Sr Administrator (Support & Operations)
India
Job Description
Sr Administrator (Support & Operations)
Lucknow, Uttar Pradesh

Job Summary

Senior Linux & OpenShift Infrastructure, Capacity and Performance Engineer Manage and support large-scale enterprise Linux and OpenShift environments across Production, DR, UAT, and Development environments. • Administer RHEL 5/67/8/9/10 servers and other (Rocky, ubuntu, CentOS Etc) including installation, configuration, troubleshooting, performance tuning, and lifecycle management. • Manage Red Hat OpenShift clusters including cluster administration, upgrades, patching, capacity planning, security, and operational support. • Perform Linux server provisioning, decommissioning, migration, and modernization activities. • Support VMware-to-OpenShift migration initiatives and containerization programs. • Administer Red Hat Satellite infrastructure including content views, lifecycle environments, repositories, activation keys, and patch management. • Plan and execute operating system upgrades, server refreshes, application migrations, and infrastructure modernization projects. • Monitor and manage platform availability, reliability, and operational health across Linux and OpenShift platforms. • Perform advanced troubleshooting of Linux, Kubernetes, OpenShift, storage, networking, and application-related issues. • Manage OpenShift worker nodes, control plane nodes, infrastructure nodes, namespaces, projects, operators, certificates, and cluster resources. • Implement and manage OpenShift RBAC, security policies, authentication, and authorization controls. • Perform capacity planning and forecasting for CPU, memory, storage, network, and cluster resources. • Analyze performance trends and provide recommendations for scaling, optimization, and resource utilization improvements. • Develop and maintain operational dashboards, health reports, and monthly capacity reports. • Manage Linux patching, vulnerability remediation, security compliance, and hardening activities. • Coordinate with application owners, database teams, network teams, storage teams, security teams, and vendors for incident and change activities. • Support Oracle, WebLogic, middleware, and container-based application workloads hosted on Linux and OpenShift platforms. • Administer and troubleshoot storage technologies including SAN, NFS, LVM, XFS, Persistent Volumes, Storage Classes, ODF, and Ceph. • Manage OpenShift backup and recovery solutions including Velero and OADP. • Participate in Disaster Recovery planning, testing, failover validation, and recovery activities. • Develop, maintain, and automate operational processes using Ansible, Shell Scripting, Python, and Terraform. • Create and maintain SOPs, Runbooks, KEDB articles, operational documentation, and technical standards. • Perform root cause analysis (RCA) for major incidents and provide corrective and preventive actions. • Support 24x7 production environments and participate in on-call and major incident bridges when required. • Manage vulnerability remediation activities identified through Qualys, Nessus, Tenable, or similar security tools. • Support GitOps, CI/CD, ArgoCD, Jenkins, Helm, Operators, and container platform automation initiatives. • Monitor platform health using Prometheus, Grafana, Alert Manager, Elasticsearch, Kibana, Azure Monitor, Zabbix, SCOM, or equivalent monitoring solutions. • Administer user access, LDAP/AD integration, SSSD, PAM, SSH, authentication, and privileged access management. • Ensure platform compliance with security, audit, governance, and regulatory requirements. • Review infrastructure growth trends and provide strategic recommendations for platform expansion and modernization. Required Skills • Red Hat Enterprise Linux (RHEL 7/8/9/10) • Red Hat OpenShift 4.x • Kubernetes Administration • Red Hat Satellite • Ansible Automation Platform • Shell Scripting • Python • Terraform • GitOps • ArgoCD • Jenkins • Helm • Podman • CRI-O • LDAP/Active Directory Integration • Storage Administration (SAN, NFS, LVM, XFS) • VMware • Oracle Linux/Oracle Workloads • WebLogic Administration

Key Responsibilities

Senior Linux & OpenShift Infrastructure, Capacity and Performance Engineer Manage and support large-scale enterprise Linux and OpenShift environments across Production, DR, UAT, and Development environments. • Administer RHEL 5/67/8/9/10 servers and other (Rocky, ubuntu, CentOS Etc) including installation, configuration, troubleshooting, performance tuning, and lifecycle management. • Manage Red Hat OpenShift clusters including cluster administration, upgrades, patching, capacity planning, security, and operational support. • Perform Linux server provisioning, decommissioning, migration, and modernization activities. • Support VMware-to-OpenShift migration initiatives and containerization programs. • Administer Red Hat Satellite infrastructure including content views, lifecycle environments, repositories, activation keys, and patch management. • Plan and execute operating system upgrades, server refreshes, application migrations, and infrastructure modernization projects. • Monitor and manage platform availability, reliability, and operational health across Linux and OpenShift platforms. • Perform advanced troubleshooting of Linux, Kubernetes, OpenShift, storage, networking, and application-related issues. • Manage OpenShift worker nodes, control plane nodes, infrastructure nodes, namespaces, projects, operators, certificates, and cluster resources. • Implement and manage OpenShift RBAC, security policies, authentication, and authorization controls. • Perform capacity planning and forecasting for CPU, memory, storage, network, and cluster resources. • Analyze performance trends and provide recommendations for scaling, optimization, and resource utilization improvements. • Develop and maintain operational dashboards, health reports, and monthly capacity reports. • Manage Linux patching, vulnerability remediation, security compliance, and hardening activities. • Coordinate with application owners, database teams, network teams, storage teams, security teams, and vendors for incident and change activities. • Support Oracle, WebLogic, middleware, and container-based application workloads hosted on Linux and OpenShift platforms. • Administer and troubleshoot storage technologies including SAN, NFS, LVM, XFS, Persistent Volumes, Storage Classes, ODF, and Ceph. • Manage OpenShift backup and recovery solutions including Velero and OADP. • Participate in Disaster Recovery planning, testing, failover validation, and recovery activities. • Develop, maintain, and automate operational processes using Ansible, Shell Scripting, Python, and Terraform. • Create and maintain SOPs, Runbooks, KEDB articles, operational documentation, and technical standards. • Perform root cause analysis (RCA) for major incidents and provide corrective and preventive actions. • Support 24x7 production environments and participate in on-call and major incident bridges when required. • Manage vulnerability remediation activities identified through Qualys, Nessus, Tenable, or similar security tools. • Support GitOps, CI/CD, ArgoCD, Jenkins, Helm, Operators, and container platform automation initiatives. • Monitor platform health using Prometheus, Grafana, Alert Manager, Elasticsearch, Kibana, Azure Monitor, Zabbix, SCOM, or equivalent monitoring solutions. • Administer user access, LDAP/AD integration, SSSD, PAM, SSH, authentication, and privileged access management. • Ensure platform compliance with security, audit, governance, and regulatory requirements. • Review infrastructure growth trends and provide strategic recommendations for platform expansion and modernization. Required Skills • Red Hat Enterprise Linux (RHEL 7/8/9/10) • Red Hat OpenShift 4.x • Kubernetes Administration • Red Hat Satellite • Ansible Automation Platform • Shell Scripting • Python • Terraform • GitOps • ArgoCD • Jenkins • Helm • Podman • CRI-O • LDAP/Active Directory Integration • Storage Administration (SAN, NFS, LVM, XFS) • VMware • Oracle Linux/Oracle Workloads • WebLogic Administration

Skill Requirements

Senior Linux & OpenShift Infrastructure, Capacity and Performance Engineer Manage and support large-scale enterprise Linux and OpenShift environments across Production, DR, UAT, and Development environments. • Administer RHEL 5/67/8/9/10 servers and other (Rocky, ubuntu, CentOS Etc) including installation, configuration, troubleshooting, performance tuning, and lifecycle management. • Manage Red Hat OpenShift clusters including cluster administration, upgrades, patching, capacity planning, security, and operational support. • Perform Linux server provisioning, decommissioning, migration, and modernization activities. • Support VMware-to-OpenShift migration initiatives and containerization programs. • Administer Red Hat Satellite infrastructure including content views, lifecycle environments, repositories, activation keys, and patch management. • Plan and execute operating system upgrades, server refreshes, application migrations, and infrastructure modernization projects. • Monitor and manage platform availability, reliability, and operational health across Linux and OpenShift platforms. • Perform advanced troubleshooting of Linux, Kubernetes, OpenShift, storage, networking, and application-related issues. • Manage OpenShift worker nodes, control plane nodes, infrastructure nodes, namespaces, projects, operators, certificates, and cluster resources. • Implement and manage OpenShift RBAC, security policies, authentication, and authorization controls. • Perform capacity planning and forecasting for CPU, memory, storage, network, and cluster resources. • Analyze performance trends and provide recommendations for scaling, optimization, and resource utilization improvements. • Develop and maintain operational dashboards, health reports, and monthly capacity reports. • Manage Linux patching, vulnerability remediation, security compliance, and hardening activities. • Coordinate with application owners, database teams, network teams, storage teams, security teams, and vendors for incident and change activities. • Support Oracle, WebLogic, middleware, and container-based application workloads hosted on Linux and OpenShift platforms. • Administer and troubleshoot storage technologies including SAN, NFS, LVM, XFS, Persistent Volumes, Storage Classes, ODF, and Ceph. • Manage OpenShift backup and recovery solutions including Velero and OADP. • Participate in Disaster Recovery planning, testing, failover validation, and recovery activities. • Develop, maintain, and automate operational processes using Ansible, Shell Scripting, Python, and Terraform. • Create and maintain SOPs, Runbooks, KEDB articles, operational documentation, and technical standards. • Perform root cause analysis (RCA) for major incidents and provide corrective and preventive actions. • Support 24x7 production environments and participate in on-call and major incident bridges when required. • Manage vulnerability remediation activities identified through Qualys, Nessus, Tenable, or similar security tools. • Support GitOps, CI/CD, ArgoCD, Jenkins, Helm, Operators, and container platform automation initiatives. • Monitor platform health using Prometheus, Grafana, Alert Manager, Elasticsearch, Kibana, Azure Monitor, Zabbix, SCOM, or equivalent monitoring solutions. • Administer user access, LDAP/AD integration, SSSD, PAM, SSH, authentication, and privileged access management. • Ensure platform compliance with security, audit, governance, and regulatory requirements. • Review infrastructure growth trends and provide strategic recommendations for platform expansion and modernization. Required Skills • Red Hat Enterprise Linux (RHEL 7/8/9/10) • Red Hat OpenShift 4.x • Kubernetes Administration • Red Hat Satellite • Ansible Automation Platform • Shell Scripting • Python • Terraform • GitOps • ArgoCD • Jenkins • Helm • Podman • CRI-O • LDAP/Active Directory Integration • Storage Administration (SAN, NFS, LVM, XFS) • VMware • Oracle Linux/Oracle Workloads • WebLogic Administration

Other Requirements

Senior Linux & OpenShift Infrastructure, Capacity and Performance Engineer Manage and support large-scale enterprise Linux and OpenShift environments across Production, DR, UAT, and Development environments. • Administer RHEL 5/67/8/9/10 servers and other (Rocky, ubuntu, CentOS Etc) including installation, configuration, troubleshooting, performance tuning, and lifecycle management. • Manage Red Hat OpenShift clusters including cluster administration, upgrades, patching, capacity planning, security, and operational support. • Perform Linux server provisioning, decommissioning, migration, and modernization activities. • Support VMware-to-OpenShift migration initiatives and containerization programs. • Administer Red Hat Satellite infrastructure including content views, lifecycle environments, repositories, activation keys, and patch management. • Plan and execute operating system upgrades, server refreshes, application migrations, and infrastructure modernization projects. • Monitor and manage platform availability, reliability, and operational health across Linux and OpenShift platforms. • Perform advanced troubleshooting of Linux, Kubernetes, OpenShift, storage, networking, and application-related issues. • Manage OpenShift worker nodes, control plane nodes, infrastructure nodes, namespaces, projects, operators, certificates, and cluster resources. • Implement and manage OpenShift RBAC, security policies, authentication, and authorization controls. • Perform capacity planning and forecasting for CPU, memory, storage, network, and cluster resources. • Analyze performance trends and provide recommendations for scaling, optimization, and resource utilization improvements. • Develop and maintain operational dashboards, health reports, and monthly capacity reports. • Manage Linux patching, vulnerability remediation, security compliance, and hardening activities. • Coordinate with application owners, database teams, network teams, storage teams, security teams, and vendors for incident and change activities. • Support Oracle, WebLogic, middleware, and container-based application workloads hosted on Linux and OpenShift platforms. • Administer and troubleshoot storage technologies including SAN, NFS, LVM, XFS, Persistent Volumes, Storage Classes, ODF, and Ceph. • Manage OpenShift backup and recovery solutions including Velero and OADP. • Participate in Disaster Recovery planning, testing, failover validation, and recovery activities. • Develop, maintain, and automate operational processes using Ansible, Shell Scripting, Python, and Terraform. • Create and maintain SOPs, Runbooks, KEDB articles, operational documentation, and technical standards. • Perform root cause analysis (RCA) for major incidents and provide corrective and preventive actions. • Support 24x7 production environments and participate in on-call and major incident bridges when required. • Manage vulnerability remediation activities identified through Qualys, Nessus, Tenable, or similar security tools. • Support GitOps, CI/CD, ArgoCD, Jenkins, Helm, Operators, and container platform automation initiatives. • Monitor platform health using Prometheus, Grafana, Alert Manager, Elasticsearch, Kibana, Azure Monitor, Zabbix, SCOM, or equivalent monitoring solutions. • Administer user access, LDAP/AD integration, SSSD, PAM, SSH, authentication, and privileged access management. • Ensure platform compliance with security, audit, governance, and regulatory requirements. • Review infrastructure growth trends and provide strategic recommendations for platform expansion and modernization. Required Skills • Red Hat Enterprise Linux (RHEL 7/8/9/10) • Red Hat OpenShift 4.x • Kubernetes Administration • Red Hat Satellite • Ansible Automation Platform • Shell Scripting • Python • Terraform • GitOps • ArgoCD • Jenkins • Helm • Podman • CRI-O • LDAP/Active Directory Integration • Storage Administration (SAN, NFS, LVM, XFS) • VMware • Oracle Linux/Oracle Workloads • WebLogic Administration

Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.