Systems Admin - Unix/Linux

This is a full-time, direct hire opportunity. This role will be onsite 5 days per week in San Marcos, TX. Candidates must live within 50 mile radius. 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). Supports backup and recovery processes; participates 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. Will require occasional travel (1-2 times per quarter). Education & Experience 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). 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. Will consider candidates with Red Hat Enterprise Linux (RHEL) experience and minimal UNIX. Physical Requirements Prolonged periods sitting at a desk and working on a computer. Must be able to frequently lift and/or move 10 pounds and occasionally lift up to 50 pounds at times. Standard office hours apply with occasional weekends and holidays. 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. The noise level in the work environment is usually moderate. #J-18808-Ljbffr The HT Group