System Engineer

Singtel Group; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Singtel is seeking an experienced Enterprise Network Architect/Engineer to design and manage complex network infrastructures across on-premises and hybrid cloud environments. You will oversee 3rd party integrations, configure advanced network features, and ensure secure connectivity to data centers, public cloud, and Kubernetes clusters.

The role emphasizes API-based integrations, AI tooling, and GPU-enabled infrastructure.

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 manager enterprise network architectures for on-premises and hybrid cloud environments and integration architectures with partners/vendors.
• Manage the integration of 3rd party applications by working with providers to align interfaces and requirements.
• Configure and manage Layer 2/Layer 3 networks, VLANs, VRFs, Routing (BGP, OSPF, Static Routing), NAT, Firewall Policies, 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 of software components, monitoring of microservices and API gateway platform, Cyber security review and application monitoring.

Skills

Experience in network infrastructure

API-based system integration

AI tools (Claude, Cursor, Codex) usage

CCNA or equivalent

AI training & GPU infra setup

Experience in mission-critical infra

Education

Bachelor’s degree in computer science or equivalent

Job description

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Singtel is where Technology meets Purpose.

We're building an AI-first telco for the future—connecting people, businesses and communities through trusted networks, intelligent digital services and next-generation technology.

From transforming everyday experiences in mobile, broadband, entertainment and lifestyle services to enabling enterprises with AI, 5G+, cloud, cybersecurity, data centres and digital platforms, we create the technology that powers how millions live, work and connect.

At Singtel, your work creates real impact. You'll solve meaningful challenges, shape critical digital infrastructure and help build secure, resilient and AI-enabled solutions that serve businesses, digital ecosystems and communities across the globe.

This is where BIG Possibilities become reality. Whether you're engineering intelligent networks, advancing sovereign AI cloud platforms, strengthening cybersecurity, designing seamless customer experiences or driving sustainable innovation, you'll be part of teams shaping the future of technology.

Backed by decades of expertise and driven by a culture of continuous learning and innovation, Singtel offers the scale, opportunities and support to help you grow your career while making a difference where it matters most.

How You will Make An Impact:

• Design and manager enterprise network architectures for on-premises and hybrid cloud environments and integration architectures with partners/vendors.
• Manage the integration of 3rd part applications by working directly with the applications providers to ensure the integration interfaces, specifications and requirements are aligned externally and internally within relevant stakeholder groups and supporting systems.
• Configure and manage Layer 2 / Layer 3 networks, VLANs, VRFs, Routing (BGP, OSPF, Static Routing), NAT, Firewall Policies, VPN, Load Balancers.
• Design secure connectivity between: Data Centres, Public Cloud (AWS/Azure/GCP), Kubernetes clusters, Enterprise applications.
• Plan IP addressing strategy and network segmentation.
• Troubleshoot complex network issues.
• Maintain network documentation and topology diagrams.
• System Integration, SAML/SSO Integration, Architecture of software components, monitoring of microservices and API gateway platform, Cyber security review and application monitoring.

Skills for Success:

• 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.
• PossessCCNA or equivalent.
• Experience in AI training and GPU infrastructure setup.

Are you ready to say hello to BIG Possibilities?

Join Singtel to shape what's next and accelerate your career through meaningful work, continuous learning, and real impact.