AI Agent & LLM Engineer

IT CONSULTANCY & SERVICES PTE LTD; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

IT Consultancy & Services Pte Ltd in Singapore is seeking a skilled engineer to design and implement LLM-based applications, RAG systems, and AI agents for product and enterprise use cases. You will develop proactive AI agents, integrate with devices, databases, and APIs, and apply retrieval, prompting, and tool-calling techniques to deliver reliable, secure solutions in diverse enterprise environments.

This role offers opportunities to work on cutting-edge AI solutions within a consultative

Qualifications

• Bachelor's degree or above in Computer Science, AI, Machine Learning, NLP, Data Science, Engineering, or a related field.
• At least 2 years of relevant experience in LLM applications, information retrieval, RAG, AI agents, NLP, or AI application development.
• Strong Python programming skills and experience developing maintainable applications or backend services.
• Hands-on experience with LLM APIs, open-source LLMs, embeddings, vector databases, semantic search, or retrieval systems.
• Practical understanding of RAG architecture, prompt engineering, retrieval strategies, evaluation, and hallucination mitigation.
• Experience with tool calling, function calling, agent workflows, APIs, databases, or backend integration.
• Ability to independently design and deliver end-to-end LLM, RAG, AI agent, or AI application projects

Responsibilities

• Design, develop, and improve LLM-based applications, RAG systems, AI assistants, and agentic AI solutions for product and enterprise use cases.
• Develop proactive and interactive AI agents that can understand user requests, retrieve information, use tools, execute workflows, and interact through text or voice.
• Build and optimize core capabilities such as document ingestion, information retrieval, prompting, tool calling, agent orchestration, memory, and human-in-the-loop control.
• Integrate AI agents with devices, internal systems, databases, APIs, document repositories, and third-party services.
• Evaluate and apply appropriate technologies, including LLMs, speech models, vector databases, retrieval methods, knowledge graphs, and agent frameworks.
• Define and implement evaluation methods for retrieval quality, response accuracy, faithfulness, task completion, latency, reliability, and safety.
• Implement secure and reliable AI application patterns, including access control, permission-aware retrieval, guardrails, monitoring, and failure handling.

Skills

Python

LLM APIs

Vector databases

Semantic search

RAG architecture

Prompt engineering

Agent workflows

Backend integration

Education

Bachelor's degree or above in Computer Science or related field

Tools

Open-source LLMs

Embeddings

Retrieval systems

APIs

Databases

Tool calling

Function calling

Job description

IT Consultancy & Services Pte Ltd in Singapore is seeking a skilled engineer to design and implement LLM-based applications, RAG systems, and AI agents for product and enterprise use cases. You will develop proactive AI agents, integrate with devices, databases, and APIs, and apply retrieval, prompting, and tool-calling techniques to deliver reliable, secure solutions in diverse enterprise environments.

This role offers opportunities to work on cutting-edge AI solutions within a consultative