Job Description

Job Purpose

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The 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, Open Shift, and cloud-native technologies

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Roles & Responsibilities

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- Linux Infrastructure Administration

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Install, configure, administer, and support Red Hat Enterprise Linux (RHEL), Ubuntu, SUSE Linux, and other enterprise Linux distributions.

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

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

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Manage user administration, access controls, and privilege management.

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- Container Platform Administration

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Deploy, administer, and support container platforms including Kubernetes, Open Shift, Docker Enterprise, Rancher, and container runtime environments.

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

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Configure and maintain Namespaces, Pods, Stateful Sets, Deployments, Services, Ingress Controllers, and Persistent Volumes.

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Ensure container platform availability, scalability, and performance.

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- Cloud-Native Platform Management

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Support hybrid and multi-cloud containerized workloads running on L & T Vyoma, private cloud & Sovereign cloud environments.

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Implement cloud-native operational best practices for containerized applications.

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

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Support microservices-based application deployments.

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

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Support GPU/ AI workplace

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- Platform Reliability & Performance Management

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Identify and resolve Linux and container platform performance issues.

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Conduct root cause analysis (RCA) for production incidents.

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

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Implement monitoring and alerting for infrastructure and container workloads.

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- Security & Compliance

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Implement Linux OS hardening as per CIS, STIG, and organizational standards.

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Manage vulnerability remediation and security patching.

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Configure security policies for Kubernetes and Open Shift environments.

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

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

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- Automation & Dev Ops Enablement

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Develop automation scripts using Shell Scripting, Python, Ansible, and Power Shell where applicable.

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Implement Infrastructure as Code (IaC) using Terraform, Ansible, and Git Ops methodologies.

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

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Drive operational automation and service reliability improvements.

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- Backup, Recovery & Business Continuity

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Implement backup and recovery procedures for Linux and containerized platforms.

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Support disaster recovery planning and testing.

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Ensure platform resilience and adherence to RPO/RTO commitments.

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Participate in business continuity and disaster recovery exercises.

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- Monitoring & Observability

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Administer enterprise monitoring solutions such as Prometheus, Grafana, ELK, Splunk, Dynatrace, App Dynamics, and Zabbix.

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Configure dashboards, alerts, and operational reporting.

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Analyze trends and recommend performance improvements.

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Support observability initiatives across cloud-native platforms.

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- Stakeholder & Service Management

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Participate in Incident, Problem, Change, and Release Management activities.

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Collaborate with Application, Dev Ops, Cloud Engineering, Security, and Infrastructure teams.

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Support audits, compliance reviews, and customer governance meetings.

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Mentor junior administrators and provide technical leadership.

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Experience & Educational Requirement

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

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RELEVANT 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/Open Shift platforms in production environments.

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- Experience managing large-scale enterprise and cloud-native environments.

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- Strong exposure to container orchestration technologies.

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- Experience supporting mission-critical 24x7 managed services operations.

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- Experience in Dev Ops, 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 Power Shell.

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📌 Linux & Kubernetes Administrator (Chennai)
🏢 Larsen & Toubro Vyoma
📍 Chennai