GenAI Systems Engineer: RAG, LangGraph & Python Architect

Hong Kong Unison Limited; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Hong Kong Unison Limited is seeking a highly skilled AI Engineer to design, develop and deploy enterprise GenAI applications in Singapore. You will build RAG pipelines, create robust prompts, and orchestrate LangGraph-based workflows across business units.

The role requires strong Python expertise, hands-on LangGraph and LangChain experience, and a solid background in integrating multiple LLMs with enterprise data sources. Join a fast-paced team delivering scalable GenAI solutions.

Qualifications

• Proven experience building enterprise GenAI applications with Python.
• Hands-on knowledge of LangGraph, RAG pipelines and LLM integrations.
• Experience crafting prompts and prompt templates for various use cases.

Responsibilities

• Design and develop enterprise Generative AI applications using Python.
• Build RAG pipelines for knowledge retrieval and context management.
• Develop AI workflows and multi-agent systems with LangGraph.
• Create effective prompts and templates for LLM use cases.
• Integrate enterprise knowledge bases using Elasticsearch or similar systems.
• Develop AI assistants, chatbots, and agentic AI solutions.
• Connect LLMs with enterprise APIs, databases, and repositories.
• Optimize retrieval quality, vector search, and response accuracy.
• Evaluate, fine-tune, and monitor LLM performance.
• Collaborate with stakeholders to translate use cases into solutions.
• Ensure governance, security, and responsible AI practices.

Skills

Python

LangGraph

RAG

Prompt Engineering

Generative AI

Elastic Knowledge / Elasticsearch

LangChain

LLM integrations

Vector databases

Tools

LangGraph

Elasticsearch

Docker

CI/CD

Job description

Hong Kong Unison Limited is seeking a highly skilled AI Engineer to design, develop and deploy enterprise GenAI applications in Singapore. You will build RAG pipelines, create robust prompts, and orchestrate LangGraph-based workflows across business units.

The role requires strong Python expertise, hands-on LangGraph and LangChain experience, and a solid background in integrating multiple LLMs with enterprise data sources. Join a fast-paced team delivering scalable GenAI solutions.