Job Description

[What the role is]

Senior/ Executive Engineer (Solution Architect - Cloud System and Ticketing Equipment)

[What you will be working on]

We are seeking an experienced and committed Solution Architect to play a key role in the modernisation of Singapore's Automatic Fare Collection (AFC) system to deliver seamless, secure, and scalable public transport experience.

As part of the System Architecture and Assurance Division, you will drive end-to-end solution design, architecture governance, and technical assessments across complex integrations involving payment systems, backend processing, cloud services, and system security. You will be instrumental in driving design best practices and ensuring system reliability at a national scale.

What You Will Do

Analyse business and system requirements and translate them into high-level and detailed technical specifications and interface designs
Performtechnical impact analysisfor change requests and system enhancements, ensuring minimal disruption to mission-critical AFC operations
Architect and design secure, scalable, and high-availability system solutions for AFC and payment systems, including those usingEMV, open-loop standards, account-based ticketing and card-based ticketing models
Lead cloud solutioning and migration strategies, ensuring alignment with LTA's cloud adoption roadmap
Collaborate closely with internal stakeholders (project teams, software development teams, operations) and external partners (vendors, financial institutions) to develop robust and future-ready solutions
Produce and maintain architecture diagrams, API/interface specifications, integration patterns, and designs for complex multi-vendor and multi-system environments
Contribute to architecture governance, cloud best practices, security controls, and system resiliency planning
Conduct solution walkthroughs, architecture reviews, and technical presentations for internal and external stakeholders.

[What we are looking for]

Knowledge in Engineering, Computer Science, Information Systems, or related field
At least 3 years of experience in solution architecture, systems analysis/design, or complex application development
Proven experience designing or supporting cloud-based systems
Familiarity with e-payment technologies, particularly in the context of fare collection, transaction clearing, and EMV-based systems
Strong analytical and communication skills, system design analysis and ability to resolve complex multi-stakeholder issues
Experience with stakeholder management and working in complex, multi-vendor environments

Bonus Skills:

Cloud certifications (e.g. AWS Certified Solutions Architect - Associate/Professional) are strongly preferred
Strong knowledge of security architecture, including secure data flows, tokenisation, encryption, and compliance standards
Hands-on exposure to DevSecOps, CI/CD, containerisation (e.g., ECS), serverless architecture, or data streaming pipelines
Curious and self-motivated to stay updated with new technologies such as 5G, AI/ML, IoT, or real-time analytics.

As part of the shortlisting process for the role, you may be required to complete a medical declaration and / or undergo further assessment.