Algorithm Engineer, TikTok E-Commerce (Conversational AI) TikTok IncAlgorithm Engineer, TikTok E-Commerce (Conversational AI)Seattle, WADevelop Multilingual Customer Support: Build AI models capable of handling customer service interactions across multiple languages and cultural contexts, ensuring accurate translation and appropriate responses for a diverse global audience. LLM Post-Training & Data-Efficient Learning: Apply state-of-the-art LLM post-training techniques, such as instruction tuning, reinforcement learning from human feedback (RLHF), and continual learning, to optimize AI customer service responses with minimal labeled data.
Senior Machine Learning Engineer - E-commerce Risk Control TikTok IncSenior Machine Learning Engineer - E-commerce Risk ControlSeattle, WAThe E-Commerce Risk Control (ECRC) team s mission is: To protect TikTok e-commerce users, including and beyond buyer, seller, creator; To make Tiktok e-commerce the safest and most trusted place worldwide to transact online by securing the integrity of the e-commerce ecosystem and providing a safe shopping experience on the platform; Through building software systems, risk models and operational processes, as well as collaborating with many cross-functional teams and stakeholders. We achieve our mission by a) developing state-of-art Machine Learning (ML) solutions to prevent customers, SPs, and Tiktok from being impacted by bad actors' actions and practices to gain unfair business advantages; b) empowering Tiktok teams, both internal to GNE and external, to reduce risk attempts by utilizing our mechanisms.
Backend Software Engineer - Global E-commerce, Supply Chain and Logistics TikTok IncBackend Software Engineer - Global E-commerce, Supply Chain and LogisticsSeattle, WAGlobal E-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive reliable platform services in different scenarios such as live e-commerce, short video content e-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach. Our Supply Chain & Logistics team is a key pillar of the Global E-commerce business, responsible for the selection of goods, procurement, warehousing, inventory management and other business modules.
Senior Backend Software Engineer, Global E-commerce Governance Business TikTok IncSenior Backend Software Engineer, Global E-commerce Governance BusinessSeattle, WAOur work spans two connected areas: product governance (detecting counterfeit, prohibited, and low-quality listings; enforcing product information quality; meeting regulatory requirements across global markets) and IP protection (proactive infringement detection, rights-holder tooling, and notice-and-takedown workflows aligned with legal frameworks such as the DMCA and EU DSA). Global E-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive reliable platform services in different scenarios such as live e-commerce, short video content E-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach.
Senior iOS Software Engineer, Global E-commerce Frontend Infrastructure TikTok IncSenior iOS Software Engineer, Global E-commerce Frontend InfrastructureSeattle, WAResponsibilities: Be responsible for developing and maintaining the e-commerce module within the TikTok app, focusing on features such as product browsing, search functionality, and order placement to enhance the shopping experience. Collaborate with cross-functional teams including product managers, designers, and other developers to deliver new features aimed at enhancing user experience on the TikTok Shop.
Senior Android Software Engineer, Global E-commerce Frontend Infrastructure TikTok IncSenior Android Software Engineer, Global E-commerce Frontend InfrastructureSeattle, WAResponsibilities: Be responsible for developing and maintaining the e-commerce module within the TikTok app, focusing on features such as product browsing, search functionality, and order placement to enhance the shopping experience. Collaborate with cross-functional teams including product managers, designers, and other developers to deliver new features aimed at enhancing user experience on the TikTok Shop.
Tech Lead, Global E-commerce Governance Business TikTok IncTech Lead, Global E-commerce Governance BusinessSeattle, WAOur work spans two connected areas: product governance (detecting counterfeit, prohibited, and low-quality listings; enforcing product information quality; meeting regulatory requirements across global markets) and IP protection (proactive infringement detection, rights-holder tooling, and notice-and-takedown workflows aligned with legal frameworks such as the DMCA and EU DSA). Global E-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive reliable platform services in different scenarios such as live e-commerce, short video content E-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach.
Machine Learning Engineer - E-commerce Recommendation TikTok IncMachine Learning Engineer - E-commerce RecommendationSeattle, WAExperience in applied machine learning, familiar with one or more of the algorithms such as Collaborative Filtering, Matrix Factorization, Factorization Machines, Word2vec, Logistic Regression, Gradient Boosting Trees, Deep Neural Networks, Wide and Deep etc. Publications at KDD, NeurlPS, WWW, SIGIR, WSDM, ICML, IJCAI, AAAI, RECSYS and related conferences/journals, or experience in data mining/machine learning competitions such as Kaggle/KDD-cup etc.
Senior Machine Learning Engineer - TikTok E-commerce Global Supply Chain and Logistics TikTok IncSenior Machine Learning Engineer - TikTok E-commerce Global Supply Chain and LogisticsSeattle, WAUse data mining tools to build logistics network knowledge graphs, based on which to construct a situational awareness & early warning system for logistics fulfillment, enabling operations to discover and deal with logistics network anomalies, and to improve the logistics fulfillment quality together with logistics service providers. Experience in applied machine learning, familiar with one or more algorithms such as Matrix Factorization, Factorization Machines, Word2vec, Logistic Regression, Gradient Boosting Trees, Deep Neural Networks etc.
Senior Machine Learning Engineer, Recommendation - TikTok eCommerce TikTok IncSenior Machine Learning Engineer, Recommendation - TikTok eCommerceSeattle, WAPreferred Qualifications: Familiar with one or more of the algorithms such as Collaborative Filtering, Matrix Factorization, Factorization Machines, Word2vec, Logistic Regression, Gradient Boosting Trees, Deep Neural Networks, Wide and Deep etc. Build long and short term user interest models, analyze and extract relevant information from large amounts of various data and design algorithms to explore users latent interests efficiently.
Senior Machine Learning Engineer - Search Recommendation, E-commerce Search Growth (Seattle) TikTok IncSenior Machine Learning Engineer - Search Recommendation, E-commerce Search Growth (Seattle)Seattle, WAThis involves diverse tasks spanning recall/first-stage ranking to final-stage ranking within the end-to-end workflow. Our objective is to deliver the ultimate e-commerce search experience to over 1 billion active TikTok users worldwide.
Machine Learning Engineer, E-commerce Feed Recommendation TikTok IncMachine Learning Engineer, E-commerce Feed RecommendationSeattle, WA1 year of experience in applied machine learning, familiar with one or more of the algorithms such as Collaborative Filtering, Matrix Factorization, Factorization Machines, Word2vec, Logistic Regression, Gradient Boosting Trees, Deep Neural Networks, Wide and Deep etc. Publications at KDD, NeurlPS, WWW, SIGIR, WSDM, ICML, IJCAI, AAAI, RECSYS and related conferences/journals, or experience in data mining/machine learning competitions such as Kaggle/KDD-cup etc.
Research Scientist - E-commerce Recommendation(LLM Applications) - Global Frontier Tech Recruitment Program - 2027 Start (PhD) TikTok IncResearch Scientist - E-commerce Recommendation(LLM Applications) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)Seattle, WAAcross multiple scenarios-including live-streaming e-commerce, video-based commerce, and marketplace (shelf-based) commerce-the team is committed to delivering a more personalized, proactive, and efficient shopping experience for users, while providing merchants with a stable and reliable platform. Heterogeneous Data Fusion & Alignment: Unified modeling of user behavior sequences, product sales time-series signals, and multimodal product content, achieving deep semantic alignment across high-dimensional temporal and visual/textual representations.
Research Scientist Intern- E-commerce Recommendation(LLM Applications) - Global Frontier Tech Recruitment Program - 2027 Start (PhD) TikTok IncResearch Scientist Intern- E-commerce Recommendation(LLM Applications) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)Seattle, WAAcross multiple scenarios-including live-streaming e-commerce, video-based commerce, and marketplace (shelf-based) commerce-the team is committed to delivering a more personalized, proactive, and efficient shopping experience for users, while providing merchants with a stable and reliable platform. Multimodal Large Models for E-commerce: Build multilingual, multimodal models achieving SOTA performance and powering intelligent e-commerce agents.
Data Scientist, Global E-commerce TikTok IncData Scientist, Global E-commerceSeattle, WAGlobal e-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive consistent and reliable platform services in different scenarios such as live e-commerce, short video content e-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach. Exercise a high level of empathy in order to help the business identify and prioritize data needs and define proper metrics to measure initiative success.
Machine Learning Engineer - E-commerce Risk Control TikTok IncMachine Learning Engineer - E-commerce Risk ControlSeattle, WAThe E-Commerce Risk Control (ECRC) team s mission is: To protect TikTok e-commerce users, including and beyond buyer, seller, creator; To make Tiktok e-commerce the safest and most trusted place worldwide to transact online by securing the integrity of the e-commerce ecosystem and providing a safe shopping experience on the platform; Through building software systems, risk models and operational processes, as well as collaborating with many cross-functional teams and stakeholders. We achieve our mission by a) developing state-of-art Machine Learning (ML) solutions to prevent customers, SPs, and Tiktok from being impacted by bad actors' actions and practices to gain unfair business advantages; b) empowering Tiktok teams, both internal to GNE and external, to reduce risk attempts by utilizing our mechanisms.
Backend Software Engineer Graduate (Global E-commerce) - 2027 Start TikTok IncBackend Software Engineer Graduate (Global E-commerce) - 2027 StartSeattle, WAThe global E-commerce business team hopes to provide users with a more tailored and efficient consumption experience, enabling merchants to receive reliable platform services in different scenarios such as live E-commerce, and short video content E-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach. Build backend capabilities that support AI-powered product experiences, intelligent automation, and data-driven decision-making where applicable.
Backend Software Engineer - Global E-Commerce, Supply Chain and Logistics TikTok IncBackend Software Engineer - Global E-Commerce, Supply Chain and LogisticsSeattle, WAGlobal e-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive reliable platform services in different scenarios such as live e-commerce, short video content e-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach. Our Supply Chain & Logistics team is a key pillar of the global e-commerce business, responsible for the selection of goods, procurement, warehousing, inventory management and other business modules.
Machine Learning Engineer, Pricing - TikTok E-commerce Global Supply Chain and Logistics TikTok IncMachine Learning Engineer, Pricing - TikTok E-commerce Global Supply Chain and LogisticsSeattle, WADeeply understand the e-commerce business scenario, and refine the direction of logistics operation mode optimization, logistics cost reduction, and service quality improvement through data mining; Participate in product design, work closely with product, operations, and management teams to promote the productization and implementation of algorithm models to continuously empower business. Familiar with common machine/deep learning, causal inference, and operational optimization algorithms, including classification, regression, clustering methods, as well as mathematical programming and heuristic algorithms; Familiar with at least one framework of TensorFlow / PyTorch / MXNet and its training and deployment details, as well as the training acceleration methods such as mixed precision training and distributed training; Preferred Qualifications.
Senior Machine Learning E-commerce Feed Recommendation TikTok IncSenior Machine Learning E-commerce Feed RecommendationSeattle, WA3 years of experience in applied machine learning, familiar with one or more of the algorithms such as Collaborative Filtering, Matrix Factorization, Factorization Machines, Word2vec, Logistic Regression, Gradient Boosting Trees, Deep Neural Networks, Wide and Deep etc. Publications at KDD, NeurlPS, WWW, SIGIR, WSDM, ICML, IJCAI, AAAI, RECSYS and related conferences/journals, or experience in data mining/machine learning competitions such as Kaggle/KDD-cup etc.