Responsibilities
- Build graph-powered risk networks to identify related products, high-risk seller and creator groups, and similar product patterns.
- Develop multimodal LLM systems using text, images, and behavioral data to detect false advertising and low-quality products.
- Create time-series forecasting models for delivery delays, cancellations, inventory shortages, and demand surges.
- Develop multi-task models using MMoE and dynamic loss functions to improve product, service, and logistics health.
- Optimize warehouse product-quality qualification strategies and reduce missing recalls and warehouse costs.
- Apply causal inference to analyze relationships between CCR, user behavior, and personalized recommendations.
- Optimize LLM reasoning with DPO and GRPO and improve explainability through tabular data modeling.
- Construct heterogeneous graphs representing product, seller, creator, video, and user relationships.
Requirements
- Master’s degree required, as stated by the technical qualifications context.
- Proficiency in Python or C++ and machine learning frameworks including PyTorch or TensorFlow.
- Deep experience with graph neural networks, time-series analysis, or LLMs.
- At least 3 years of experience in anti-fraud, prediction or forecasting, e-commerce governance, or related fields.
- Track record of delivering AI solutions with measurable business impact.
- Passion for solving ambiguous problems and translating ideas into scalable solutions.
- Strong communication skills for cross-functional collaboration and stakeholder influence.
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About ByteDance
ByteDance is a global incubator of platforms at the cutting edge of commerce, content, entertainment and enterprise services - over 2.5bn people interact with ByteDance products including TikTok. Creation is the core of ByteDance's purpose. Our products are built to help imaginations thrive. This is doubly true of the teams that make our innovations possible. Together, we inspire creativity and enrich life - a mission we aim towards achieving every day. At ByteDance, we create together and grow together. That's how we drive impact - for ourselves, our company, and the users we serve. We are committed to building a safe, healthy and positive online environment for all our users. We have over 110,000 employees based in more than 30 countries globally. Join us.