LLM Algorithm Engineer, Search
LY Corporation
- Location
- Tokyo, Japan
- Level
- Senior
- Posted
- 8 Oct 2026
LLM algorithmSeniorOn-siteActive
Original posting
Skills
- LLM
- Search
- RAG
- Ranking
- PyTorch
Summary
LY Corporation, the company behind Yahoo! Japan and LINE, is hiring an LLM algorithm engineer in Tokyo for search. The project uses a language model to rewrite queries, summarize results, and feed features to the classic ranker. You will train the query and summary models, build an evaluation with search editors, and measure whether the generative feature helps or hurts click metrics. The role is on site in Tokyo. Requirements: LLM fine-tuning or retrieval experience, PyTorch, and respect for search quality reviewers.
Full description
LY Corporation, the company behind Yahoo! Japan and LINE, is hiring an LLM algorithm engineer in Tokyo for search. The project uses a language model to rewrite queries, summarize results, and feed features to the classic ranker.
You will train the query and summary models, build an evaluation with search editors, and measure whether the generative feature helps or hurts click metrics. The role is on site in Tokyo.
Requirements: LLM fine-tuning or retrieval experience, PyTorch, and respect for search quality reviewers.