LLM/Multimodal AI Engineer Intern (TikTok Search) - 2027 Start (PhD)

TikTok
Singapore
InternshipFunction: Data Science & Machine LearningEducation: phdSkills: ["Problem-solving","Analytical thinking","Structured exploration","Communication","Collaboration"]

Build and optimize large-scale search algorithms for a full-stack search engine, combining information retrieval with modern machine learning. Work on query understanding, retrieval, ranking, reranking, relevance modeling, and multimodal search using text, images, video, audio, and user behavior. Explore LLM-powered search techniques like generative search, RAG, search agents, long-context understanding, and multi-turn scenarios, while supporting evaluation and offline/online experiments under mentor guidance.

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FursaFursa
TikTok
TikTok
1 day ago

LLM/Multimodal AI Engineer Intern (TikTok Search) - 2027 Start (PhD)

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 12 hours agoStatus: Live

Job Summary

Build and optimize large-scale search algorithms for a full-stack search engine, combining information retrieval with modern machine learning. Work on query understanding, retrieval, ranking, reranking, relevance modeling, and multimodal search using text, images, video, audio, and user behavior. Explore LLM-powered search techniques like generative search, RAG, search agents, long-context understanding, and multi-turn scenarios, while supporting evaluation and offline/online experiments under mentor guidance.
Location: Singapore
Employment Type: Internship
Job Function: Data Science & Machine Learning
Seniority: Intern level

Key Responsibilities

  • •Develop and optimize algorithms for large-scale search systems, including query understanding, retrieval, ranking, reranking, and relevance modeling under mentor guidance.
  • •Apply machine learning, deep learning, and foundation-model technologies to improve search relevance, personalization, and user satisfaction.
  • •Research and/or engineer LLM-powered search approaches such as generative search, retrieval-augmented generation, search agents, long-context understanding, and multi-turn search.
  • •Build multimodal search capabilities using signals such as text, image, video, audio, and user behavior.
  • •Support data analysis, model evaluation, and offline/online experiment work to improve search experience and business impact.

Key Requirements

  • •Currently pursuing a PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
  • •Solid programming skills in Python, C++, or a related language.
  • •Strong understanding of machine learning and deep learning fundamentals.
  • •Hands-on experience in at least one relevant area such as search/retrieval, ranking, recommender systems, NLP, multimodal learning, LLMs, or applied ML.
  • •Ability to conduct structured technical exploration and translate ideas into working prototypes or experimental results under guidance.
Experience:Search/retrievalRankingRecommender systemsNLPMultimodal learningLLMsApplied ML
Education:PhD / Doctorate in PhD (Software Development, Computer Science, Computer Engineering, or related technical discipline)
Skills:Problem-solvingAnalytical thinkingStructured explorationCommunicationCollaboration
Tech Stack:PythonC++

Company Brief

TikTok
Short-form video platform that lets users create, share, and discover entertainment content through algorithmic recommendations. It also offers advertising and creator tools for brands, influencers, and businesses.
Industry: Digital Media
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Headquarters: Singapore, Singapore
Founded: 2016
WebsiteLinkedIn