Senior Infra Systems Expert

About this opportunity:

At Ericsson, you can be a game changer! Because working here isn t just a deal. It s a big deal. This means that you get to leverage our 140+ years of experience & the expertise of more than 95,000 diverse colleagues worldwide. As part of our team, you will help solve some of society s most complicated challenges, enabling you to be the person that did that. We ve never had a greater opportunity to inspire change; setting the bar for technology to be inclusive & accessible; empowering a hard-working, sustainable, & connected world.

What you will do

End-to-end administration and operations of CNIS platforms including Kubernetes, container runtimes, and cloud-native infrastructure components. Manage and optimize Cloud Container Distribution (CCD), covering provisioning, upgrades, backup/restore, lifecycle management, and disaster recovery readiness. Perform CCD health checks, configuration drift analysis, capacity tracking, and environment validation across clusters. Work closely with app and platform teams to onboard workloads and provide CCD-level support. Monitor system performance and availability using tools like Prometheus, Grafana, and other tools Ensure compliance with security, governance, and operational policies. Participate in and lead DR planning, execution, and RCA of major incidents. Maintain detailed runbooks, MOPs, and CNIS documentation for operational readiness. Monitor SDI health and performance, resolve bottlenecks, and ensure seamless integration with CNIS layers. Good troubleshooting experience with CNIS components Expertise in Red Hat Enterprise Linux (RHEL) system administration and troubleshooting. Hardware troubleshooting experience on HP ProLiant, Dell PowerEdge servers. Patch management, firmware upgrades, and OS-level tuning Strong hands-on experience with Juniper and Extreme Networks switches. Switch boot process, firmware upgrades, backup/restore, Border leaf switch management and troubleshooting Familiarity with traffic filtering, isolation, and multi-tenant CNIS network architecture. Configuration of VLANs, trunking, port profiles (access/trunk), and ACLs Strong knowledge on CEPH Storage administration and troubleshooting

The skills you bring:

10+ years of Experience is supporting & managing business critical operations. In depth knowledge & working experience on Linux Administration. In depth knowledge & working experience on Dockers, Kubernetes & any other cloud platform. Troubleshooting & Debugging skills to find issues. Understanding of SDN and integration with container networking layers (e.g., Calico). Familiarity with traffic filtering, isolation, and multi-tenant CNIS network architecture. Switch boot process, firmware upgrades, backup/restore, Border leaf switch management and troubleshooting. Configuration of VLANs,trucking, port profiles (access/trunk), and ACLs Performance analysis, component replacement, switch stacking, and chassis management.

Certifications Preferred:

CKA / CKAD / CKS Kubernetes certifications Red Hat Certified System Administrator (RHCSA/RHCE) Networking certifications (Juniper/Extreme/SDN) ITIL Foundation (preferred in process-driven environments)