Responsibilities
- Develop and optimize large-scale search algorithms for query understanding, retrieval, ranking, reranking, and relevance modeling.
- Apply machine learning, deep learning, and foundation models to improve search relevance, personalization, and user satisfaction.
- Explore LLM-powered search capabilities including generative search, retrieval-augmented generation, search agents, long-context understanding, and multi-turn search.
- Build multimodal search using text, image, video, audio, user behavior, and other content signals.
- Collaborate with product, engineering, and research teams to define technical solutions and drive algorithm improvements from research to production.
- Conduct data analysis, model evaluation, and online and offline experiments.
Requirements
- Currently completing or recently completed a PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
- Solid programming skills in Python, C++, or a related language.
- Understanding of machine learning and deep learning fundamentals.
- Hands-on experience in search/retrieval, ranking, recommender systems, NLP, multimodal learning, LLMs, or applied machine learning.
- Ability to conduct structured research or technical problem-solving and translate ideas into working solutions.
- Research, project, or internship experience in search, ranking, NLP, multimodal learning, LLMs, or AI systems is preferred.
- Publications, open-source contributions, research projects, or other relevant technical work are preferred.
- Strong analytical, problem-solving, communication, and collaboration skills are preferred.
Benefits
- Candidates must be able to commit to an onboarding date by the end of the year and should state availability and graduation date clearly in their resume.
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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.