Systems Administrator – UNIX / LINUX

McCoy Corporation•San Marcos, TX

23h

About The Position

The Systems Administrator – UNIX / LINUX supports, maintains, and optimizes IBM Power/AIX environments in a mission-critical enterprise setting. This role is responsible for system availability, performance, security, and lifecycle management across development, test, and production environments.

Requirements

5+ years of hands-on experience administering UNIX in an enterprise environment.
Strong knowledge of IBM Power Systems architecture and virtualization.
Experience with VIOS, LPAR management, and NIM.
Proficiency in UNIX shell scripting (ksh, bash) and cron jobs.
Solid understanding of TCP/IP networking and storage concepts.
Experience with system monitoring, performance tuning, and troubleshooting.
Familiarity with backup solutions (e.g., TSM/Spectrum Protect or equivalent).
Experience with High Availability solutions (PowerHA, HACMP).
This position requires travel with overnight stays.
Must have a current driver’s license and auto liability insurance.
Must be regularly available and willing to work on average 40 hours per week during business hours or as the employer determines are necessary or desirable to meet business needs.
Must maintain regular and acceptable attendance at such level as is determined by management.

Nice To Haves

Experience with automation/configuration tools (Ansible, Chef, etc.).
Familiarity with cybersecurity frameworks, scanning tools, or audit compliance, preferred.
Experience with scripting languages beyond shell (Python, Perl), preferred.

Responsibilities

Installs, configures, administers, and supports IBM AIX operating systems on Power hardware.
Installs, configures, administers, and supports different LINUX operating systems.
Performs system provisioning, upgrades, patching, and firmware management.
Manages LPARs, VIOS, and PowerVM virtualization.
Monitors system performance, capacity, and availability; troubleshoots complex issues.
Implements and maintains system security, hardening, and compliance controls.
Automates administrative tasks using shell scripting (ksh/bash).
Support backup and recovery processes; participate in disaster recovery planning and testing.
Collaborates with application, storage, network, and security teams.
Provides on-call support and responds to incidents as required.
Maintains system documentation and operational procedures.
Other assignments and duties as assigned by management.
Attends and participates in team meetings and training sessions.