Production AI/LLM Engineer: Prompt Craft & Model Integration

NCS Pte Ltd

Singapore

On-site

SGD 120,000 - 190,000

Full time

14 days+

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Job summary

NCS Pte Ltd in Singapore is seeking an AI/LLM Engineer focused on prompt engineering, model integration, evaluation, and production quality within NCS AI Central’s Forward Deployed Engineering model. This role aims to take GenAI solutions from POC/POV to production by building prompts, integrating foundation models, and creating automated evaluation frameworks.

You will work with AI Architects, Solution Architects, AI Engineers, and Testers to provide evidence-based model recommendations,

Qualifications

3+ years working hands-on with LLMs across prompt engineering, model integration, and evaluation.
Experience designing and optimising prompts and prompt chains for production applications.
Strong grasp of evaluation methodologies — accuracy/hallucination/toxicity metrics, human-in-the-loop evaluation, A/B testing.
Hands-on scripting ability (Python) to build and automate evaluation harnesses and integration/testing pipelines.
Statistical literacy — able to design a representative test/benchmark set and interpret results rigorously.

Responsibilities

Design, test, and optimise prompts and prompt chains for production use cases.
Integrate foundation models into applications via APIs and gateways.
Design and maintain evaluation harnesses and benchmark suites for model comparisons.
Proactively red-team AI systems and surface failure modes with defensible metrics.
Contribute reusable prompt libraries, evaluation templates, and benchmark datasets.