ML/AI Engineer

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE. LTD. seeks an ML/AI Engineer to design and implement agent‑based AI architectures and end‑to‑end ML/AI solutions. You will orchestrate agents, integrate tools, and ensure governance and security while delivering production quality systems.

You will work with DSAD data scientists and business users to build scalable ML workflows, deploy LLM‑enabled apps, and maintain observability, testing, and operational runbooks for fraud detection and risk assessment.

Qualifications

• Degree in Computer Science, AI, Data Science, or related field.
• 3–5 years hands‑on ML/AI development including at least one LLM‑enabled deployment.
• Strong Python software engineering skills with API development and testing.
• Experience with LLM apps, tool use, and multi‑agent frameworks.
• Experience integrating ML solutions with data platforms and cloud services.
• Knowledge of AI governance, security, and responsible AI practices.

Responsibilities

• Design end‑to‑end ML/AI architecture for agentic solutions, including orchestration and tool integration.
• Develop AI agents to analyse sources and identify risks for officer review.
• Build detection features and translate risks into analytics and logic.
• Integrate workflows with data platforms (Redshift/Glue/PySpark) and data pipelines.
• Develop modular, tested services with APIs and operational ownership.
• Create CI/CD automation for code, prompts, and AI components.
• Implement evaluation, guardrails, observability and governance controls.
• Ensure reliability, monitoring, and incident response for ML systems.
• Collaborate with data scientists and business users to address fraud detection needs.
• Document code, architecture decisions, and support knowledge transfer.

Skills

Python

LLM Applications

LangGraph

CrewAI

API Development

CI/CD

MLOps

PySpark

Education

Degree in Computer Science or related field

Tools

LangGraph

CrewAI

PySpark

Docker

Job description

Role: ML/AI Engineer

JD

Working Hours Mon–Fri, 8:30am–6:00pm

Key Responsibilities

• Agentic AI Architecture: Design the end-to-end architecture for FAM agentic AI solutions, including agent orchestration, workflow design, state management, tool integration, human approval points and system interactions, using suitable frameworks such as LangGraph or CrewAI. Architecture decisions are subject to consultation with DSAD’s Platform Team.
• Emerging‑Risk Agent Development: Develop AI agents that analyse approved information sources to identify, generate and prioritise evidence‑linked emerging fraud and abuse risks for officer review.
• Detection Engineering Agent Development: Develop AI agents that assess data feasibility, propose candidate risk indicators and detection features, and support the translation of validated risks into actionable analytics and detection logic.
• Data & Analytics Integration: Integrate agent workflows with FAM 2.0 data and analytics components, including Redshift, Glue and PySpark. Build and maintain data preparation and feature‑engineering processes required to support AI and ML workloads.
• Production Engineering: Convert prototypes into modular, tested, maintainable and deployable services, workflows, APIs or agentic applications, with clear interfaces, version control and operational ownership.
• CI/CD & Automation: Build automated workflows for testing, validation and promotion of code, prompts, workflows and AI components across environments, incorporating quality, security and human approval gates where required.
• Evaluation & AI Guardrails: Implement evaluation frameworks and governance controls covering output quality, reproducibility, traceability, access control, exception handling, human approval gates and safeguards against untrusted inputs such as prompt injection.
• Monitoring & Reliability: Implement observability, dashboards and alerts covering system health, latency, throughput, errors, resource utilisation, data quality, workflow performance and operating costs. Support incident management, troubleshooting and root‑cause analysis.
• Domain Collaboration: Work closely with DSAD data scientists, business users and analysts to capture domain expertise, refine agent workflows and ensure solutions address operational fraud detection needs.
• Documentation & Knowledge Transfer: Produce maintainable code, architecture decision records, evaluation evidence, operational runbooks and technical documentation, and conduct knowledge transfer to support long‑term sustainability of the solution.

Requirements & Qualifications

A. Educational Qualification & Experience

Education: Degree in Computer Science, Artificial Intelligence, Data Science, Software Engineering, Information Systems or a related technical discipline.

Experience: 3–5 years of hands‑on experience building and deploying ML/AI applications. This must include at least one LLM‑enabled system delivered beyond prototype into operational use.

B. Technical & Professional Competencies

• Strong Python software engineering capability, including API development, testing, version control and modular system design.
• Hands‑on experience building and deploying ML/AI applications, including at least one LLM‑enabled or agentic AI solution beyond proof‑of‑concept stage.
• Experience with LLM applications, retrieval, tool use, workflow orchestration or multi‑agent frameworks such as LangGraph, CrewAI or equivalent.
• Experience integrating AI/ML solutions with enterprise data platforms, databases, APIs or cloud services.
• Ability to design and implement systematic evaluation frameworks for AI systems, including testing, benchmarking, observability and reproducibility.
• Working knowledge of AI governance, security and Responsible AI practices, including human‑in‑the‑loop controls, access management, auditability and safeguards against misuse.
• Strong problem‑solving and analytical skills, with the ability to translate business requirements into scalable AI‑enabled solutions.

Preferred (Advantageous)

• Experience with AWS services such as Bedrock, Redshift, Glue, S3, Lambda or related cloud‑native services.
• Experience with PySpark, Databricks or large‑scale data processing and feature engineering pipelines.
• Experience with CI/CD, containerisation, MLOps or model deployment tooling (e.g. Docker, MLflow, GitHub Actions, Jenkins).
• Experience implementing monitoring, observability and operational support processes for ML/AI applications.
• Experience delivering fraud detection, risk, compliance, investigation or decision‑support solutions.
• Experience with knowledge retrieval, RAG, graph‑based workflows, prompt management, model evaluation tooling or AI observability platforms.