[LTA-DPO] PRP / SENIOR / EXEC ENGINEER, SYSTEM ASSURANCE AND ARCHITECTURE
Core
Lead end-to-end solution design, architecture governance, and technical assessments for Singapore's Automatic Fare Collection (AFC) and payment systems to ensure reliability and security at a national scale.
Role type
Principal/Executive Solution Architect (Infrastructure & Security)
Builds
Secure, scalable, high-availability solutions for AFC and payment systems within the GCC2.0 AWS environment
Domain
Public transport infrastructure, payment systems, cloud services, multi-vendor integrations
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Solution architecture, systems analysis/design, complex enterprise IT infrastructure, network protocols (TCP/IP, HTTP/S, FTPS, SFTP), OSI model, enterprise integration patterns (APIs, webhooks, WebSockets, message queues, MQTT, pub/sub), data serialization (JSON, binary), network infrastructure (IP addressing, CIDR, subnets, firewalls, routers, MPLS), cloud and hybrid environment design
Preferred skills
AWS certifications, Automatic Fare Collection (AFC) systems, open-loop payment architecture, financial-grade transaction systems, security architecture (secure data flows, tokenisation, encryption), DevSecOps, CI/CD, containerisation (ECS, EKS), serverless architecture, data streaming pipelines, government and industry compliance standards (IM8, PCI-DSS), GCC AWS governance
Technologies
AWS, GCC2.0, MQ, MQTT, REST APIs, WebSockets, ECS, EKS
Responsibilities
Architect secure, scalable, and high-availability solutions for AFC and payment systems; Design and govern end-to-end system integration architectures across distributed, multi-vendor environments; Lead security architecture design to ensure compliance with Govtech's IM8 and security requirements; Lead network infrastructure design, including planning and governance of network topology, connectivity, and security controls; Produce and maintain system architecture and networking infrastructure diagrams, API and interface specifications, and integration designs; Translate business and system requirements into high-level and detailed technical specifications, interface designs, and integration patterns
Seniority
Principal/Executive, hands-on IC with strategic oversight
