Senior Systems Administrator – EOL Migration (RHEL & Windows)

Hybrid in Austin, TX, US • Posted 13 hours ago • Updated 13 hours ago

Contract W2

Contract Independent

No Travel Required

Hybrid

Depends on Experience

Fitment

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Job Details

Skills

Ansible
Backup
Bash
Collaboration
Configuration Management Database
Data Center Migration
Documentation
Hardening
Legacy Systems
Linux
Management
Microsoft Operating Systems
Microsoft Windows
Microsoft Windows Server
Microsoft Windows Server 2008
Migration
Nessus
Recovery
Red Hat Enterprise Linux
Regulatory Compliance
STIG
Scripting
System Documentation
VMware
Vulnerability Management
Windows PowerShell

Summary

Hello Professionals,

Greetings from Cogent Data Solutions LLC, We are looking for a Senior Systems Administrator – EOL Migration & Modernization (Windows & RHEL) with one of our direct clients in Austin, Texas. Please checkout the Job Description below;

Title: Senior Systems Administrator – EOL Migration & Modernization (Windows & RHEL)

Location: Austin, Texas

Work Type: Hybrid

Job Type: Contract

Job Requirements:

Job Summary:

We are seeking a skilled Senior Systems Administrator to support the migration and modernization of End-of-Life (EOL) systems across Windows Server and Red Hat Enterprise Linux (RHEL) environments.
The role focuses on upgrading legacy systems to supported platforms, ensuring improved security, performance, and operational stability.

Key Responsibilities:

Assess and prioritize legacy systems for migration based on risk and business impact.
Plan and execute OS upgrades. (Windows Server 2008/2012 → 2016/2019/2022, RHEL 5/6/7 → 8/9)
Perform system rebuilds (preferred) and controlled migrations with minimal downtime.
Implement backup, recovery, and validation processes during migrations.
Apply system hardening and security compliance. (STIG, CIS benchmarks)
Automate configuration and deployment using Ansible and PowerShell.
Troubleshoot migration-related issues and provide post-migration support.
Maintain documentation, CMDB updates, and migration reports.
Collaborate with cross-functional teams and stakeholders.

Required Skills & Experience:

8+ years of experience in Windows Server and RHEL administration.
Strong experience with OS migrations and legacy system upgrades.
Proficiency in scripting/automation. (Bash, PowerShell, Ansible)
Experience with vulnerability management and patching tools. (e.g., Nessus, OpenSCAP)
Knowledge of system hardening standards. (STIG, CIS)
Experience working in virtualized environments. (VMware preferred)

Preferred Qualifications:

Experience in large-scale infrastructure or data center migrations.
Familiarity with compliance-driven environments.
Strong troubleshooting and documentation skills.

Key Deliverables:

Weekly migration execution. (minimum 1 system per week per FTE)
Migration plans, reports, and system documentation.
Hardened, compliant, and fully supported systems post-migration.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10504512
Position Id: 26R0015472b
Posted 13 hours ago

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Hybrid in Austin, Texas

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Today

City : Austin State : Texas Neos is Seeking a Senior Windows/Linux Systems Administrator for a contract role with our client in Austin, TX. HYBRID - CANDIDATES CURRENTLY RESIDING IN THE AUSTIN, TEXAS AREA NEED APPLY Hybrid role 5805 N. Lamar Blvd, Austin, TX 78752 No calls, no emails, please respond directly to the "apply" link with your resume and contact details. DESCRIPTION OF SERVICES The Support System Administrator will be responsible for supporting the migration and modernization of

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System Administrator/RHEL Administrator with Hybrid at Austin, TX

Hybrid in Austin, Texas

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Job Title: Sr. System Administrator Location: Austin, TX (Hybrid) YoE: 12+ Years Job Description: The Support System Administrator will be responsible for supporting the migration and modernization of EOL systems, including legacy systems running older versions of Windows and Red Hat Enterprise Linux . The role will focus on upgrading these systems to supported OS versions (e.g., Windows Server 2016/2019/2022, RHEL 5/6/7/8/9) to ensure improved security, performance, and operational continuity.

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Support System Administrator/ Support Technician (RHEL and Windows OS)

Hybrid in Austin, Texas

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Job title: Support System Administrator/ Support Technician Location:Austin, TX (Hybrid) The primary work location(s) will be at 5805 N. Lamar Blvd., Austin, TX 78752 Duration:20+ Months Job number:(26R0015472b) Due date: 04/01/2026 Job Description: 1. System Assessment & Planning: Assess Legacy Systems: Conduct detailed assessments of existing EOL systems, including Windows Server (2012 and older) and Red Hat Enterprise Linux (RHEL 5, 6,7 and newer). Identify Priorities: Prioritize migration ba

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Senior Systems Administrator – EOL Migration (RHEL & Windows)

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