Senior GenAI Backend Engineer — Java & Enterprise AI

UOB; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

1011 United Overseas Bank Ltd is seeking a Senior Java & GenAI Engineer to join a fast moving team delivering enterprise GenAI use cases. The team has already built and delivered several GenAI solutions, including a contact center assistant and an internal data chatbot.

The contact center assistant is mainly developed in Java, while the broader GenAI stack includes LangGraph, LangChain, DeepAgent, Langfuse and Elastic.

Qualifications

• Strong Java backend experience with enterprise systems.
• Hands-on exposure to GenAI and related tooling.
• Familiarity with REST APIs and resilience patterns.

Responsibilities

• Build reliable backend services in Java for GenAI use cases.
• Apply REST API design and resilience patterns in production.
• Work with GenAI orchestration frameworks and agent-based workflows.
• Improve existing applications without over-engineering them.
• Learn quickly and challenge weak designs constructively.
• Operate well in an enterprise technology environment.
• Balance delivery speed with production quality.
• Bring energy, curiosity and pragmatism to the team.

Skills

Java backend

GenAI

REST API design

GenAI orchestration

Production quality

Tools

LangGraph

LangChain

DeepAgent

Langfuse

Elastic

Job description

1011 United Overseas Bank Ltd is seeking a Senior Java & GenAI Engineer to join a fast moving team delivering enterprise GenAI use cases. The team has already built and delivered several GenAI solutions, including a contact center assistant and an internal data chatbot.

The contact center assistant is mainly developed in Java, while the broader GenAI stack includes LangGraph, LangChain, DeepAgent, Langfuse and Elastic.