LLM Machine Learning Engineer, TikTok Search

关于这个机会

About the team Our Search Team is responsible for building and owning TikTok's search engine which provides our users the best search experience. On the TikTok Search Team, you’ll have the opportunity to build a full-stack search engine system and combine information retrieval technology with modern machine learning methods from related fields such as NLP, Computer Vision, Multimodal, and Recommender Systems. We embrace a culture of self-direction, intellectual curiosity, openness, and problem-solving. Job Responsibilities Be responsible for the iterative optimization of TikTok vertical or independent short drama app search quality and relevance algorithm directions. Based on multi-modal technology for content understanding, grasp the core characteristics of the photo-text or short drama genre, focus on optimizing relevance models, solve core pain points such as semantic alignment and cross-modal matching, break through technical bottlenecks, expand the contribution of vertical search to the search business, and create a high-quality vertical search experience that meets user needs. Core Responsibilities: 1. Multi-modal understanding: focus on solving core pain points such as semantic alignment and cross-modal matching deviation, and integrate the visual features, text semantics and other data. 2. Be responsible for the optimization of relevance and quality, and promote the experience improvement in vertical search distribution by combining LLM/VML technologies. 3. Engineering implementation and algorithm performance optimization: be responsible for the engineering implementation of vertical search algorithm models, complete the full-process optimization of model training, inference and deployment, and ensure the online stability of algorithms. 4. Track cutting-edge technology trends, carry out technical pre-research and innovative practices combined with search business scenarios, explore in-depth applications in semantic understanding and relevance matching, form technical precipitation, and improve the technical competitiveness of the team.

任职要求

Minimum Qualifications 1. Bachelor's degree or above in a computer-related major, with excellent coding ability and proficient in programming languages such as C++/Python, and familiar with common data structures and programming algorithms. 2. Solid foundation in machine learning and coding ability, strong algorithm design and modeling capabilities, and familiar with at least one of machine learning, data mining, NLP, image processing, multi-modality, and large models. 3. Excellent ability to analyze and solve problems, passionate about solving challenging problems, with good initiative and curiosity, and good communication and collaboration skills. Preferred Qualification 1. Understanding of the characteristics of search business, in-depth understanding of image quality evaluation, content relevance judgment, and multi-modal content understanding; priority is given to candidates with experience in content search and recommendations.

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