Sr Administrator (Support & Operations)

Job description

Linux L2 - RHEL, SUSE, CentOS, Hybrid Cloud / Cloud Business Unit Infrastructure, Shell/Bash Scripting, Ansible, VMware, Storage Integration, LVM, Clustering, Network Protocols, Monitoring Tools. Key Responsibilities Linux HCBU (L3) Key Responsibilities: Linux System Operations & Administration: Perform day-to-day administration, installation, configuration, user access management, patch updates, and system maintenance for RHEL/CentOS/SUSE environments across hybrid cloud environments. Storage & LVM Management: Configure and manage Logical Volume Management (LVM), perform file system expansion, volume creation, disk provisioning, and mount point management attached to SAN/NAS storage. Troubleshooting & Incident Resolution: Perform initial triage, system diagnostics, performance tuning, and resolution for OS-level crashes, kernel panics, CPU/Memory bottlenecks, and high-priority infrastructure tickets. Automation & Scripting: Develop and maintain Shell/Bash scripts and Ansible playbooks to automate routine administrative tasks, patching cycles, user management, and compliance checks. Hybrid Cloud & Infrastructure Integration: Support host connectivity, network configuration (bonding, VLANs, route setup), and baseline integration with Cloud Business Unit (HCBU) virtualized and enterprise compute platforms. System Backup & Recovery: Execute regular baseline system backups, system image restore operations, and participate in Disaster Recovery (DR) drills and failover testing. Compliance & Security Maintenance: Implement Linux security hardening guidelines (CIS benchmarks), access controls (Sudo, SSH keys), patch management, and vulnerability remediation across assigned servers. Skill Requirements Technical: Linux Administration: 3–5 years of dedicated hands-on experience administering enterprise Linux operating systems (RHEL 7/8/9, CentOS, or SUSE). Logical Volume Manager (LVM) & Filesystems: Core expertise in managing LVM, EXT4/XFS filesystems, disk partition layouts, and storage attachment. Automation & Scripting: Proficiency in writing Shell/Bash scripts and baseline exposure to Ansible for configuration automation. Networking & Protocols: Solid grasp of TCP/IP networking, DNS, DHCP, NFS, CIFS, SSH, FTP, and bonding/teaming configurations. User & Access Management: Strong knowledge of SSH key authentication, sudoers policies, user accounts, and Active Directory / LDAP integration. Non-Technical Strong analytical problem-solving skills for complex system diagnostics and OS performance issues. Effective operational communication skills for working with cross-functional IT and infrastructure teams. Proven ability to manage L2 incident tickets independently within defined SLA boundaries. Good to Have Skills: Basic experience managing virtualized compute environments on VMware vSphere or KVM. Exposure to cloud infrastructure platforms (AWS, Azure, or private cloud environments). Understanding of container technology fundamentals (Docker/Podman). Soft Skills: Clear written and verbal communication for logging ticket notes, root cause analysis (RCA), and operational handovers. High adaptability and responsiveness under incident triage or emergency maintenance windows. Strong team-player attitude with focus on standard operating procedures (SOPs). Other Requirements Certifications: Red Hat Certified System Administrator (RHCSA) (Highly Preferred) , Red Hat Certified Engineer (RHCE) or AWS/Azure Fundamentals (Good to have), ITIL v3/v4 Foundation (Preferred) Overview Role – Linux HCBU L2 Experience Level – 3-5 years Job Location – Bengaluru / Hyderabad Job Type – Full-Time Support type - 24x7 Operational Support & Project Engagements Apply now 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 223,000 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 June 2026 totaled $14.8 billion. Disclaimer Privacy Statement Terms of use Sitemap Raise a Grievance We use cookies on our site. Please read more about cookies policy here. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. 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