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Responsibilities

About the Team
The E-commerce Recommendation Foundation team is dedicated to building the next-generation recommendation intelligence. We aim to develop a unified Foundation Model that supports multi-business and multi-scenario recommendation systems, covering the full pipeline from retrieval and ranking to re-ranking, and driving a comprehensive upgrade in intelligence and generative capability.

We believe the future of recommendation systems goes beyond predicting click-through rates - it lies in understanding the relationship between people and content, and in generating new connections. The team is exploring an event-sequence-driven generative recommendation paradigm, deeply integrating large language models (LLMs), multimodal understanding, reinforcement learning, and system optimization to advance recommendation systems toward general-purpose intelligent agents.

We value original exploration and encourage both research thinking and engineering excellence. Every team member is empowered to propose hypotheses and validate ideas in an open environment - your code and papers may help define the next paradigm of recommendation systems. We seek individuals with a general intelligence mindset to join us in redefining the future of recommendation.

We are looking for talented individuals to join our team. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth.

Successful candidates must be able to commit to an onboarding date by the end of the year. Please state your availability and graduation date clearly in your resume.

Responsibilities
- Build and optimize cross-scenario shared Foundation Models to enable unified modeling and efficient inference.
- Advance the event-sequence-driven generative recommendation paradigm, integrating multimodal understanding and generative capabilities.
- Apply LLM technologies across retrieval, ranking, and re-ranking stages; participate in model training, inference optimization, and system co-design.
- Explore the integration of LLMs / VLMs with recommendation systems to develop adaptive and evolving intelligent recommenders.
- Research end-to-end generative recommendation and system optimization methods that balance efficiency and user experience.

Qualifications

Minimum Qualifications
- Individuals who are completing or have recently completed a PhD degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
- Solid theoretical foundation in machine learning, deep learning, or information retrieval.
- Proficiency in Python and familiarity with mainstream deep learning frameworks (e.g., PyTorch).
- Strong passion for intelligent recommendation systems and a self-driven research mindset.

Preferred Qualifications
- Experience in large-scale recommendation system development or large-model training, with notable technical achievements in a sub-area.
- Research experience or publications in LLMs, multimodal learning, reinforcement learning, or generative recommendation.
- Familiarity with pre-training and post-training processes for large language models (LLMs) or Foundation Models.

Responsibilities

Qualifications

Qualifications

Minimum Qualifications
- Individuals who are completing or have recently completed a PhD degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
- Solid theoretical foundation in machine learning, deep learning, or information retrieval.
- Proficiency in Python and familiarity with mainstream deep learning frameworks (e.g., PyTorch).
- Strong passion for intelligent recommendation systems and a self-driven research mindset.

Preferred Qualifications
- Experience in large-scale recommendation system development or large-model training, with notable technical achievements in a sub-area.
- Research experience or publications in LLMs, multimodal learning, reinforcement learning, or generative recommendation.
- Familiarity with pre-training and post-training processes for large language models (LLMs) or Foundation Models.

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TikTok is the leading destination for short-form mobile video and our mission is to inspire creativity and bring joy.

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Industry: Technology: Consumer Internet

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