Senior Linux Engineer

iSystems Ltd; Karachi Division; On-site; PKR 3,000,000 - 4,500,000; Full time

Job summary

iSystems Ltd seeks a highly experienced Senior Linux Engineer to design, standardize, automate, and optimize enterprise Linux platforms. This hands-on role focuses on reusable solutions for Linux Operations and Infrastructure teams rather than routine administration.

The candidate will design platform standards, build standardized images, manage provisioning tooling, and lead fault analysis in a 24x7 on-call setup, enabling scalable enterprise deployments across cloud and on-prem environments.

Qualifications

• Bachelor's degree in Computer Science, IT, Engineering or equivalent.
• 12+ years in Enterprise Linux with 5+ years in Senior Linux Administration.
• Proven hands-on with RHEL 6+ and OpenShift/Kubernetes in cloud/on-prem.
• Experience with Red Hat Satellite Server, Kickstart, PXE, DHCP, Redfish.
• Automation with Ansible, Bash, Python; CI/CD/DevOps exposure.
• Knowledge of security hardening, monitoring, SIEM, and performance tuning.

Responsibilities

• Design and maintain enterprise Linux platform standards and automated build solutions.
• Develop standardized OS and container images for bare-metal, VMware, OpenShift, and cloud.
• Manage Red Hat Satellite, Kickstart, PXE, DHCP, and Redfish for provisioning.
• Engineer and optimize RHEL platforms including kernel, I/O, and network performance.
• Implement Linux security hardening and compliance standards.
• Develop monitoring and observability for Linux OS and server infra (Splunk/ELK/AppDynamics).
• Automate patching, firmware updates, configuration mgmt, monitoring, and compliance.
• Develop AI-driven solutions to improve Linux engineering and BAU operations.
• Support Linux platforms across OpenShift, VMware, Kubernetes, and cloud envs.
• Act as Level 3 escalation point and lead root-cause analysis.

Skills

RHEL platforms

OpenShift

Kubernetes (cloud)

Ansible

Bash

Python

Packer

CI/CD/DevOps

Linux security

Troubleshooting

Monitoring & SIEM

Automation

On-call support

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

Red Hat Satellite Server

Kickstart

PXE

DHCP

Redfish

VMware

OpenShift

Kubernetes

Ansible

Bash

Python

Packer

AWS

Azure

Splunk/ELK/AppDynamics

Job description

We are looking for a highly experienced Senior Linux Engineer to design, standardize, automate, and optimize enterprise-wide Linux platforms. This is a hands-on engineering role, focused on building reusable solutions and capabilities for Linux Operations and Infrastructure teams rather than performing day-to-day system administration.

Responsibilities

• Design and maintain enterprise-wide Linux platform standards and automated build solutions.
• Develop standardized OS and container golden images for bare-metal, VMware, OpenShift, and cloud environments.
• Manage and enhance Red Hat Satellite, Kickstart, PXE, DHCP, and Redfish for automated provisioning.
• Engineer and optimize RHEL platforms, including kernel, CPU, memory, I/O, and network/TCP performance.
• Define and implement Linux security, hardening, configuration, and compliance standards.
• Develop monitoring and observability solutions for Linux OS and Dell/HPE server infrastructure, integrating with Splunk, ELK, SIEM, and AppDynamics.
• Automate patching, firmware updates, configuration management, monitoring, and compliance using Ansible, Bash, and Python.
• Develop AI-driven solutions to improve Linux engineering and BAU operations.
• Support Linux platforms across OpenShift, VMware, Kubernetes, and cloud environments.
• Act as a Level 3 escalation point for critical incidents and lead root cause analysis.
• Collaborate with Infrastructure, DevOps, Security, Enterprise Architecture, and BAU teams to establish future-state Linux standards.
• Work with technology vendors and service partners to drive platform improvements and roadmap initiatives.
• Participate in a 24x7 on-call rotation for critical incidents.

Requirements

• Bachelor’s degree in Computer Science, IT, Engineering, or a related field, or equivalent experience.
• 12+ years of experience in Enterprise Linux, including at least 5 years in Senior Linux Administration and 5 years in Linux Engineering.
• Strong hands-on expertise with RHEL 6 onwards.
• Extensive experience with Red Hat Satellite Server, preferably Kickstart.
• Strong knowledge of PXE, DHCP, Redfish, and automated OS provisioning.
• Hands-on experience creating standardized OS/container images across on-premises, VMware, OpenShift, and cloud environments.
• Strong expertise in Red Hat OpenShift and experience with Kubernetes in cloud environments.
• Proficiency in Ansible, Bash, Python, Packer, and CI/CD/DevOps technologies.
• Strong understanding of DNS, NFS, NTP, SNMP, SMTP, Active Directory, TCP/IP, and Ethernet.
• Strong Linux troubleshooting, kernel analysis, performance tuning, and optimization skills.
• Experience with enterprise monitoring, logging, and SIEM solutions.
• Strong understanding of Linux security hardening and configuration management.
• RHCE certification required; RHCA is a plus.
• AWS/Azure certifications are advantageous.