AI Agent Engineer: Design & Optimize Domain-Specific Agents

Oppstar Berhad; Penang; On-site; MYR 150,000 - 210,000; Full time

Job summary

Oppstar Berhad is seeking an expert to design, build, and optimize domain-specific AI agents across semiconductor design, manufacturing, and internet products. You will own end-to-end lifecycle from requirements to architecture, tool integration, and iterative improvement based on user feedback.

You will craft multi-step reasoning flows, integrate external tools and APIs, and collaborate with domain experts to encode workflows into robust agentic systems.

Qualifications

• Understanding agentic systems: planning, reasoning, memory, tool use and reflection.
• Design modular, scalable architectures for domain-specific applications.
• Hands-on with commercial and open-source LLMs.
• Proficient in prompt engineering, chaining, and policy design.
• Experience building RAG pipelines: ingestion, embedding, vector search, context fusion.
• Ability to optimize retrieval relevance and mitigate hallucination.
• Connecting agents to external tools, databases, and enterprise APIs.

Responsibilities

• Design multi-step reasoning flows and integrate external tools and APIs.
• Optimize prompts and policies; implement evaluation strategies for task success, safety and reliability.
• Work with LLM platforms, RAG, and orchestration frameworks.
• Translate business and engineering use cases into agent solutions.
• Collaborate with domain experts to encode workflows into robust agentic systems.
• Connect agents to enterprise APIs (CRM, internal microservices).
• Implement multi-agent coordination and complex workflow automation.
• Design robust evaluation strategies and data-driven improvement and A/B testing.

Skills

Agent architectures

LLM experience

Prompt engineering

RAG pipelines

Multi-agent coordination

Tool integration

Evaluation strategies

API integration

Tools

LangChain

LlamaIndex

Semantic Kernel

Job description

Oppstar Berhad is seeking an expert to design, build, and optimize domain-specific AI agents across semiconductor design, manufacturing, and internet products. You will own end-to-end lifecycle from requirements to architecture, tool integration, and iterative improvement based on user feedback.

You will craft multi-step reasoning flows, integrate external tools and APIs, and collaborate with domain experts to encode workflows into robust agentic systems.