Senior Network Architect for Secure AFC Infra

Land Transport Authority (LTA); Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

Land Transport Authority (LTA) in Singapore is seeking a Senior/Executive Engineer (Infrastructure - Network Engineer) to design, implement and support the network infrastructure behind Singapore’s AFC system. You will work on public-facing rail and bus ticketing infrastructure, taking solutions from design through installation, testing, commissioning and ongoing improvement.

Experience with Linux, Windows or AIX, cloud environments (AWS/Azure), backup solutions and cybersecurity is an added

Qualifications

• 3+ years of experience in designing and implementing IT/OT networks
• TCP/IP, HTTP/S, FTPS and SFTP knowledge; OSI model applied to enterprise design
• IP addressing, CIDR, subnets, firewalls, routers and cloud/hybrid design
• Security and compliance: network security, IAM, data protection, encryption, vulnerability management, threat detection and response
• Ability to work independently as well as a team player
• Familiarity with Singapore Government Cloud on AWS and DevSecOps/CI/CD concepts
• Hands-on experience with DevSecOps, containerisation, serverless systems or data pipelines

Responsibilities

• Design practical, secure and resilient AFC networks covering LAN, WAN, WLAN, fibre and connectivity across on-premises, datacentre and cloud environments
• Turn project and operational needs into clear network designs, equipment specs, IP plans, security controls and implementation or rollback plans
• 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 with minimal disruption
• Monitor network and system health, investigate alerts, troubleshoot faults and implement fixes
• Implement and maintain essential security controls including firewalls, network access control and endpoint protection
• Maintain backups of critical configurations and data, test restoration and recovery
• Keep network diagrams, configuration records and procedures accurate and up-to-date
• Collaborate with project teams, system engineers, cybersecurity specialists, operators, vendors and service providers
• Look for ways to automate routine work and improve reliability, security and maintainability
• Support planned cutovers, maintenance and onsite incident recovery outside normal hours

Education

CCNA certification

Engineering, Computer Science, Information Systems background

3+ years IT/OT network design experience

Tools

TCP/IP

HTTP/S

FTPS

SFTP

MPLS

Cloud networking (AWS/Azure)

Job description

Land Transport Authority (LTA) in Singapore is seeking a Senior/Executive Engineer (Infrastructure - Network Engineer) to design, implement and support the network infrastructure behind Singapore’s AFC system. You will work on public-facing rail and bus ticketing infrastructure, taking solutions from design through installation, testing, commissioning and ongoing improvement.

Experience with Linux, Windows or AIX, cloud environments (AWS/Azure), backup solutions and cybersecurity is an added