Healthcare AI Engineer - LLMs, OCR & Production ML

Fullerton Healthcare Group Pte Ltd; Singapore; On-site; SGD 100,000 - 140,000; Full time

Job summary

Fullerton Health Group is seeking an AI Engineer to collaborate with AI/Data teams on cutting-edge AI and LLM technologies for healthcare challenges at scale. You will design, build, and productionize AI systems for document processing, automated medical-claim adjudication, and other AI-powered solutions across regions.

You will own the full model lifecycle—from data ingestion and finetuning to API delivery and GPU-optimized deployment—ensuring reliability, security, and performance across

Qualifications

• Bachelor’s degree or higher in CS/Math/Stats/Bioinformatics or related field.
• 1–3 years in AI/ML Engineer roles with production-ready experience.
• Strong Python skills for ML, data processing, and API/backend development.
• Hands-on experience with LLMs, prompts, RAG, embeddings, and evaluation.
• Proficiency with SQL/NoSQL and vector databases for embeddings and search.
• Awareness of data privacy, AI safety, and secure healthcare deployment.
• Experience with cybersecurity for AI/ML systems and secure network/API design.
• Excellent written and verbal communication; able to explain AI concepts to varied audiences.

Responsibilities

• Build, deploy and maintain OCR and Document AI pipelines to extract structured data from medical documents for downstream adjudication.
• Develop and optimise LLMs, including prompt engineering, inference tuning and cost/latency considerations; implement MLOps/LLMOps.
• Design retrieval-augmented generation (RAG) pipelines, embeddings, and agentic workflows for complex automation.
• Expose AI capabilities via secure Python APIs/services integrated with Fullerton Health systems.
• Ingest, cleanse and validate structured/unstructured data; build scalable batch/streaming data pipelines across regions.
• Design evaluation frameworks (offline/online) and monitor model performance, drift and latency with guardrails.
• Strengthen security posture: defend against model poisoning, prompt injection, and adversarial threats; harden APIs and cloud infra.
• Collaborate with product, backend, and ops to ship production-grade AI features and translate outputs into actionable insights.

Skills

Python

ML Engineering

Async

LLMs

Prompt Engineering

RAG Pipelines

Embeddings

Model Evaluation

SQL/NoSQL

Vector Databases

Data Privacy

Security Hardening

Communication

Education

Bachelor’s degree in CS/Math/Stats/Bioinformatics

Tools

PostgreSQL

MongoDB

Job description

Fullerton Health Group is seeking an AI Engineer to collaborate with AI/Data teams on cutting-edge AI and LLM technologies for healthcare challenges at scale. You will design, build, and productionize AI systems for document processing, automated medical-claim adjudication, and other AI-powered solutions across regions.

You will own the full model lifecycle—from data ingestion and finetuning to API delivery and GPU-optimized deployment—ensuring reliability, security, and performance across