Linux Subject Matter Expert

Enexus Global Inc.; Oakland (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Enexus Global Inc. seeks an experienced Linux Subject Matter Expert to support enterprise Linux infrastructure, automation initiatives, and platform projects. You will collaborate with Infra, Cloud, Security, and App teams to deliver secure, automated solutions across large environments.

The role emphasizes deep RHEL expertise, Red Hat Satellite, Ansible Automation Platform, and building scalable gold images, with a strong focus on automation, IaC, and proactive troubleshooting.

Qualifications

• Extensive Linux administration experience in enterprise environments.
• Deep expertise with RHEL and Red Hat Satellite.
• Proficient in Ansible Automation Platform and IaC practices.
• Strong scripting skills in Bash/Python/Shell.

Responsibilities

• Design, deploy, administer, and support enterprise RHEL environments.
• Build, maintain, and enhance RHEL Gold Images with security/compliance.
• Perform OS upgrades, patching, and lifecycle management.
• Troubleshoot OS, performance, and infrastructure issues.
• Administer Satellite infrastructure and manage content views/host lifecycle.
• Develop and maintain Satellite deployment standards.
• Design and implement automation with Ansible and playbooks.
• Develop and maintain automation frameworks and inventories.
• Automate provisioning, config management, patching, and compliance.
• Drive Infrastructure as Code (IaC) best practices.
• Develop automation scripts in Bash, Python, or Shell.
• Improve operational efficiency through automation.
• Lead infra modernization and cloud integration projects.

Skills

Linux administration

Automation expertise

Project delivery

Communication

Tools

Red Hat Satellite

Ansible Automation Platform

Scripting (Bash/Python)

RPM packaging

Terraform

AWS

Azure

VMware

Job description

We are seeking an experienced Linux Subject Matter Expert (SME) to support enterprise Linux infrastructure, automation initiatives, and strategic platform projects. The ideal candidate will have deep expertise in Red Hat Enterprise Linux (RHEL), Red Hat Satellite, Ansible Automation, and Linux administration at scale. This role will work closely with Infrastructure, Cloud, Security, and Application teams to deliver reliable, secure, and automated solutions across enterprise environments.

Key Responsibilities

Design, deploy, administer, and support enterprise Linux environments primarily based on Red Hat Enterprise Linux (RHEL).

Build, maintain, and enhance standardized RHEL Gold Images following security and compliance requirements.

Perform OS upgrades, patching, vulnerability remediation, and lifecycle management.

Troubleshoot complex operating system, performance, and infrastructure issues.

Red Hat Satellite Management

Administer and maintain Red Hat Satellite infrastructure.

Administer and maintain Red Hat Satellite infrastructure.

Manage server provisioning, patch management, software repositories, content views, and host lifecycle management.

Develop and maintain Satellite deployment standards and operational procedures.

Automation & Configuration Management

Design and implement automation solutions using Ansible.

Develop and maintain Ansible playbooks, roles, inventories, and automation frameworks.

Automate server provisioning, configuration management, patching, compliance validation, and operational processes.

Drive Infrastructure as Code (laC) best practices.

Develop and maintain automation scripts using Bash, Python, or Shell scripting.

Improve operational efficiency through automation and process optimization.

Create tools and scripts for monitoring, reporting, and system administration activities.

Project Delivery

Lead and participate in infrastructure modernization and transformation projects.

Support data center migrations, platform upgrades, automation initiatives, and cloud integration projects.

Collaborate with application and infrastructure teams to onboard and support enterprise

7+ years of enterprise Linux administration experience.

Extensive experience with Red Hat Enterprise Linux (RHEL)

Strong experience building and maintaining RHEL Gold Images

Hands-on experience administering Red Hat Satellite

Advanced experience with Ansible Automation Platform.

Strong scripting experience with Bash, Shell, or Python.

Experience creating, maintaining, and deploying custom RPM packages to support enterprise applications and platform standards.

Strong troubleshooting and performance tuning skills

Excellent communication and documentation skills.

Preferred Qualifications

Experience with Amazon Web Services (AWS).

Experience with Microsoft Azure.

Knowledge of Terraform and Infrastructure as Code practices.

Experience with VMware, virtualization platforms, or hybrid cloud environments.

Familiarity with CI/CD pipelines and DevOps methodologies.

Red Hat certifications (RHCSA, RHCE) preferred

Desired Skills

RHEL Gold Image Engineering

Red Hat Satellite

Ansible Automation

Bash / Shell Scripting

RPM packaging

Infrastructure as Code (Terraform)

AWS

Linux Security Hardening

Enterprise Infrastructure Operations

Project Leadership and Delivery

This role is ideal for a hands-on Linux SME who can combine deep technical expertise with automation and project delivery experience in a large enterprise environment.