Senior Cloud Infra Engineer: NFVI, CNIS & 5G Systems

Ericsson GmbH; Singapore; On-site; SGD 220,000 - 320,000; Full time

Job summary

Ericsson Singapore seeks a Cloud Infra Support Engineer to ensure stable NFVI/CNIS cloud infrastructure for 5G workloads. You will operate production, pre-production, and lab environments, manage incidents, and drive improvements to reliability and performance.

You should have 10+ years in cloud infrastructure, hands-on Kubernetes, CNIS/NFVI deployments, and automation with Ansible and Terraform. Collaboration with multiple teams and mentoring junior engineers are expected.

Qualifications

• Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent practical experience.

Responsibilities

• 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.
• 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.

Skills

Cloud infrastructure

Incident management

Problem management

Automation

Kubernetes

Python scripting

BGP/EVPN

NFVI/CNIS

Communication

Education

Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent

Tools

Ansible

Terraform

Python

Terraform

Prometheus

Grafana

ELK

VMware/OpenStack/KVM

Job description

Ericsson Singapore seeks a Cloud Infra Support Engineer to ensure stable NFVI/CNIS cloud infrastructure for 5G workloads. You will operate production, pre-production, and lab environments, manage incidents, and drive improvements to reliability and performance.

You should have 10+ years in cloud infrastructure, hands-on Kubernetes, CNIS/NFVI deployments, and automation with Ansible and Terraform. Collaboration with multiple teams and mentoring junior engineers are expected.