Senior Platform Infrastructure Engineer

Government Technology Agency; Singapore; On-site; SGD 150,000 - 210,000; Full time

Job summary

Government Technology Agency (MOF) seeks a Senior Platform Infrastructure Engineer to oversee the GeBIZ X enterprise infrastructure, integrating the Ivalua-based base with extended SaaS and COTS apps, hosted on AWS GCC.

You will lead design, security, resilience, and scalable operations, drive DevSecOps with SHIP-HATS, and mentor teams across GovTech and partner vendors.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or related field; 8–10 years in Infra/DevOps/SRE.
• Proven AWS/GCC experience and enterprise COTS integration.

Responsibilities

• Lead hands-on design and implementation of the platform ecosystem in AWS/GCC.
• Architect and manage API Gateway as central orchestrator.
• Lead COTS installation and SaaS integration within AWS/GCC.
• Drive DevSecOps with SHIP-HATS and automate infrastructure delivery.
• Develop roadmaps and mentor teams across functions.

Skills

Infrastructure leadership

Systems thinking

Stakeholder management

Mentorship

Cross-team collaboration

Education

Bachelor's degree in Computer Science/Engineering

Tools

Terraform

GitLab

SonarQube

AWS API Gateway

Job description

Whole of Government Procurement initiative

The Ministry of Financeis responsible forthe Government Procurement (GP) policies, which govern how government agencies conduct their procurement. With evolving needs of our public officers and changing procurement landscape, MOF is embarking on the Whole of Government Procurement initiative.

GeBIZ X

is the MOF product that would transform the procurement and business experience for WOG public officers and external suppliers.

Who we are looking for

The Ministry of Finance is transforming government procurement through the Whole of Government Procurement initiative. GeBIZ X will revolutionise the procurement experience for WOG public officers and external suppliers.

We are seeking a Senior Platform Infrastructure Engineer to oversee the Enterprise Infrastructure of the GeBIZ X Product. You will demonstrate technical leadership in infrastructure engineering, designing, building, and operating the infrastructure ecosystem that comprises Ivalua SaaS as the Base Solution, seamlessly integrated with Extended Solutions including COTS and SaaS applications, connecting to government agency systems and the Singapore Government Tech Stack (SGTS). This orchestration layer, hosted on AWS Government Commercial Cloud (GCC) using API Gateway and SFTP protocols, serves as the critical integration hub.

You willbe expected tonavigate technical complexity acrossGovTech,Government agencies and technology partners, ensuring the interoperability of GeBIZ X and the wider network of systems whilstmaintainingresilience, security, scalability, and compliance with government standards.

Core Values

Decision-making

• When making important decisions, weidentifyoverarching goals, weigh up our options,identifyimpact, and clearly communicate and manage the risks and trade-offs of our decision.

Ownership

• In addition to technical responsibilities, this means having opinions on what is being done and having ideas on what should be done next. Building something that you believe in is the best way to build something good.

Continuous Learning

• Working onnew ideasoften means not fully understanding what you are working on. Taking time to learn new architectures, frameworks, technologies, and even languages is not just encouraged but essential.

What you will be working on

Key Responsibilities

• Full-Stack Infrastructure Engineering (AWS/GCC)
  Lead hands-on design and implementation of the complete platform ecosystem in AWS/GCC, including compute, storage, and specialised networking. Architect and manage API Gateway as central orchestrator governing traffic between external SaaS and internal government services.

• COTS Implementation & SaaS Integration
  Lead installation, configuration, and maintenance of COTS products (e.g., e-Signature solutions like Sign withSingpass) within AWS/GCC. Engineer secure, high-performance bridges to external SaaS environments andestablishmonitoring standards across all layers.

• DevSecOps& SHIP-HATS Integration
  ChampionDevSecOpspractices by driving SHIP-HATS ecosystem adoption (GitLab, SonarQube, etc.) to automate infrastructure delivery. Ensure strict adherence to IM8 policies andGovTech's"Security-by-Design" principles whilst building automation tools to reduce manual operations.

• Strategic Alignment & Technical Leadership
  Develop roadmaps for complex infrastructure initiatives, coordinate across teams and external partners, manage technical risks proactively, and invest in team growth through mentorship and knowledge sharing.

• Core Competencies
  Systems thinking for scalable ecosystem design spanning multiple environments, analytical leadership translating business problems to infrastructure solutions, effective stakeholder management across project teams and vendors, and self-driven ownership committed toleveragingtechnology for public good.

Technical Leadership Expectations

• Engineer Resilient Platform Infrastructure at Scale
  Engineer resilient systems through deep understanding of infrastructure engineering and user behaviour. Tackle cross-cutting technical issues elegantly,establishhigh monitoring standards, and engineer systems with observability in mind to evaluate behaviour at scale.

• Lead Complex Platform Infrastructure Transformations
  Apply systems thinking to improve efficiency, repeatability, and scale. Evolve infrastructure practices based on feedback and failure mode observations. Lead design, implementation, and launch of platform infrastructure services across multiple teams, navigating technical and organisational complexity with sound judgement.

• Technical Leadership with Agency or WOG Impact
  Coordinate delivery across divisions ensuring alignment and quality. Proactively address potential failure points, collaborate with PMs/EMs at scale, and help unify organisational technical standards across teams.

Leadership Responsibilities

• Strategic Execution
  Support divisional strategic agenda and drive key projects. Independentlyidentifyprojects supporting strategicobjectives, provide direction with strong outcome measurement ability, and develop roadmaps for complex initiatives.

• Team Leadership
  Align team goals with departmentalobjectives, contribute to hiring standards, conduct regular 1:1s,providegrowth opportunities, and create productive environments by removing barriers and motivating teams.

• Cross-Team Collaboration
  Lead cross-functional collaboration across multiple teams, resolve stakeholder conflicts,facilitatesolutions to achieve strategic outcomes, and champion continuous improvement whilst building capability in areas of expertise.

• Mentorship
  Actively invest in peer and junior member growth through mentorship, sponsorship, and knowledge sharing. Mentor L3 and below officers beyond immediate team, measurably improving colleague capabilities.

What we are looking for

Experience & Education

• Bachelor's degree in Computer Science, Computer Engineering, or related technical discipline. 8–10 years in Infrastructure Engineering, DevOps, or SRE with proven AWS/GCC and enterprise COTS experience.

Technical Skills

• Infrastructure Orchestration: AWS API Gateway mastery including secure endpoints, rate limiting, and traffic routing
• COTS Management: Commercial software installation and operationalisation in cloud environments
• Infrastructure as Code: Expert Terraformproficiencyfor GCC-side ecosystem
• Cloud & GCC: Deep AWS services (EKS, Lambda, RDS, IAM) and GCC landing zoneexpertise
• Hybrid Integration: Secure connectivity patterns (VPNs,PrivateLink) and API-first architectures

Please note that this will be a 2-year fixed term contract.