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Enterprise Solutions Inc.
Linux System Administrator

Linux System Administrator

On site

Ocoee, United states

$ 60 /hour

Senior

Freelance

22-01-2026

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Skills

Communication Firewalls Splunk Configuration Management Ansible VMware Networking Linux Windows TCP/IP Unix/Linux

Job Specifications

We are seeking a highly experienced Senior UNIX/Linux Systems Administrator to support and maintain a large Linux server environment (approx. 300 systems). This role focuses on RHEL administration, patching, automation, security, and performance tuning. The engineer will handle production support, troubleshooting, server builds, and enterprise infrastructure upgrades.

Key Responsibilities

Manage and administer RHEL 8/9 environments.
Perform OS patching, quarterly updates, and security remediations.
Build and configure Linux servers and custom setups.
Tune Oracle database servers for performance.
Manage security vulnerabilities, audits, and compliance tasks.
Administer SolarWinds, Ansible (playbooks & Automation Platform), and Red Hat Satellite 6.
Provide operational support for VMware environments.
Troubleshoot system performance, OS, networking, and infrastructure issues.
Support a 24×7 environment via rotational on‑call duties.
Document configurations, processes, and operational procedures.
Collaborate with cross‑functional IT & business teams for solution delivery.

Required Skills

10+ years of experience in Linux/UNIX systems administration.
Strong RHEL 8/9 experience (administration + patch management).
Strong in Ansible, automation, scripting, and server configuration management.
Solid understanding of TCP/IP networking, firewalls, and network topology.
Experience with vulnerability remediation and compliance (PCI is a plus).
VMware operational experience.
Strong troubleshooting and system migration experience.

Nice-to-Have

Storage fundamentals.
Basic DB administration.
Basic Windows admin exposure.
Cloud integration basics.
Experience with Veritas NetBackup.
Familiarity with JBoss, WebSphere, Splunk, HP ALM.

Soft Skills

Strong verbal & written communication.
Detail-oriented with excellent documentation habits.
Ability to work independently and in cross-functional teams.
Ability to handle multiple priorities and deadlines.

Education

Bachelor’s degree in Computer Science, Information Systems, or related field or equivalent professional experience.

About the Company

Enterprise Solutions, Inc. is a technology-intensive services company. We develop and deliver software and engineering solutions to our partners; we work relentlessly to keep our clients happy, and we measure our business success with the trust we earn from them. Enterprise Solutions offers implementation services for VMS, MSP, ERP, cloud, analytics and digital transformation. We are a certified Minority Business Enterprise (MBE). We have extensive experience in end-to-end software development using a wide array of techno... Know more