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IntegrateUs LLC

Mainframe Systems Administrator

IntegrateUs LLC · Austin, TXClose: Jan 21st 2026
Term:Full timeWork:Onsite
Type:EmployeeContract
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We are seeking a full-time contractor or employee for a Senior Mainframe Systems Administrator role.

Required Skills:
  • Hands-On Experience with TSS (Top Secret Security)
  • Hands-On Experience with z/OS Administration
  • Experience with JES2, z/OS Unix System Services (OMVS), Storage Management Subsystem (SMS)
  • Experience with TLS configuration (certificates, SSL–RSA Keys, SFTP, FTPS)

Preferred Skills:
  • Experience with REXX
  • Experience with performance monitoring, including initial analysis of performance issues
  • Experience with Informatica PowerExchange Administration
  • Working knowledge for each of the following:
• z/OS Operation
• z/OS Networking – VTAM (Virtual Telecommunications Access Method), TCP/IP (Transmission Control Protocol/Internet Protocol)
  • Working knowledge of each of the following:
• z/OS-centric automated job scheduling and management software (JOBTRAC)
• Terminal Emulator Software (BLUEZONE)
• VTAM Session Manager Software (VTAM/SWITCH)
  • Working knowledge of each of the following:
• SMP/E (System Modification Program/Extended)
• RMF (Resource Measurement Facility)
• SMF (System Management Facility)
• WLM (Workload Management)
  • Working knowledge of each of the following:
• JCL (Job Control Language)
• GRS (Global Resource Serialization)
• VSAM (Virtual Storage Access Method)
• TSO (Time Sharing Option)
  • Experience with REXX

Updated on January 13, 2026
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