​Prestige Development Group (PDG) is seeking a contract UNIX System Administrator to support the administration, maintenance, and security of AIX/IBM and Red Hat Enterprise Linux (RHEL) systems for the Sacramento Municipal Utility District (SMUD). This role ensures the reliability and efficiency of mission-critical UNIX environments and supports system migrations.

• ​Location: 100% Remote
• ​Job Type: Contract
• ​Experience (Mandatory): Minimum five (5) years’ experience with server infrastructure in an Enterprise environment, including five (5) years specifically with IBM AIX and its components (PowerHA, HMC, VIOS, PowerVM).
• ​Focus: AIX lifecycle management, virtualization (PowerVM), security hardening (NIST/compliance), administration of RHEL systems, and supporting migrations to x86 or Cloud environments.

​Key Responsibilities: AIX Focus and Security Hardening

​The administrator’s primary duties center on advanced administration of the IBM Power Systems environment and security compliance.

• ​AIX/IBM Administration: Perform day-to-day administration, maintenance, upgrades, and troubleshooting of AIX systems, VIOS, HMC’s, and Managed Systems.
• ​Virtualization & HA: Provision and manage AIX virtual server builds using PowerVM technology. Administer AIX LPARs configured as part of a PowerHA cluster.
• ​Lifecycle Management: Manage IBM Power lifecycle migrations, including planning, execution, and validation.
• ​Security & Hardening: Conduct vulnerability assessments and implement remediation strategies to secure AIX/IBM environments. Hardening Operating Systems to meet information security standards.
• ​RHEL and Migrations: Administer, maintain, upgrade, and troubleshoot Red Hat Enterprise Linux (RHEL) systems. Support application migrations from AIX/IBM platforms to RHEL on x86 or Cloud environments.
• ​Documentation: Maintain up-to-date documentation and technical diagrams, ensuring accurate recording of all system changes and integrations (including CMDB alignment).

​Mandatory and Preferred Qualifications

• ​Mandatory Technical Experience (5+ Years):
  • ​IBM AIX (Administration, patching, building).
  • ​PowerHA, HMC, VIOS, & Managed Systems.
  • ​IBM PowerVM virtualization environment.
  • ​Troubleshooting of AIX environments.
  • ​System build processes in a virtualized environment.
  • ​Monitoring capabilities in a UNIX environment.
  • ​Hardening Operating Systems to meet information security standards.
• ​Preferred Skills (Automation & Tooling):
  • ​Experience with shell scripting/programming.
  • ​Experience with Ansible.
  • ​Experience with IBM Big Fix Patch Management and IBM Tivoli Monitoring.
  • ​Experience administering Red Hat Enterprise Linux (RHEL) in an enterprise environment.
  • ​Experience with physical server hardware break/fix.