Jacal Wu

HKT's Data Monetisation Team is looking for a highly capable Senior Data Scientist specializing in LLMs to design, build, and optimize scalable AI systems, including Retrieval-Augmented Generation (RAG), playing a key role in enabling intelligent, context-aware applications that enhance customer experience and drive measurable business impact.

Senior Data Scientist - LLM - HKT

Assist Lead Data Scientist in building end-to-end Retrieval-Augmented Generation (RAG) pipelines for accurate, context-aware AI responses.

• Optimize document chunking, re-ranking, embedding generation, and vector retrieval
• Optimize prompt and implement guardrails to minimize hallucinations and improve factual grounding
• Monitor retrieval performance, query relevance, and response quality through A/B testing and metrics
• Collaborate with data engineers and scientists to integrate RAG into production systems
• Manage vector databases, feature stores, and data pipelines

Master's degree or PhD - Statistics, Machine Learning, Mathematics, Computer Science, Economics, or any other related quantitative field