Senior Linux Engineer

TEKsystems; India; Hybrid; INR 900,000 - 1,800,000; Full time

Job summary

TEKsystems is seeking an experienced Linux System Administrator to join the Infrastructure and Production Support team in India. The role covers RHEL/CentOS/Ubuntu environments with 24x7 rotational support and on-call duties.

You will perform OS patching, kernel upgrades, and automation using Ansible and Bash scripting. Strong collaboration with cross-functional teams and ITIL-aligned incident/change processes are essential.

Qualifications

• Extensive Linux administration experience across RHEL/7/8/9 and related distros.
• Strong patching, package management (YUM/DNF/RPM), and kernel upgrade skills.
• Solid troubleshooting for performance, boot, and networking issues in prod.
• Automation using Ansible and Bash scripting is essential.
• Experience with cloud and virtualization (AWS, VMware).
• Knowledge of ITIL incident/change/problem management processes.

Responsibilities

• Administer Linux servers, patch monthly, and manage lifecycle.
• Handle user accounts, permissions, and authentication services.
• Investigate incidents, perform RCA, and participate in on-call rotations.
• Collaborate with application, database, storage, and network teams.
• Support cloud infra on AWS and virtualization with VMware.

Skills

Linux administration

OS patching

Troubleshooting

Ansible automation

Bash scripting

LVM

NFS

Multipath

Storage management

Filesystem administration

ITIL processes

Incident management

Change management

Problem management

On-call rotations

Education

Bachelor's Degree in Computer Science, Information Technology, or related field

RHCSA/RHCE Certification

AWS Certification

Tools

AWS EC2

AWS EBS

AWS IAM

AWS VPC

CloudWatch

VMware

Ansible

Docker

Kubernetes

New Relic

Grafana

Zabbix

Splunk

Rapid7

SentinelOne

Trend Micro

PAM

SSSD

SELinux

Job description

Job Title: Linux System Administrator / Linux Production Support Engineer (L2/L3)

Experience: 6-10 Years

Location: Bangalore / Hyderabad / Remote (Current)

Shift: 24x7 Rotational Support

Job Description

We are looking for an experienced Linux System Administrator to join our Infrastructure and Production Support team. The ideal candidate should have strong expertise in Linux administration, OS patching, automation, cloud technologies, and production support in enterprise environments.

Key Responsibilities

• Administer and support Red Hat Enterprise Linux (RHEL), CentOS, Oracle Linux, and Ubuntu servers.
• Perform Linux server installation, configuration, upgrades, and lifecycle management.
• Manage user accounts, groups, permissions, ACLs, sudo access, and authentication services.
• Execute monthly OS patching, kernel upgrades, vulnerability remediation, and compliance activities.
• Troubleshoot Linux performance, boot issues, service failures, filesystem issues, and system outages.
• Develop and maintain automation using Ansible and Shell scripting.
• Monitor server health, analyze logs, and perform root cause analysis (RCA) for production incidents.
• Support cloud infrastructure hosted on AWS and virtualized environments on VMware.
• Participate in incident, problem, and change management activities.
• Collaborate with application, database, storage, and network teams for infrastructure support.
• Provide 24x7 production support and participate in on-call rotations.

Required Skills

• Strong experience in Linux Administration (RHEL 7/8/9).
• Hands-on experience with OS patching, package management (YUM/DNF/RPM), and kernel upgrades.
• Strong troubleshooting skills in Linux performance, boot process, GRUB, filesystems, and networking.
• Experience with Ansible automation and Bash Shell Scripting.
• Knowledge of LVM, NFS, multipath, storage management, and filesystem administration.
• Experience with AWS services such as EC2, EBS, IAM, VPC, and CloudWatch.
• Working knowledge of VMware virtualization.
• Experience handling P1/P2 incidents in production environments.
• Understanding of ITIL processes, incident management, change management, and problem management.

Preferred Skills

• Python scripting.
• ServiceNow.
• Monitoring tools such as New Relic, Grafana, Zabbix, or Splunk.
• Security and vulnerability management tools such as Rapid7, SentinelOne, Trend Micro.
• Experience with Docker and Kubernetes.
• Knowledge of PAM, SSSD, SELinux, and server hardening.

Preferred Qualifications

• Bachelor's Degree in Computer Science, Information Technology, or related field.
• RHCSA/RHCE Certification preferred.
• AWS Certification preferred.
• Experience supporting large-scale enterprise production environments.