Position: Korean-Speaking Python Engineer – AI-Assisted Legal Research Location: Tokyo, Japan Work Style: Hybrid (2-3 days in office) Role Overview: Expand an existing AI-assisted legal research platform from Japan to Korea. Focus on building and improving AI-powered search systems for legal professionals using large-scale legal content and multilingual data. Key Responsibilities: - Extend AI-assisted legal research systems to support Korean-language legal content - Build backend pipelines for content chunking, vectorization, hybrid search (keyword + semantic), result ranking, and prompt customization - Improve retrieval quality for Korean legal queries - Collaborate with backend engineers, AI specialists, frontend teams, and Korean legal experts - Contribute to AI systems powering multiple legal research products Must-Have Qualifications: - Strong Python development experience - Practical understanding of RAG, vector search/OpenSearch, and hybrid search systems - Production backend systems experience - Korean language reading and communication ability Nice-to-Have: - Multilingual or NLP system experience - Data/platform engineering background - AWS or cloud environment familiarity Why Join: Work on production AI products used by legal professionals, shape AI's understanding of complex legal information, collaborate across regions, and drive market expansion.