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Dutech Systems Logo Dutech Systems · IT - Administration

Mainframe z/OS Systems Programmer

United States, Austin · Job Posted December 08, 2025
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Job Description

We are seeking an experienced z/OS Systems Programmer to join our IT team. The ideal candidate will have strong technical expertise in z/OS systems programming, security administration, performance monitoring, and mainframe system management. You will work closely with cross-functional teams to support and optimize z/OS environments, ensure system stability, and implement efficient solutions.

Job Responsibility

  • Perform z/OS Systems Programming tasks, including configuration, installation, and maintenance of z/OS operating environments
  • Manage JES2, z/OS Unix System Services (OMVS), and Storage Management Subsystem (SMS)
  • Administer and support TSS (Top Secret Security), ensuring appropriate access control and security compliance
  • Monitor system performance and perform initial analysis of performance issues to provide solutions and optimizations
  • Write and maintain REXX scripts to automate system tasks and processes
  • Collaborate with infrastructure and application teams to configure and maintain TLS (certificates, SSL, RSA Keys, SFTP, FTPS) for secure communication
  • Utilize SMP/E for system modification and management of z/OS environments
  • Create and maintain system-level documentation, technical designs, and support artifacts

Requirements

  • 5+ years of experience in z/OS Systems Programming
  • Strong knowledge of JES2, OMVS, SMS, TSS (Top Secret Security), performance monitoring, and REXX scripting
  • Excellent problem-solving and analytical skills with the ability to diagnose and resolve technical issues
  • Strong communication skills, able to work effectively with technical teams and business stakeholders

Nice to have

  • Experience with Informatica Power Exchange Administration
  • Working knowledge of z/OS Operation, z/OS Networking (VTAM, TCP/IP)
  • Experience with automated job scheduling tools such as JOBTRAC, terminal emulators like BLUEZONE, and VTAM Session Manager Software (VTAM/SWITCH)
  • Knowledge of performance and resource management tools such as RMF, SMF, WLM, and system resource serialization with GRS
  • Familiarity with data storage methods such as VSAM, and Time Sharing Option (TSO)
  • Experience in configuration management tools like SCLM, including administration and configuration
  • Experience working with CPM for JOBTRAC for job control and automation management
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