Job Description

Job Purpose

n

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, OpenShift, and cloud-native technologies

n

n

Roles & Responsibilities

n

n
- Linux Infrastructure Administration
n

n

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

n

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

n

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

n

Manage user administration, access controls, and privilege management.

n

n

n
- Container Platform Administration
n

n

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

n

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

n

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

n

Ensure container platform availability, scalability, and performance.

n

n

n
- Cloud-Native Platform Management
n

n

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

n

Implement cloud-native operational best practices for containerized applications.

n

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





n

Support microservices-based application deployments.

n

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

n

Support GPU/ AI workplace

n

n

n
- Platform Reliability & Performance Management
n

n

Identify and resolve Linux and container platform performance issues.

n

Conduct root cause analysis (RCA) for production incidents.

n

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

n

Implement monitoring and alerting for infrastructure and container workloads.

n

n

n
- Security & Compliance
n

n

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

n

Manage vulnerability remediation and security patching.

n

Configure security policies for Kubernetes and OpenShift environments.

n

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

n

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

n

n

n
- Automation & DevOps Enablement
n

n

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

n

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

n

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

n

Drive operational automation and service reliability improvements.

n

n

n
- Backup, Recovery & Business Continuity
n

n





Implement backup and recovery procedures for Linux and containerized platforms.

n

Support disaster recovery planning and testing.

n

Ensure platform resilience and adherence to RPO/RTO commitments.

n

Participate in business continuity and disaster recovery exercises.

n

n

n
- Monitoring & Observability
n

n

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

n

Configure dashboards, alerts, and operational reporting.

n

Analyze trends and recommend performance improvements.

n

Support observability initiatives across cloud-native platforms.

n

n

n
- Stakeholder & Service Management
n

n

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

n

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

n

Support audits, compliance reviews, and customer governance meetings.

n

Mentor junior administrators and provide technical leadership.

n

n

Experience & Educational Requirement

n

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

n

n

RELEVANT EXPERIENCE

n

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

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