Linux Administrator

Tata Consultancy Services; Gurugram District; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Tata Consultancy Services is seeking an experienced Linux Operations Engineer to manage L2/L3 Unix/Linux operations across on-premises and cloud environments (AWS/Azure) with focus on currency, patching, monitoring, and stability.

Role involves driving standardization, EOL remediation, DR readiness, and observability improvements, coordinating with ITSM/CMDB and downstream monitoring tools to ensure resilient services.

Qualifications

• Provide advanced troubleshooting and resolution for Linux incidents (availability, performance, filesystem, user/access, services, kernel-related issues).
• Support operating activities across onprem, AWS, and Azure Linux estates.
• Execute OS version upgrades and remediation for EOL/EOS Linux servers with focus on critical systems.
• Maintain compliance with supported version levels and reduce vendor support risk exposure.
• Perform patch planning/execution and support extending AWS SSM for onprem and cloud.

Responsibilities

• Provide advanced troubleshooting and resolution for Linux incidents (availability, performance, filesystem, user/access, services, kernel-related issues).
• Support operational activities across onprem, AWS, and Azure Linux estates, aligning to the customer operating model for infrastructure operations.
• Execute OS version upgrades and remediation for EOL/EOS Linux servers with priority to critical systems.
• Maintain compliance with “supported version levels” and reduce vendor risk exposure.
• Perform patch planning/execution and support extending AWS SSM for onprem and cloud, including automation and runbooks.

Skills

Linux/Unix operations

OS patch management

ITSM/ITOM integration

Cloud ops (AWS/Azure)

Observability/monitoring

Automation tooling (Ansible/Terraform)

Tools

ServiceNow ITOM

SolarWinds

Grafana/Loki/Prometheus

SCCM/Intune

AWS SSM

AWX/Ansible

Terraform

ControlM/Tidal

Job description

Role & responsibilities

Job Requirements*

• Provide L2/L3 operations for customers UNIX/Linux estate across onprem + AWS + Azure + VMware, with strong focus on OS currency (EOL remediation), patch compliance, monitoring/event management integration, and operational stability
• Ownership of end-to-end Linux tower delivery service and transformation — driving Linux standardization, EOL burn-down strategy, patch automation adoption, DR readiness governance alignment, observability maturity, and SLA-led operations, emphasizing event management, patching automation, risk registry, and operating model maturity.

Tools / Platforms

• ITSM / Event Mgmt / AIOps: ServiceNow, ServiceNow ITOM
• Infra Monitoring: SolarWinds
• Observability / Logs: Grafana (Prometheus stack), Loki/Fluentd
• Patching: AWS SSM direction for patching onprem + cloud; SCCM/Intune
• Automation/Orchestration: ServiceNow + AWX/Ansible + Terraform
• Batch: ControlM / Tidal (where Linux workloads rely on scheduling dependencies)

Key Responsibilities*

• Provide advanced troubleshooting and resolution for Linux incidents (availability, performance, filesystem, user/access, services, kernel-related issues).
• Support operational activities across onprem, AWS, and Azure Linux estates, aligning to the broader customer operating model for infrastructure operations and administration.
• Execute OS version upgrades and remediation for EOL/EOS Linux servers, prioritizing critical systems and high-risk populations (e.g., EOL VMs)
• Maintain compliance with “supported version levels” expectations by ensuring planned upgrades and reducing vendor support risk exposure.
• Perform patch planning/execution and support the customer’s direction to extend AWS SSM for patching across onprem and cloud, including pre-check/post-check automation and maintenance coordination.
• Operate within the approved tool landscape for patch/image management (SCCM/Intune) where relevant to server operations and standardization.
• Integrate Linux monitoring into Customer’s ServiceNow ITOM event management approach and downstream monitoring tools like SolarWinds, plus observability via Grafana/Loki where used.
• Improve alert quality by participating in tuning thresholds and reduction of noisy events, consistent with the customer event management direction.
• Support DR readiness activities for Linux workloads, aligning to the TDAF callout that periodic DR testing/governance must be established (execution support, runbook validation, recovery assistance).
• Provide operational inputs into capacity planning and proactive risk identification (CPU/memory/storage growth trends).
• Maintain Linux SOPs/runbooks and update CMDB/service records as required through ServiceNow, aligned to the tool strategy emphasizing ITSM/CMDB integration.
• Define the Linux OS standard/version baselines and a sequenced plan to reduce EOL exposure (including EOL VM populations highlighted in inventory)
• Drive estate rationalization across platforms (VMware/AWS/Azure) and ensure “supported release” posture to reduce operational and security risk.
• Establish patch policy, cadence, and compliance reporting; operationalize customer’s direction to extend AWS SSM patching for onprem and cloud, including automation of checks and standardized runbooks.
• Align patch/image practices to Customer’s retained tool ecosystem (SCCM/Intune).
• Ensure Linux signals (metrics/logs/events) are integrated into ServiceNow ITOM event management and correlated with downstream tooling (SolarWinds) and observability dashboards (Grafana/Loki).
• Sponsor alert-quality improvements (threshold strategy, noise reduction)
• Implement Linux tower contribution to DR readiness, aligned to the TDAF callout that DR drills/process governance must be mandated and executed, ensuring Linux workloads meet agreed RTO/RPO expectations by criticality.
• Define Linux tower SLAs/OLAs, measurement methods, and reporting cadence.
• Ensure Linux tower maintains and governs a risk register and operational documentation discipline via ServiceNow/CMDB integration.
• Serve as the Linux tower escalation owner for P1/P2 issues, stakeholder communications, and cross-tower coordination (Compute/Network/DB/Storage).