[LTA-DPO] SNR / EXEC / ENGINEER, SYSTEM ARCHI & ASSURANCE (INFRA)
Core
Design, implement, and support the network infrastructure for Singapore's Automatic Fare Collection (AFC) system serving rail and bus ticketing services.
Role type
Senior/Executive Network Engineer (Infrastructure)
Builds
Public-facing rail and bus ticketing networks across on-premises, datacentre, and cloud environments
Domain
Public transport ticketing / Network Infrastructure
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Network design, IP planning, security controls, equipment installation, network troubleshooting, capacity planning, disaster recovery planning, automation scripting
Preferred skills
Linux, Windows, AIX, AWS, Azure, backup solutions, cybersecurity implementation, DevSecOps, CI/CD, containerisation
Technologies
TCP/IP, HTTP/S, FTPS, SFTP, OSI model, IP addressing, CIDR, subnets, firewalls, routers, MPLS, AWS, Azure, ECS, EKS
Responsibilities
Design practical, secure and resilient AFC networks covering LAN, WAN, WLAN, fibre and connectivity; Turn project and operational needs into clear network designs, equipment specifications, IP plans, security controls, configuration standards and implementation or rollback plans; Get hands-on with the work: install, configure, integrate and commission network equipment, servers and related infrastructure in test and live environments; Plan and carry out network changes, upgrades, migrations and technology refreshes; Monitor network and system health, capacity and performance; investigate alerts and incidents; troubleshoot faults using logs and diagnostic tools; and implement lasting fixes; Implement and maintain essential security controls, including firewalls, network access control, endpoint protection, secure access and network segmentation; Maintain backups of critical configurations and data, test restoration and recovery procedures, and support resilience and disaster-recovery exercises; Keep network diagrams, configuration records, installation and operating procedures, test results, incident findings and troubleshooting guides accurate and useful; Look for sensible ways to automate routine work, standardise configurations and improve the reliability, security and maintainability of the AFC network; Support planned cutovers, maintenance and onsite incident recovery outside normal office hours when required.