shop Global E-Commerce, Knowledge Graph) - 2026 Start (PhD)
TikTok
Singapore
Building and optimizing large-scale product knowledge graphs and unified product representations to improve online shopping experience and traffic efficiencies in global e-commerce markets.
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Big Data Engineer Project Intern (Global Monetization Product and Technology) - 2026 Start (BS/MS)
TikTok
Singapore
Develop and operate internal BI platforms and manage data pipelines to support advertising and analytics businesses.
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LLM Algorithm Research Scientist Code AI Intern (AI Innovation Center) - 2026 Start (PhD)
TikTok
Singapore
Research and develop large language model (LLM) capabilities specifically for code comprehension, reasoning, and generation to optimize TikTok's codebase and improve R&D efficiency.
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Data Engineer - TikTok, Video-on-Demand
TikTok
Singapore
Design and build resilient, efficient data pipelines for batch and real-time streaming workloads to support internal teams with core business metrics and quality insights.
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Machine Learning Engineer Graduate (TikTok Shop Global E-Commerce, Recommendation) - 2026 Start (PhD)
TikTok
Singapore
Building large-scale e-commerce recommendation algorithms and systems for TikTok Shop, including commodity, live-stream, and short video recommendations to improve user engagement.
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Algorithm Engineer Graduate (TikTok Shop Global E-Commerce, Supply Chain and Logistics) - 2026 Start (PhD)
TikTok
Singapore
Develop deep learning and operations research models to optimize global e-commerce supply chain efficiency, predict logistics events, forecast demand, and drive merchant/product growth.
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Software Engineer Intern (Recommendation Infrastructure) - 2026 Start (PhD)
TikTok
San Jose, United States of America
Build and maintain high-performance online services and data pipelines for TikTok's recommendation system (For You Feed, E-commerce, Social).
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Software Engineer - Content Understanding, TikTok Feeds
TikTok
San Jose, United States of America
Design and implement engineering architecture for TikTok's content understanding scenarios within the For You Feed recommendation system.
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Senior Machine Learning Engineer, Search - Local Services Team
TikTok
Seattle, United States of America
Design and implement large-scale machine learning algorithms for local services search and recommendation to enhance user discovery of hospitality, dining, and leisure experiences.
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Senior Research Scientist, TikTok - Trust and Safety
TikTok
San Jose, United States of America
Design, train, and deploy foundation models (LLM/VLM) for content safety, risk detection, and moderation automation on TikTok's global platform.
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Research Scientist Graduate (TikTok Recommendation-Agentic AI) - 2026 Start (PhD)
TikTok
San Jose, United States of America
Design reinforcement learning datasets, optimize RL algorithms, and research agentic recommendation systems and generative models for TikTok's recommendation engine.
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Machine Learning Engineer - Core Feed Recommendation - Singapore
TikTok
Singapore
Design, implement, and improve the core recommendation algorithm powering TikTok's 'for you' and 'following' feeds to connect users with relevant content in real-time.
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Machine Learning Engineer - LIVE Recommendation - Singapore
TikTok
Singapore
Build industry-leading recommendation systems for live streaming content, focusing on precision ranking, first stage ranking, and recall modules to optimize content consumption and production experience.
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Data Solutions Project Intern (Data Cycling Center) - 2026 Start (BS/MS)
TikTok
Singapore
Intern role supporting TikTok's Data Solutions Team in building data solutions for Monetization and Integrity, focusing on labeling business KPIs, project tracking, and analytics.
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Backend Software Engineer - Recommendation Content Understanding Architecture
TikTok
Singapore
Design and develop the multi-modal content understanding pipeline, including retrieval, sorting, and vector computing for massive video content.
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Backend Software Engineer, Recommendation Content Understanding Architecture
TikTok
Singapore
Design and develop the multi-modal content understanding pipeline for massive video content processing, retrieval, and sorting.
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Data Analyst Project Intern (Safety Model Operations) - 2026 Start (BS/MS)
TikTok
Singapore
Intern supporting safety model operations by analyzing data, validating labels, and building dashboards to improve content safety and moderation efficiency.
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Machine Learning Algorithm Research Engineer
TikTok
Singapore
Researching and building large-scale recommendation systems using LLMs, GNNs, and large models to solve cold-start, real-time, and diversity challenges for TikTok's global user base.
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Senior Algorithm Engineer - TikTok Location Based Services (Singapore)
TikTok
Singapore
Design and develop algorithms for TikTok's in-house POI data construction, Agent modules, and LLM applications to improve data quality and connect users with local services.
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Backend Software Engineer, Ads Data (Data Platform)
TikTok
Singapore
Building and maintaining large-scale streaming and batch data processing solutions for TikTok's Ads platform and internal business intelligence.
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Data Engineer (Security) - TikTok Shop
TikTok
Singapore
Building and maintaining global e-commerce security data infrastructure to support risk identification and system stability for TikTok Shop's live and short-video commerce.
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Senior Software Engineer, Recommendation Engine System
TikTok
San Jose, United States of America
Design, develop, and optimize large-scale recommendation engine systems to deliver personalized content in real time.
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Software Engineer, Ads Business Integrity - Customer Experience
TikTok
San Jose, United States of America
Design scalable infrastructure for ads quality control, intelligent content moderation, and trust-enhancing products to safeguard the ads ecosystem and improve advertiser experience.
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Staff Research Engineer, LLM - TikTok Ads Core ML, Ranking
TikTok
San Jose, United States of America
Design and optimize state-of-the-art ranking models and frameworks for a global advertising delivery system to maximize efficiency and revenue.
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Data Scientist (Quant Modeling) - TikTok
TikTok
San Jose, United States of America
Design and monitor core metrics, identify root causes of metric movements, and leverage causal structures of user behavior to guide product decisions and user growth.
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LLM/MLLM Algorithm Engineer-TikTok E-commerce
TikTok
Singapore
Develop domain-specific large language and multimodal models (LLM/MLLM) to optimize e-commerce governance, content moderation, and risk detection.
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Machine Learning Engineer, Search - Local Services Team
TikTok
San Jose, United States of America
Design and implement large-scale machine learning algorithms for local services search and recommendation to enhance user discovery of hospitality, dining, and leisure experiences.
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Machine Learning Engineer - Location Product -Singapore
TikTok
Singapore
Develop transaction recommendation algorithms for TikTok's international local services (hotels, travel, dining) to optimize user experience and revenue.
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Data Analyst - Global Business Solutions - Singapore
TikTok
Singapore
Data analyst supporting revenue growth and monetization by analyzing user interactions with ad products and delivering data support for business development plans.
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Machine Learning Engineer (User Growth & Intelligent Marketing) - Global e-Commerce
TikTok
Singapore
Optimizing TikTok e-commerce growth and marketing algorithms to drive user acquisition, engagement, and GMV growth.
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Applied Scientist- TikTok E-Commerce Recommendation
TikTok
Seattle, United States of America
Designing and building large-scale e-commerce recommendation algorithms and systems for TikTok Shop, including commodity, live stream, and short video recommendations.
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Tech Lead, Intelligent Editing (Multimodality)
TikTok
Seattle, United States of America
Lead R&D in computer vision and machine learning for multimodal understanding, vision-language tasks, and intelligent editing features.
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Big Data Engineer, TikTok ShortText Recommendation Architecture
TikTok
Singapore
Designing and implementing offline data architecture, scalable storage and computing systems, and distributed infrastructure for TikTok's short-text recommendation scenarios (search suggestions, video-related search, comment entities).
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Tech Lead, Machine Learning Engineer - Search E-commerce
TikTok
Singapore
Lead the search algorithm and ranking system for TikTok's global e-commerce business, serving over 1 billion monthly users.
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Machine Learning Engineer, Recommendation - E-Commerce
TikTok
San Jose, United States of America
Design and build large-scale e-commerce recommendation algorithms to connect customers with quality products on TikTok Shop via live-streaming and short videos.
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(General Hire)Tech Lead, Machine Learning Engineer, TikTok Recommendation
TikTok
San Jose, United States of America
Build and optimize industry-leading recommendation systems to improve user experience, content ecosystem, and platform security.
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(General Hire) Senior Machine Learning Engineer, TikTok Recommendation
TikTok
San Jose, United States of America
Develop and own full-stack machine learning systems and pipelines to improve user experience and grow the platform content ecosystem.
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Machine Learning Engineer, TikTok Content Recommendation (Ecosystem & Cold-Start)
TikTok
San Jose, United States of America
Design and optimize TikTok's content distribution and author growth mechanisms to ensure a healthy content ecosystem.
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Software Engineer - Search Ads, Ads Interface and Platform
TikTok
San Jose, United States of America
Design, develop, and improve TikTok Search Ads experience while managing a team of software engineers.
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Machine Learning Engineer, TikTok Lead Ads
TikTok
San Jose, United States of America
Develop novel machine learning solutions for ranking and build scalable foundations to maximize the efficiency of lead ads delivery on TikTok.
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Machine Learning Engineer, Search Recommendation
TikTok
San Jose, United States of America
Developing and optimizing search recommendation algorithms for TikTok's global e-commerce platform to serve over 1 billion users.
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Senior Machine Learning Engineer, Recommendation - TikTok eCommerce
TikTok
Seattle, United States of America
Building large-scale e-commerce recommendation algorithms and systems for TikTok Shop to improve user engagement and conversion.
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Software Engineer, Ads ML Infrastructure
TikTok
San Jose, United States of America
Building and operating scalable Ads ranking infrastructure systems to handle massive data for machine learning training, serving, and privacy enforcement.
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Machine Learning Engineer, App Ads and Gaming
TikTok
San Jose, United States of America
Develop novel machine learning solutions for ranking and build scalable foundations to maximize the efficiency of deep funnel app ads delivery on TikTok.
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Machine Learning Engineer - TikTok-Data-Search-Visual Search
TikTok
San Jose, United States of America
Develop and apply cutting-edge machine learning technologies in real-time large-scale systems to serve billions of search requests daily, improving the search experience for hundreds of millions of users globally via advanced NLP and multi-modal models.
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Research Scientist, TikTok E-Commerce Recommendation
TikTok
Seattle, United States of America
Conducting cutting-edge research and building large-scale e-commerce recommendation algorithms and systems for TikTok users.
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