[LTA-DPO] SNR / EXEC / ENGINEER, SYSTEM ARCHI & ASSURANCE (INFRA)

Land Transport Authority; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Land Transport Authority in Singapore seeks a Senior/Executive Engineer (Infrastructure - Network Engineer) to design, implement and support the network infrastructure behind Singapore’s AFC system. You will design secure networks across on-premises, data centre and cloud, and work closely with project teams to deliver reliable, highly available ticketing services.

The role emphasizes hands-on installation, testing, commissioning and ongoing improvement, with knowledge of Linux/Windows/AIX,

Qualifications

• At least 3 years of experience in designing and implementing IT/OT networks.
• Certification in CCNA preferred.
• Knowledge of TCP/IP, HTTP/S, FTPS, SFTP and OSI model in enterprise design.
• Experience with security controls, network segmentation and incident response.

Responsibilities

• Design secure and resilient AFC networks across LAN, WAN, WLAN, fibre and cloud environments.
• Install, configure, integrate and commission network equipment in test and live environments.
• Plan and execute network changes, upgrades and migrations with minimal service disruption.
• Monitor network health and performance; investigate alerts and troubleshoot faults.

Skills

CCNA

TCP/IP

Network security

Firewall

Tools

Linux

Windows Server

AWS

Azure

Job description

What the role is:

Senior/ Executive Engineer (Infrastructure - Network Engineer)

What you will be working on:

We are seeking a passionate and experienced Network Engineer to design, implement and support the network infrastructure behind Singapore’s Automatic Fare Collection (AFC) system.

You will work on public-facing rail and bus ticketing infrastructure, taking solutions from design through installation, testing, commissioning and ongoing improvement. This role suits engineers who enjoy being close to the technology, solving real operational problems and building reliable systems that commuters depend on every day.

Experience with system platforms such as Linux, Windows or AIX, cloud environments such as AWS or Azure, backup solutions, and cybersecurity implementation will be an added advantage.

What You Will Do

• Design practical, secure and resilient AFC networks that support Singapore’s rail and bus ticketing services, covering LAN, WAN, WLAN, fibre and connectivity across on-premises, datacentre and cloud environments
• undefined
• 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, including patches, firmware and software updates, while keeping disruption to ticketing services to a minimum
• 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, in line with public-sector security requirements
• 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
• Work closely with project teams, system engineers, cybersecurity specialists, operators, vendors and service providers to deliver practical solutions and resolve issues
• undefined
• 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.

What we are looking for:

• Knowledge in Engineering, Computer Science, Information Systems, or related field
• At least 3 years of experience in designing and implementing IT/OT networks
• Certification in CCNA preferred
• Networks and Protocols — working knowledge of common network and communication protocols such as TCP/IP, HTTP/S, FTPS, and SFTP, and the OSI model as applied to enterprise system design
• Network Infrastructure — understanding of IP addressing, CIDR, subnets, firewalls, routers, MPLS, and availability zone design in cloud and hybrid environments.
• Security and Compliance — experience in network security, identity and access management, data protection, encryption, vulnerability management, and threat detection and response
• Ability to work independently as well as a team player

Bonus Skills:

• Familiarity with Singapore's Government Commercial Cloud on AWS, including its governance requirements and deployment constraints
• Hands-on experience on DevSecOps, CI/CD, containerisation (e.g. ECS, EKS), serverless system, or data streaming pipelines

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

About Land Transport Authority

The Land Transport Authority (LTA) is a statutory board under Ministry of Transport that spearheads land transport developments in Singapore. We are seeking dynamic, energetic, highly motivated, passionate and qualified professionals to join us.Many opportunities & challenges await those who are keen on an exciting career to realise our commitment to envision & implement an integrated transport system.