Job Summary 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:

- Explicit 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

📌 Sr Administrator (Support & Operations) (India)
🏢 HCL Technologies
📍 India