System Engineer – AI-Driven Networking & Cloud Infra

Singapore Telecommunications Limited; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Singtel is building an AI-first telco for the future, connecting people and enterprises through trusted networks and AI-enabled services. You will design and manage enterprise network architectures, enable third-party integrations, and secure connectivity across data centres and public clouds.

Join a team delivering scalable AI, 5G+, cloud, and cybersecurity solutions, with a focus on reliable, resilient digital infrastructure and impactful work worldwide.

Qualifications

• Bachelor’s degree in computer science or equivalent.
• 5–10 years of experience in network infrastructure engineering, platform engineering, or systems engineering.
• Experience supporting mission-critical enterprise network infrastructure.
• API based System Integration experience.
• Experience in using AI tools such as Claude, Cursor, Codex to develop production grade applications.
• Possess CCNA or equivalent.
• Experience in AI training and GPU infrastructure setup.

Responsibilities

• Design and manage enterprise network architectures for on-premises and hybrid environments.
• Manage integration of 3rd party applications with external/internal stakeholders.
• Configure and manage Layer 2/Layer 3 networks, VLANs, VRFs, Routing, NAT, Firewall, VPN, Load Balancers.
• Design secure connectivity between Data Centres, Public Cloud, Kubernetes clusters, and enterprise apps.
• Plan IP addressing strategy and network segmentation.
• Troubleshoot complex network issues.
• Maintain network documentation and topology diagrams.
• System integration, SAML/SSO integration, architecture, monitoring, and cybersecurity review.

Skills

API-based system integration

Enterprise network infrastructure

SAML/SSO integration

AI tool experience

GPU infrastructure setup

Education

Bachelor’s degree in computer science or equivalent

CCNA or equivalent

Tools

Claude

Cursor

Codex

Job description

Singtel is building an AI-first telco for the future, connecting people and enterprises through trusted networks and AI-enabled services. You will design and manage enterprise network architectures, enable third-party integrations, and secure connectivity across data centres and public clouds.

Join a team delivering scalable AI, 5G+, cloud, and cybersecurity solutions, with a focus on reliable, resilient digital infrastructure and impactful work worldwide.