Software Test Engineer (AI), TikTok Search
TikTok, Singapore
About the job
The TikTok Search Engineering Test Team owns the end-to-end quality of TikTok's global search experience—from query understanding, retrieval, and ranking to generative search experiences (LLM Answers and RAG) and search safety. TikTok Search operates across hundreds of markets and languages, connecting billions of users every day with the videos, creators, products, and information they are looking for. Every relevance regression, latency fluctuation, or unsafe result directly impacts user trust and business outcomes.
We are redefining how search quality is built. By leveraging Large Language Models (LLMs), AI agents, and intelligent automation, we are reimagining the entire search testing lifecycle—from query set construction and relevance evaluation to ranking diagnostics, LLM-generated answer evaluation, RAG pipeline verification, and search safety red teaming.
Our mission is to build next-generation AI-powered evaluation and testing capabilities that enable TikTok Search to iterate faster, ship smarter, and remain trustworthy at global scale. You will work at the intersection of Search Engineering, Quality Engineering, and Generative AI, helping shape the future of AI-native Search Quality at TikTok.