Senior AI Applications Engineer

RAPSYS TECHNOLOGIES PTE LTD; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE LTD in Singapore is seeking an experienced AI Application Engineer to design, build and deploy AI-powered enterprise applications, with a focus on performance, security and user experience. You will refactor prototypes into production-grade software, implement end-to-end AI services, and work with Azure AI services and enterprise integrations.

This role requires strong full-stack skills and a solid grounding in security and observability, within an agile team.

Qualifications

• 7+ years of hands-on software engineering experience.
• Experience building, deploying and supporting enterprise or cloud-native applications.
• Strong full-stack engineering capability across modern frontend, backend and API development frameworks such as React, TypeScript, Node.js, Python, .NET, Java or equivalent technologies.
• Hands-on experience designing and integrating REST APIs, backend services, databases, authentication mechanisms and enterprise integrations.
• Practical experience building AI-enabled applications using LLMs, RAG patterns, embeddings, vector search, agents, automation or orchestration frameworks.
• Working knowledge of Azure AI services such as Azure OpenAI, Azure AI Foundry, Azure AI Search, Azure Machine Learning and related Azure services.
• Experience applying secure software development practices including input validation, secrets management and least-privilege access.
• Familiarity with OAuth 2.0, OpenID Connect, SAML, JWT, RBAC and enterprise identity integration.
• Hands-on experience with CI/CD pipelines using Azure DevOps, GitHub Actions or equivalent.
• Knowledge of containerisation, cloud deployment patterns and production support.
• Ability to assess prototype quality and plan for production readiness.
• Understanding of AI risks, including hallucination, data leakage and prompt injection.
• Strong communication and stakeholder management skills.
• Comfortable in an agile, product-oriented environment.

Responsibilities

• Refactor prototypes into production-grade solutions with clean architecture and automated deployment pipelines.
• Design, build and harden AI-enabled applications including chatbots, RAG solutions and workflow tools.
• Collaborate with product owners to clarify use-cases, user journeys and production readiness.
• Implement full-stack capabilities across frontend, backend, APIs, data integration, authentication and monitoring.
• Integrate with approved AI services such as Azure AI and enterprise APIs.
• Apply secure and responsible AI patterns including prompt management and content safety controls.
• Develop reusable patterns and engineering playbooks for AI delivery.
• Support production-readiness assessments covering security, data classification and observability.
• Build automated test suites for AI applications and guardrail validation.
• Implement observability for AI apps including logs, latency and metrics.
• Collaborate with platform engineers to deploy using CI/CD, containerisation and API management.
• Document solution designs and procedures for maintainability.

Skills

Full-stack development

React

TypeScript

Node.js

Python

.NET

Java

REST APIs

Azure AI services

Security best practices

CI/CD

Containerisation

Observability

Job description

RAPSYS TECHNOLOGIES PTE LTD in Singapore is seeking an experienced AI Application Engineer to design, build and deploy AI-powered enterprise applications, with a focus on performance, security and user experience. You will refactor prototypes into production-grade software, implement end-to-end AI services, and work with Azure AI services and enterprise integrations.

This role requires strong full-stack skills and a solid grounding in security and observability, within an agile team.