Support Technician 3 26R0015472

LMG Technology Services LLC; Austin (TX); Hybrid; USD 90,000 - 120,000; Full time

Job summary

LMG Technology Services LLC seeks a Support System Administrator based in Austin, TX. This hybrid role focuses on migrating and modernizing end-of-life systems, ensuring operational continuity by upgrading older versions of Windows and Red Hat Enterprise Linux. Responsibilities include system assessments, migrations, security enhancements, and post-implementation reviews. Candidates should have over 8 years of experience in RHEL and Windows OS. The job offers normal business hours with potential non-standard hours required.

Qualifications

• Must have 8+ years of experience with RHEL and Windows OS.
• Familiarity with system hardening and compliance.
• Experience in migration strategy and implementation.

Responsibilities

• Assess legacy systems and develop migration strategies.
• Migrate legacy OS to newer, supported versions.
• Reconfigure system services after OS upgrades.
• Perform system hardening and vulnerability scans.
• Provide post-migration support for issues.
• Maintain documentation for migration processes.
• Ensure backup solutions and disaster recovery plans are in place.

Skills

Experience with RHEL

Experience with Windows OS

System Assessment & Planning

System Migration

Configuration Management

Security Enhancements

Troubleshooting and Support

Documentation and Reporting

Backup & Disaster Recovery

Collaboration and Training

Tools

Ansible

PowerShell

Job description

Overview

Hybrid, On-Site and Telework (Must live in Austin, TX area)

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. The position is Hybrid: On-Site and Telework in Austin, TX 78752.

Key Responsibilities

• System Assessment & Planning
  • Assess legacy systems, including Windows Server 2012 and older and Red Hat Enterprise Linux (RHEL 5, 6, 7 and newer).
  • Identify priorities based on system criticality, security risks, and operational needs.
  • Develop a migration strategy with timelines, risk assessments, and upgrade paths.
• System Migration
  • Migrate legacy OSs to newer, supported versions (RHEL 8/9, Windows Server 2022/2025).
  • Plan and execute upgrade paths; in-place upgrades as a last resort; perform reinstallation following best practices to minimize downtime.
  • Implement data backup and recovery strategies before, during, and after migration.
  • Validate system functionality after upgrade (performance checks, application compatibility, system services, networking).
• Configuration Management
  • Reconfigure system services and settings after OS upgrade (networking, storage, security).
  • Utilize configuration management tools (e.g., Ansible for RHEL, PowerShell for Windows) to maintain consistency.
  • Develop automation scripts for repetitive tasks across Windows and Linux.
• Security Enhancements
  • Perform system hardening on RHEL and Windows before and after migration.
  • Apply patches and updates to bring legacy systems to current patch levels before upgrade.
  • Run vulnerability scans and remediation to address issues uncovered during migration.
  • Ensure compliance with internal security policies, CIS Benchmarks, and NIST requirements.
• Troubleshooting and Support
  • Act as the escalation point for migration issues, especially for legacy RHEL 5/6 and older Windows versions.
  • Provide post-migration support for Windows Server and RHEL systems, addressing issues and performance concerns.
  • Troubleshoot OS-level and application problems to ensure high availability and reliability.
• Documentation and Reporting
  • Maintain migration documentation, including steps, configurations, issues, and resolutions.
  • Update system configuration records post-migration (CMDB and related catalogs).
  • Provide regular progress reports and status updates to stakeholders.
• Collaboration and Training
  • Collaborate with networking, database, and application teams to ensure smooth integration.
  • Coordinate with vendors or support services for legacy systems.
  • Communicate downtime, changes, or disruptions to end-users and stakeholders.
  • Develop internal documentation and conduct training sessions; share lessons learned for future upgrades.
• Backup & Disaster Recovery
  • Ensure backup solutions are in place for Windows and RHEL.
  • Update and test disaster recovery plans post-migration to ensure business continuity.
• Post-Implementation Review
  • Conduct post-migration audits to verify functionality, security, and compliance.
  • Identify opportunities for optimization and further enhancements.

Candidate Skills and Qualifications

• Minimum Requirements: Candidates must meet or exceed the minimum requirements; experience will be evaluated for suitability.
• Experience: 8+ years of experience with RHEL and Windows OS.
• Note: Expected Start Date 04/06/2026 and Expected End Date 12/31/2026; may be amended, renewed, or extended.
• Location: This position is Hybrid: On-Site and Telework – Austin, TX 78752.
• Background Check: Required.
• Hours: Normal business hours are Monday through Friday 8:00 AM to 5:00 PM, with possible non-standard hours as requested.