Senior AI Engineer (RAG, LLM, Python)

A leading Hong Kong organisation seeks Senior AI Engineer to advance Generative and Agentic AI, leveraging open-source LLMs, RAG, and embedding technologies while driving ethical innovation through transformative, high-impact artificial intelligence projects.

Key responsibilities:

As a Senior Artificial Intelligence Engineer, you will play a pivotal role in designing advanced solutions using generative AI technologies.

• Design and develop smart embedding techniques to boost AI model performance
• Build and implement AI applications using frameworks like Lang Chain and LangGraph
• Create and improve a prompt library, making it better with user feedback
• Fine-tune large language models, especially open-source or China-based models like Qwen, Llama, and Mistral
• Oversee data labelling processes to ensure high-quality training data

Candidate profile:

To excel in this role, you should have substantial experience in machine learning or artificial intelligence technologies, particularly within generative AI projects.

• Degree in IT, Computer Science, or related fields
• 3-5 years of experience in AI or machine learning, with at least 1 year focused on Generative AI
• Strong coding skills in Python and familiarity with frameworks like Lang Chain
• Experience deploying AI solutions on cloud platforms (AWS, Azure) or on-premises
• Great problem-solving skills and a practical, solution-oriented mindset

About the company:

A leading organisation in the transportation and infrastructure industry, this company is recognised for delivering integrated mobility solutions supported by large-scale asset development and operational excellence. It stands out through its strong focus on innovation, sustainability, and smart city initiatives, combining public service impact with commercial expertise. Its reputation is built on reliability, long-term growth, and shaping connected urban communities.

Keywords: generative AI, LLMs, prompting, embeddings, python, RAG

What's next:

If you’re ready to make a meaningful impact by advancing the intersection of technology and society, apply now!