Job Purpose

nThe Linux & Kubernetes Administrator is responsible for the administration, maintenance, optimization, automation, and security of enterprise Linux platforms and containerized environments supporting mission-critical business applications. The role focuses on ensuring high availability, scalability, operational efficiency, and security compliance across cloud, on-premises and hybrid infrastructure environments leveraging Linux, Kubernetes, Docker, OpenShift, and cloud-native technologies

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nRoles & Responsibilities

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- Linux Infrastructure Administration
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nInstall, configure, administer, and support Red Hat Enterprise Linux (RHEL), Ubuntu, SUSE Linux, and other enterprise Linux distributions.

nManage system lifecycle activities, including provisioning, patching, upgrades, hardening, and decommissioning.

nMonitor system health, availability, resource utilization, and performance metrics.

nManage user administration, access controls, and privilege management.

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- Container Platform Administration
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nDeploy, administer, and support container platforms including Kubernetes, OpenShift, Docker Enterprise, Rancher, and container runtime environments.

nManage Kubernetes clusters across development, testing, and production environments.

nConfigure and maintain Namespaces, Pods, StatefulSets, Deployments, Services, Ingress Controllers, and Persistent Volumes.

nEnsure container platform availability, scalability, and performance.

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- Cloud-Native Platform Management
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nSupport hybrid and multi-cloud containerized workloads running on L & T Vyoma, private cloud & Sovereign cloud environments.

nImplement cloud-native operational best practices for containerized applications.

nManage container registries, image repositories, and artifact management solutions.





nSupport microservices-based application deployments.

nSupport AI/ML, GPU, and high-performance computing infrastructure.

nSupport GPU/ AI environment

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- Platform Reliability & Performance Management
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nIdentify and resolve Linux and container platform performance issues.

nConduct root cause analysis (RCA) for production incidents.

nPerform proactive health checks, capacity planning, and resource optimization.

nImplement monitoring and alerting for infrastructure and container workloads.

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- Security & Compliance
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nImplement Linux OS hardening as per CIS, STIG, and organizational standards.

nManage vulnerability remediation and security patching.

nConfigure security policies for Kubernetes and OpenShift environments.

nImplement container image scanning, compliance monitoring, and runtime protection.

nEnsure compliance with ISO 27001, PCI-DSS, SOC2, and organizational governance requirements.

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- Automation & DevOps Enablement
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nDevelop automation scripts using Shell Scripting, Python, Ansible, and PowerShell where applicable.

nImplement Infrastructure as Code (IaC) using Terraform, Ansible, and GitOps methodologies.

nSupport CI/CD pipelines integrated with Kubernetes and container platforms.

nDrive operational automation and service reliability improvements.

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- Backup, Recovery & Business Continuity
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nImplement backup and recovery procedures for Linux and containerized platforms.

nSupport disaster recovery planning and testing.

nEnsure platform resilience and adherence to RPO/RTO commitments.

nParticipate in business continuity and disaster recovery exercises.

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- Monitoring & Observability
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nAdminister enterprise monitoring solutions such as Prometheus, Grafana, ELK, Splunk, Dynatrace, AppDynamics, and Zabbix.

nConfigure dashboards, alerts, and operational reporting.

nAnalyze trends and recommend performance improvements.

nSupport observability initiatives across cloud-native platforms.

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- Stakeholder & Service Management
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nParticipate in Incident, Problem, Change, and Release Management activities.

nCollaborate with Application, DevOps, Cloud Engineering, Security, and Infrastructure teams.

nSupport audits, compliance reviews, and customer governance meetings.

nMentor junior administrators and provide technical leadership.

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nExperience & Educational Requirement

nBE/B-Tech or equivalent with Computer Science or Electronics & Communication

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nRELEVANT EXPERIENCE

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- Minimum 8-12 years of experience in Linux System Administration.
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- Minimum 5+ years of hands-on experience supporting Kubernetes/OpenShift platforms in production environments.
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- Experience managing large-scale enterprise and cloud-native environments.
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- Robust exposure to container orchestration technologies.
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- Experience supporting mission-critical 24x7 managed services operations.
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- Experience in DevOps, CI/CD, Infrastructure as Code, and automation frameworks.
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- Understanding of SRE principles and platform reliability engineering practices.
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- Scripting knowledge in Python, Bash, or PowerShell.
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📌 Linux & Kubernetes Administrator (Tamil Nadu)
🏢 Larsen u0026 Toubro-Vyoma
📍 Tamil Nadu