Cloud Infra Support Engineer

Ericsson; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

Ericsson is seeking a senior Cloud Infra Support Engineer in Singapore to ensure stable, secure, and resilient NFVI/CNIS cloud infrastructure hosting 5G and IMS workloads. The role blends hands-on operations with design and improvement of cloud platforms, guiding customers and internal teams on best practices and driving infrastructure changes for performance and resiliency.

You will operate CNIS/Kubernetes clusters, lead incidents end-to-end, contribute to HLD/LLD, and develop automation using

Qualifications

• Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent practical experience.
• 10+ years of hands-on cloud infrastructure and network operations experience.

Responsibilities

• Operate and support Ericsson NFVI and CNIS platforms across production, pre-production, and lab environments for high availability of 5G/IMS and CNFs.
• Provide deep technical support for CNIS data fabric, underlay/overlay routing, SDN/SDI integration, CEE and Kubernetes clusters, and storage subsystems.
• Lead incident and problem management end-to-end, with RCAs and runbook updates to improve infrastructure.
• Contribute to high-level and low-level design documents for NFVI and CNIS deployments, upgrades, and migrations.
• Optimize performance and resiliency by analyzing capacity, traffic patterns, and failure scenarios; tune routing and placement.

Skills

Cloud infrastructure

Network operations

Kubernetes

Python

Ansible

Terraform

Monitoring

Incident management

Education

Bachelor's or Master's in CS/Telecom/Engineering

Tools

Kubernetes

VMware/OpenStack/KVM

Prometheus/Grafana/ELK

Job description

About this opportunity

The Cloud Infra Support Engineer ensures the stable, secure, and resilient operation of Ericsson NFVI and CNIS-based cloud infrastructure, including CEE, SDN, SDI, data fabric, storage, and Kubernetes. This senior technical role combines hands-on operations (incident, problem, and change management) with the design, implementation, and continuous improvement of the cloud and network platforms that host 5G and IMS workloads. You will serve as a subject matter expert for CNIS and NFVI, guiding customers and internal teams on best practices, resolving complex issues, and driving infrastructure changes that improve performance, resiliency, and operational efficiency.

Join our Team

About this opportunity

The Cloud Infra Support Engineer ensures the stable, secure, and resilient operation of Ericsson NFVI and CNIS-based cloud infrastructure, including CEE, SDN, SDI, data fabric, storage, and Kubernetes. This senior technical role combines hands-on operations (incident, problem, and change management) with the design, implementation, and continuous improvement of the cloud and network platforms that host 5G and IMS workloads. You will serve as a subject matter expert for CNIS and NFVI, guiding customers and internal teams on best practices, resolving complex issues, and driving infrastructure changes that improve performance, resiliency, and operational efficiency.

What you will do

• Operate and support Ericsson NFVI and CNIS platforms across production, pre-production, and lab environments, ensuring high availability for 5G/IMS and other VNFs/CNFs.
• Provide deep technical support for CNIS data fabric (compact and scalable), Anycast Gateway, underlay/overlay routing (BGP, EVPN/VXLAN, ECMP), SDN/SDI integration, CEE and Kubernetes clusters, and storage subsystems (block, object, and shared file).
• Lead incident and problem management: own complex incidents end-to-end from triage to root cause analysis and permanent fix, and translate post-incident reviews into infrastructure improvements and runbook updates.
• Contribute to HLD/LLD for NFVI and CNIS deployments, upgrades, expansions, and migrations, ensuring alignment with Ericsson reference architectures.
• Optimise performance and resiliency by analysing capacity, traffic patterns, and failure scenarios, and by implementing routing, fabric, storage, and workload placement tuning against SLAs.
• Plan and execute software upgrades, patching, and hardware refresh, coordinating with product units and customer teams on compatibility and regression testing.
• Develop and maintain automation (Ansible, Python, Terraform) and reusable runbooks for deployment, configuration, validation, and troubleshooting.
• Configure and maintain monitoring, logging, and alerting to proactively detect and resolve issues before they impact services.
• Collaborate with CU, PDU, design, and customer operations teams, providing clear communication to technical and non-technical stakeholders, and mentor junior engineers.

The skills you bring

• Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent practical experience.
• 10+ years of hands-on experience in cloud infrastructure and network operations, preferably in telecom or large-scale distributed environments.
• Strong experience with Ericsson NFVI and/or CNIS deployments in live customer or large internal networks.
• Proven track record operating data center fabrics (Clos, spine/leaf, Anycast Gateway), production Kubernetes/CEE environments hosting CNFs, and telco storage platforms.
• IP routing (IPv4/IPv6), BGP, EVPN/VXLAN, ECMP, and Anycast Gateway concepts.
• Data center switches and routers, including multi-VRF, LAG/MC-LAG, and high-availability designs.
• Virtualization (VMware, OpenStack, KVM) and SDN/SDI integration with NFVI/CNIS.
• Kubernetes cluster operations, CNF deployment patterns, ECFE, and storage integration.
• Storage architectures (SAN, NAS, SDS) and IO path troubleshooting.
• Scripting (Python, Bash) and automation (Ansible, Terraform).
• Observability stacks (Prometheus, Grafana, ELK, or similar).

Why join Ericsson?

At Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what´s possible. To build solutions never seen before to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.

Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.

Primary country and city

Singapore (SG) || Singapore