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IntegrateUs LLC

Senior Mainframe z_OS Systems Programmer

IntegrateUs LLC · Austin, TXClose: Sep 17th 2025
Term:Full timeWork:Remote
Type:EmployeeContract
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We are seeking a full-time contractor or employee for a Senior Mainframe z_OS Systems Programmer role.

Responsibilities:
  • Provide primary support as the subject matter expert for z/OS operating systems and system components; provide direct technical support as needed in the planning, implementation and testing of releases, upgrades, or changes to z/OS operating system, network, and component software.
  • Provide end user support for assigned Independent Software Vendor (ISV) products such as BlueZone.
  • provide primary administration and end user support for SCLM.
  • Provide input and recommendations for hardware capacity planning.
  • Provide primary administrative support for CICS® and IMS™.
  • Diagnose platform, software and related product issues and follow up with root cause analysis.
  • Analyze performance issues and provide input and recommendations for capacity planning.
  • Provide input and recommendations for system-wide performance tuning to meet required levels of service.
  • Provide input and recommendations for system parameters and system libraries management.
  • Provide support for technical consultation and inquiries from the other IT technical teams.
  • Provide support as technical lead on internal team projects or participate on project teams that impact the z/OS platform.
  • Provide support for Integration-testing new products with existing applications and user procedures.
  • Assist with maintaining and providing technical support for Mainframe Production Control and Support Jobs and monthly Mainframe Job Scheduler.

Required Skills:
  • Experience with z/OS Systems Programming
  • Experience with JES2, z/OS Unix System Services (OMVS), Storage Management Subsystem (SMS)
  • Experience with TSS (Top Secret Security)
  • Experience with performance monitoring to include initial analysis of performance issues
  • Experience with REXX

Preferred Skills:
  • Experience with Informatica Power Exchange 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: • SMP/E (System Modification Program/Extended) • RMF (Resource Measurement Facility) • SMF (System Management Facility) • WLM (Workload Management) • JCL (Job Control Language) • GRS (Global Resource Serialization)
  • Working knowledge of: • VSAM (Virtual Storage Access Method) • TSO (Time Sharing Option)
  • Experience with TLS configuration (certificates, SSL – RSA Keys, SFTP, FTPS)
  • Experience with SCLM (or other similar configuration management tools), specifically configuration and administration of SCLM
  • Experience with CPM for JOBTRAC

Updated on September 10, 2025
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