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

Job Summary

 Linux Admin : The Linux System Administrator (L2) is responsible for delivering end‑to‑end operational administration of Linux servers across on‑premises and cloud environments under a managed services model. The role holds primary responsibility and accountability (R, A) for day‑to‑day Linux system operations in accordance with agreed standards, security controls, and service level commitments, while coordinating closely with customer stakeholders for approvals and inputs where required.\r\nThis role manages the complete Linux server lifecycle, including health monitoring, incident and problem management, change execution, user administration, boot and firmware management, storage and filesystem administration, and backup and restore operations. The administrator ensures proactive system stability by defining monitoring thresholds, performing recurring health checks, and resolving issues related to OS packages, performance, storage, and high availability environments.\r\nThe position also supports infrastructure services such as NIS, DNS, HA clusters, and networking configuration, manages server builds and decommissioning, and ensures reliable backup executions across enterprise platforms. Working with hardware vendors, backup teams, and internal infrastructure groups, the Linux System Administrator (L2) plays a critical role in maintaining availability, operational integrity, and compliance of enterprise Linux environments under a structured ITIL‑aligned service delivery model.

Key Responsibilities

• Provide L2 operational administration and support for Linux servers.\r\n• Monitor system health, performance, and capacity; perform proactive health checks.\r\n• Handle incidents, service requests, and problem tickets within defined SLAs.\r\n• Execute approved changes including patching, OS tuning, and configuration updates.\r\n• Administer Linux user/group management, permissions, and access controls.\r\n• Manage filesystems, disk partitions, LVM, and storage resizing activities.\r\n• Support Linux boot process, kernel parameters, and system services.\r\n• Administer DNS, NIS, and authentication-related configurations.\r\n• Support High Availability (HA) environments and perform node administration.\r\n• Build, rebuild, and decommission Linux servers as per standard operating procedures.\r\n• Perform backup and restore operations and support backup tool integrations.\r\n• Coordinate with vendors, infrastructure teams, and customers for issue resolution.\r\n• Maintain SOPs, operational documentation, and audit evidence.\r\n

Skill Requirements

 Hands-on experience administering Linux systems (RHEL, CentOS, Ubuntu, or equivalent).\r\n• Good understanding of Linux OS internals, boot process, filesystems, and package management.\r\n• Experience with LVM, storage management, and system troubleshooting.\r\n• Knowledge of ITIL processes such as Incident, Change, and Problem Management.\r\n• Experience working in enterprise or managed services environments.\r\n• Willingness to work in shifts and on-call support models.\r\nQualification –\r\nB-Tech or equivalent Bachelor’s degree in Computer Science or related field\r\n

Other Requirements

Fluent in English

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 226,300 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 December 2025 totaled $14.5 billion.

23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.