Infosys

CISAMRMFRE-Linux Admin-JL4

Bangalore, India

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hirly's read of this role

Seniority: Mid level
Country: IN
Work mode: On-site / unstated
First seen by hirly: 27 Sept 2026

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the posting

Linux L1/L2 Administrator

Role focus

Advanced Linux administration, performance, availability, security, automation, and operational governance.

Key Responsibilities and Required Skills

01 Operating Systems

Level 2 expertise in Linux OS management and administration across RHEL, CentOS, and SUSE Linux.

02 Performance

Strong expertise in Linux performance troubleshooting and kernel tuning.

03 Storage

Experience configuring storage on Linux and advanced knowledge of Linux LVM.

04 High Availability

Strong hands-on experience with at least one HA solution, such as Veritas Cluster Server (VCS) or HPE

ServiceGuard.

05 Patching

Very good knowledge of RHEL patching and lifecycle activities.

06 Boot Management

Boot process management and troubleshooting of Linux boot issues.

07 Automation

Proficiency in task scheduling and scripting, with the ability to automate critical and repetitive operational

activities.

08 Configuration Management

Responsibilities

Experience with Ansible is desirable.

09 Core Services

Strong knowledge of NFS, Samba, DNS, NTP, and related infrastructure services.

10 Monitoring and Troubleshooting

System resource monitoring and management, log interpretation, problem determination, and resolution.

11 Backup and Recovery

Strong knowledge of backup and recovery procedures.

12 Linux Security

Hands-on experience with Linux firewall technologies, TCP Wrappers, iptables, and SELinux.

13 Virtualization

Experience in virtualized environments, including basic VMware administration

14 Networking

Very good knowledge of Linux networking, routing, NIC bonding, and related troubleshooting.

15 VM Deployment

Experience deploying Linux virtual machines on VMware ESX and Nutanix AHV.

16 Management Consoles

Familiarity with HPE iLO, HPE OneView, and virtual machine consoles.

17 Directory Services

Knowledge of LDAP services is an added advantage.

18 Security Governance

Very good knowledge of security hardening and auditing.

19 Reporting and Risk

Experience preparing capacity reports and risk registers.

20 Leadership

Technical requirements