We are seeking an experienced Application Platform Solution Architect to lead the end-to-end architecture and technical governance of an enterprise application platform for a Singapore Government Agency.

The platform supports organisation-wide case management applications and is built on the OutSystems low-code platform. The organisation is also expanding its capabilities in Generative AI and Agentic AI, integrating AI-powered services into enterprise applications and business workflows.

In this role, you will define architectural standards, establish reusable components, drive platform scalability and resilience, and oversee the integration of AI capabilities while ensuring alignment with enterprise architecture, security and government ICT policies.

Key Responsibilities

1. Application Platform Architecture & Governance

• Lead the end-to-end architecture and technical design of enterprise application platforms.
• Define and maintain the OutSystems platform reference architecture, including architectural standards, reusable components, shared modules and templates.
• Translate business and non-functional requirements into technical architecture specifications.
• Review application designs, common services and reusable modules to ensure quality, consistency and alignment with enterprise architecture.
• Establish architecture governance and promote component reusability across applications.

2. AI & Agentic AI Architecture

• Govern the integration of enterprise applications with AI platforms and shared AI services, including Generative AI and Agentic AI capabilities.
• Define reference architectures and design patterns for Agentic AI, including tool/API integration, agent identity and access management, human-in-the-loop controls and AI guardrails.
• Ensure AI capabilities are securely and effectively embedded into enterprise application workflows.
• Work closely with AI engineers and development teams to ensure architectural alignment and compliance.

3. Performance, Scalability & Observability

• Define and oversee non-functional requirements covering performance, scalability, availability, resiliency and security.
• Lead capacity planning, performance and load testing, and system tuning to ensure enterprise-level application performance.
• Establish observability architecture and standards covering logging, metrics, distributed tracing, SLIs/SLOs and alerting.
• Ensure end-to-end monitoring of application platforms and AI agent behaviour.

4. Security & Compliance Governance

• Ensure application architecture complies with Government ICT policies, including IM8 and ICT&SS management requirements.
• Lead architecture and security reviews and submissions, including System Security Plans (SSP) and Architecture Review Board assessments.
• Conduct regular reviews of platform and application security controls, identify gaps and drive remediation with DevSecOps and engineering teams.
• Monitor and report control health and compliance status to stakeholders.

Requirements

• Degree or Diploma in Computer Science, Computer Engineering, Information Technology or a related discipline.
• At least 7 years of relevant IT experience, including a minimum of 3 years in a Solution Architect, Technical Architect or Technical Lead capacity.
• Hands-on experience in at least 3 full software development life cycles.
• Strong hands-on experience designing and implementing enterprise applications using the OutSystems low-code platform, including reusable modules, system integrations and performance optimisation.
• Excellent data modelling and SQL skills.
• Strong understanding of Service-Oriented Architecture (SOA), web services, APIs and enterprise application development.
• Familiarity with server-side .NET and/or Java development.
• Experience defining and implementing non-functional requirements for high-performance, highly available and scalable enterprise applications.
• Strong understanding and practical application of Government ICT&SS policies, IM8 and System Security Plan (SSP) requirements.
• Experience with observability architecture, including logging, monitoring, metrics and distributed tracing.
• Experience in architecture governance, platform standards, reusable components and technical control management.
• Good understanding of Government technology ecosystems and interoperability with Whole-of-Government (WOG) shared platforms and services.
• Strong stakeholder management, communication and technical leadership skills.

Added Advantages

• OutSystems certifications, particularly Architecture Specialist or Associate/Professional Reactive Developer.
• Experience integrating Generative AI services into enterprise applications, particularly Amazon Bedrock.
• Experience with Agentic AI architecture, including tool calling, multi-agent orchestration and human-in-the-loop controls.
• Familiarity with Government Commercial Cloud (GCC) and Singapore Government security requirements.
• Experience governing an application platform Centre of Excellence (CoE) or shared AI services.

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