New(General Hire) Research Scientist Graduate(TikTok Recommendation) - 2027 Start (PhD) TikTok Inc(General Hire) Research Scientist Graduate(TikTok Recommendation) - 2027 Start (PhD)San Jose, CAAuthors with publications in major AI venues such as SIGGRAPH, SIGGRAPH Asia, CVPR, ICCV, ECCV, ICML, NeurIPS, ICLR. Minimum Qualifications: Individuals who are completing or have recently completed a PhD degree in computer science or a related discipline.
Research Scientist - Post Training AfterQueryResearch Scientist - Post TrainingSan Francisco, CaliforniaWe're based in San Francisco and backed by leading investors including Altos Ventures, BoxGroup, and Y Combinator and angels from Google DeepMind, OpenAI, Anthropic, Meta Superintelligence Labs, and Microsoft AI. Strong Team: Our founding team has experience from Citadel Securities, Meta, Google, Silver Lake, and Morgan Stanley — work alongside world-class engineers and researchers.
NewResearch Scientist Intern (Data-TnS-Algo-Foundations & Intelligence Service) - 2027 Start (PhD) TikTok IncResearch Scientist Intern (Data-TnS-Algo-Foundations & Intelligence Service) - 2027 Start (PhD)San Jose, CAPost-Training & RL: Develop advanced reinforcement-learning strategies (e.g., RLHF/RLAIF/DPO variants), and investigate how to balance pretraining and post-training for better capability and safety alignment. Responsibilities: Pretraining & Continued Pretraining (CPT): Explore and develop approaches that improve general capability and safety for LLMs and VLMs via pretraining/CPT.
New(General Hire) Research Scientist Graduate(TikTok Recommendation) - 2026 Start (PhD) TikTok Inc(General Hire) Research Scientist Graduate(TikTok Recommendation) - 2026 Start (PhD)San Jose, CAExperience in one of more areas of computer vision, natural language processing and machine learning Solid knowledge and experience with at least one major deep learning framework (e.g. Minimum Qualifications: Individuals who are completing or have recently completed a PhD degree in Computer Science, Machine Learning, Artificial Intelligence, Statistics, or a related field.
NewResearch Scientist Intern (TikTok-Data-Content Intelligence) - 2027 Start (PhD) TikTok IncResearch Scientist Intern (TikTok-Data-Content Intelligence) - 2027 Start (PhD)San Jose, CAWork with cross functional teams to design product strategies and build solutions to grow TikTok in important markets Minimum Qualifications: Currently pursuing a PhD degree in the field of computer science or a related technical discipline. PhD internships at Our Company provide students with the opportunity to actively contribute to our products and research, as well as to the organization s future plans and emerging technologies.
NewResearch Scientist, TikTok E-Commerce Recommendation TikTok IncResearch Scientist, TikTok E-Commerce RecommendationSan Jose, CABuild 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. Apply machine learning algorithms to improve the different business scenarios, such as search ranking, natural language and video understanding, and trust and safety.
NewResearch Scientist - Generative AI Graduate (Intelligent Creation) - Global Frontier Tech Recruitment Program - 2027 Start (PhD) TikTok IncResearch Scientist - Generative AI Graduate (Intelligent Creation) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)San Jose, CAAbout the Team The Intelligent Creation - Global GenAI team focuses on applied research in Generative AI, and delivers intelligent solutions to Tiktok, enabling users to make and share creative content in a much easier way. Advance video generation models to capture long-horizon temporal consistency, realistic physical dynamics, object interactions, and causal relationships from large-scale multi-modal data.
New(General Hire) Research Scientist Intern (Monetization Technology) - 2026 Start (PhD) TikTok Inc(General Hire) Research Scientist Intern (Monetization Technology) - 2026 Start (PhD)San Jose, CAOur team develops a wide variety of advertisements for numerous uses including feeds, live streaming, branding, measurement, targeting, search, vertical solutions, creative solutions, and business integrity. Monetization Technology teams are building the next-generation monetization platforms to help millions of customers grow their businesses, utilizing our products like TikTok.
NewResearch Scientist, (Privacy-Preserving Large-Scale Model Training & Architecture Optimization) TikTok IncResearch Scientist, (Privacy-Preserving Large-Scale Model Training & Architecture Optimization)San Jose, CAPrivacy-preserving and compliant training pipelines You will work on end-to-end training architecture design, from model-parallel execution and GPU efficiency to robust, fault-tolerant, privacy-aware training infrastructure. Design and optimize large-scale training architectures for diffusion-based and unified generative models (e.g., DiT, Rectified Flow, hybrid AR + diffusion systems).
NewResearch Scientist, Generative AI - San Jose TikTok IncResearch Scientist, Generative AI - San JoseSan Jose, CAResponsibilities: Conduct cutting-edge research and development in computer vision, generative AI and other related fields; Transfer advanced technologies to TikTok products; Explore new products with artificial intelligence technology at its core. Minimum Qualifications 3+ years of research and practical experience in one or more areas of computer vision, including but not limited to (preferring candidates with publications in the venues such as CVPR, ICCV, SIGGRAPH, NeurIPS):
NewTech Lead, Research Scientist, Generative AI TikTok IncTech Lead, Research Scientist, Generative AISan Jose, CAIt covers a variety of technical fields, including deep learning, computer vision, graphics, speech, shooting and editing, special effects, client and server engineering, and provides cutting-edge content understanding, content creation, interactive experience, and consumption capabilities and industry solutions to other business lines within the company and external partners in various forms. About the team The Intelligent Creation Team is the AI, special effects, and audio-video creation technology team, responsible for the core technology and business development.
NewResearch Scientist Graduate(Global E-commerce Content Recommendation) - 2026 Start (PhD) TikTok IncResearch Scientist Graduate(Global E-commerce Content Recommendation) - 2026 Start (PhD)San Jose, CADrive scientific rigor while balancing real-world constraints Minimum Qualifications: Individuals who are completing or have recently completed a PhD degree in Computer Science, Machine Learning, Artificial Intelligence, Statistics, or a related technical field. In today's content-driven commerce landscape, traditional collaborative filtering and supervised learning methods are no longer sufficient.
NewResearch Scientist Intern - TikTok Recommendation(NextGen LLM) - Global Frontier Tech Recruitment Program - 2027 Start (PhD) TikTok IncResearch Scientist Intern - TikTok Recommendation(NextGen LLM) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)San Jose, CAUnified Multimodal Semantic Space: Explore alignment across video, image-text content, and user intent, constructing a fully multimodal semantic space that goes beyond text. Key challenges include: Extreme-scale reasoning: Performance gains and bottlenecks associated with ultra-large model parameters and ultra-long sequence modeling.
NewResearch Scientist Intern (Compute Platform - Database Acceleration) - 2026 Start (PhD) TikTok IncResearch Scientist Intern (Compute Platform - Database Acceleration) - 2026 Start (PhD)San Jose, CAOur team focuses on internal tools relating to OLAP DBMS, logging and data ingestion infrastructure, A/B testing for all product and feature launches, workflow management, distributed cache, data visualization tools, and big data engineering, which supports TikTok s business products. Preferred Qualifications: Research or deep working experience in OLAP databases and data management systems is preferred, including but not limited to database kernel, query processing, query optimization, storage system, hardware acceleration, cloud native infrastructure, etc.
NewResearch Scientist Intern (Ads Integrity) - 2026 Start (PhD) TikTok IncResearch Scientist Intern (Ads Integrity) - 2026 Start (PhD)San Jose, CAResponsibilities: Lead research and development of advanced generative AI technologies, including LLMs, multimodal models (text/image/video), and deepfake detection/synthesis, focusing on optimizing performance across pre-training, SFT, RLHF, and AI safety. Design and deploy cutting-edge AIGC solutions for content understanding and monetization in diverse applications such as ads, e-commerce, short video, and live streaming, contributing to the creation of next-generation AI-driven ecosystems.
Research Scientist, AI Physical SuperintelligenceResearch Scientist, AISan Francisco, CaliforniaFocus on core AI research questions including how agents learn physics reasoning, action space design for scientific discovery, reward structure development, and training systems that scale. Physical Superintelligence is a startup with roots at Harvard, MIT, Johns Hopkins, Oxford, the Institute for Advanced Study, and the Perimeter Institute is building AI systems to discover new physics at scale.
NewWorld Model Research Scientist (Intelligent Creation) - Global Frontier Tech Recruitment Program - 2027 Start (PhD) TikTok IncWorld Model Research Scientist (Intelligent Creation) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)San Jose, CAHands-on experience in at least one of the following areas: Image/video generation and editing; VLM/LLM fine-tuning; Efficient model design and optimization; Reinforcement learning methods (e.g., RLHF, DPO, GRPO). Design and build models for creative applications on the TikTok platform, driving end-to-end impact from research to production through cross-functional collaboration.
NewResearch Scientist Graduate (TikTok Recommendation-Agentic AI) - 2026 Start (PhD) TikTok IncResearch Scientist Graduate (TikTok Recommendation-Agentic AI) - 2026 Start (PhD)San Jose, CAWe re integrating cutting-edge techniques such as multimodal large language models (MLLMs), reinforcement learning, and agentic alignment to drive next-generation user experiences at scale. Strong knowledge and hands-on experience in at least one of the following areas: reinforcement learning, agent development, or LLM post-training.
NewResearch Scientist Graduate (TikTok Trust and Safety) - 2027 Start (PhD) TikTok IncResearch Scientist Graduate (TikTok Trust and Safety) - 2027 Start (PhD)San Jose, CAThe algorithm team is responsible for developing state-of-the-art computer vision, NLP and multimodality models and algorithms to protect our platform and users from the content and behaviors that violate community guidelines and related regulations. In our team, you will have the opportunity to participate in the development of the cutting-edge content understanding model to help improve the recognition ability of violated content in TikTok, and will also be responsible for optimizing our distributed model training framework continuously.
NewResearch Scientist Intern (Monetization GenAI) - 2026 Start (PhD) TikTok IncResearch Scientist Intern (Monetization GenAI) - 2026 Start (PhD)San Jose, CAWork on research in advancing technology in large language model or multimodality generative model architectures; Research, implement and evaluate novel machine learning algorithms on generative models; Collaborate with applied machine learning teams and infrastructure teams to ship new generative models into ad production. Our team focuses on developing cutting-edge Generative AI techs across all modalities, including text, image, videos, landing pages, etc., and creates industry-leading technical solutions to improve creative efficiency for advertisers, agencies and creators.