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The L3 OpenStack Administrator is responsible for ensuring reliable and secure cloud operations by managing advanced troubleshooting, performance tuning, upgrades, and incident resolution across all OpenStack services. The role focuses on maintaining high availability, optimizing infrastructure components, automating day2 operations, and supporting complex tenant and platform needs in a largescale OpenStack environment. The ideal candidate should have deep knowledge of RHEL, CentOS, Ubuntu, SUSE, Oracle Linux, along with cloud Linux workloads (AWS, GCP, Azure, OCI), containerization (Docker, Kubernetes, OpenShift), and automation (Ansible, Terraform, Python, Bash). Major Duties & Responsibilities: Design and implement highly available and scalable architecture using Red Hat OpenStack Platform. Manage and operate the production OpenStack environment across compute, storage, and networking services. Lead deployment, configuration, and lifecycle management of OpenStack clusters (including major/minor upgrades and patching). Experience in Cisco ESC (Elastic Services Controller) for endtoend VNF lifecycle management including deployment, monitoring, scaling, healing, and termination on OpenStack environments. Perform capacity planning for compute, storage, and networking resources Act as L3 escalation point for critical production incidents (P1/P2) Conduct deep troubleshooting of Nova, Neutron, Cinder, Glance, and Keystone services Diagnose and resolve complex issues related to RabbitMQ, MariaDB Galera, HAProxy, and Pacemaker clusters Optimize performance (CPU pinning, NUMA tuning, hugepages, IO/network optimization) on Red Hat Enterprise Linux Manage and troubleshoot storage backends including Red Hat Ceph Storage, iSCSI, and NFS Troubleshoot advanced networking issues (OVS/OVN, VLAN, VXLAN, LACP, bonding) Implement automation using Ansible and scripting (Bash/Python) Ensure high availability, disaster recovery readiness, and backup strategies Perform root cause analysis (RCA) and provide preventive action plans Define security hardening standards and implement RBAC policies Review and improve operational SOPs and documentation Experience in virtualization platform KVM, proxmox, VM Ware etc. Mentor L1/L2 engineers and lead technical discussions during major incident bridges Design and implement highly available and scalable architecture using Red Hat OpenStack Platform Lead deployment, configuration, and lifecycle management of OpenStack clusters (including major/minor upgrades and patching) Perform capacity planning for compute, storage, and networking resources Act as L3 escalation point for critical production incidents (P1/P2) Conduct deep troubleshooting of Nova, Neutron, Cinder, Glance, and Keystone services . Diagnose and resolve complex issues related to RabbitMQ, MariaDB Galera, HAProxy, and Pacemaker clusters Optimize performance (CPU pinning, NUMA tuning, hugepages, IO/network optimization) on Red Hat Enterprise Linux Manage and troubleshoot storage backends including Red Hat Ceph Storage, iSCSI, and NFS Troubleshoot advanced networking issues (OVS/OVN, VLAN, VXLAN, LACP, bonding) Implement automation using Ansible and scripting (Bash/Python) Ensure high availability, disaster recovery readiness, and backup strategies Perform root cause analysis (RCA) and provide preventive action plans Define security hardening standards and implement RBAC policies Review and improve operational SOPs and documentation . Mentor L1/L2 engineers and lead technical discussions during major incident bridges
Tata Communications is a digital ecosystem enabler that powers today’s fast-growing digital economy. We enable the digital transformation of enterprises globally, including 300 of the Fortune 500. We carry around 30% of the world’s internet routes and connects businesses to 60% of the world’s cloud giants.
We have been a part of the rich heritage of the internet in India. Over the last 25 years, enterprise-enabled services have been essential to the adoption of digital services in the country. Connectivity is an essential fabric of sustenance for the economy. We are committed to enabling Industry leaders in this New World of Communications™, with our unique promise of delivering secure connected digital experiences.
In 2020, we announced the launch of ‘Secure Connected Digital Experience’ (SCDx), a proposition intended to meet this growing, worldwide demand for new ways of operating, which includes far higher levels of working from home, rising security risks, a shift to digital commerce, and more contactless experiences. It will help companies currently relying on short-term fixes by providing holistic, secure, enterprise-level digital solutions that address current challenges and are fit for the long term.
Job ID: 143695681
