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Machine Learning Engineer (AI Search ), TikTok Search

Singapore💼 Full-time🗓 2026-09-28

Core

Build AI Search Agents and enhance LLM-based query understanding for TikTok Search using RAG, reinforcement learning, and automated decision-making.

Role type

Senior IC machine-learning engineer (AI Search & LLM Agents)

Builds

AI Search Agents, LLM-powered question-answer cards, TikTok official AI assistant

Domain

Consumer social media, Large Language Models, Search

Deliverable

production ML models

Required skills

C++, Python, algorithms and data structures, LLM fundamentals, reinforcement learning, knowledge representation, automated decision-making

Preferred skills

RAG optimization, RLHF/SFT, Agent framework development, multi-turn conversation processing

Technologies

LLM ChatBot, RAG, fine-tuning, inference optimization

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