Senior AI Applications Developer for Enterprise Solutions

Private Advertiser; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Private Advertiser is seeking an experienced AI Applications Developer to design, build and support enterprise AI-enabled applications, copilots and knowledge search experiences. The role emphasizes AI application delivery, with focus on secure data handling and scalable, governable solutions.

You will translate business requirements into practical AI features using LLMs, RAG, prompt engineering and API integration, working with security, data and application teams to ensure production-ready

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, Data Engineering or a related field.
• Minimum 6 years hands-on experience in application development, software engineering, integration development or enterprise application delivery.
• Experience building or integrating AI-enabled applications, GenAI features, copilots, chatbots, document intelligence or knowledge search solutions.
• Minimum 4 years of hands-on experience with .NET/C#, Python, backend services and APIs.
• Experience with large language model patterns, prompt engineering, RAG, embeddings, vector search and grounding.
• Experience with Azure OpenAI, Azure AI Search, Azure AI Foundry, OpenAI-compatible APIs or similar enterprise AI platforms.
• Experience with SQL databases and data governance.

Responsibilities

• Design, develop and support AI-enabled applications, copilots, internal assistants, document Q&A solutions, knowledge search tools and intelligent workflow automation features.
• Translate business problems into AI application use cases, user journeys, functional requirements, acceptance criteria and production-ready features.
• Build Retrieval-Augmented Generation solutions using document ingestion, embeddings, vector search, semantic search, filtering and source citation patterns.
• Develop AI orchestration logic for prompts, tools, memory, retrieval, function calling, API calls and workflows.
• Design and maintain prompt templates, system instructions, guardrails, response formats and testing datasets.
• Develop backend services, APIs and application logic using .NET/C#, Python, REST APIs and enterprise frameworks.
• Develop frontend components for chat interfaces, search experiences and workflow forms with approved technologies.
• Integrate AI applications with enterprise systems, SQL databases and Secure data sources.
• Implement secure authentication, authorization, data filtering and user-context-aware responses.
• Ensure confidential data handling per governance and data protection requirements.
• Build validation and testing approaches for AI outputs and user feedback loops.
• Apply secure coding practices, input validation and secure API development.
• Build and maintain CI/CD pipelines, automated tests and deployment practices.
• Monitor and troubleshoot production AI apps and performance issues.
• Maintain comprehensive documentation and runbooks.
• Collaborate with security, infra and data teams for governance and safety.

Skills

GenAI features

Copilots/Chatbots

.NET/C#

Python

REST APIs

AI integration

SQL Server

Azure OpenAI

Data governance

Security practices

Stakeholder engagement

Education

Bachelor’s degree in Computer Science or related field

Tools

Git

CI/CD pipelines

SharePoint

PostgreSQL

Job description

Private Advertiser is seeking an experienced AI Applications Developer to design, build and support enterprise AI-enabled applications, copilots and knowledge search experiences. The role emphasizes AI application delivery, with focus on secure data handling and scalable, governable solutions.

You will translate business requirements into practical AI features using LLMs, RAG, prompt engineering and API integration, working with security, data and application teams to ensure production-ready