z/OS Infrastructure Support / Administrator (f/m/d)

Date: 20-Sep-2021

Location: Prague, CZ

Company: Deutsche Börse Group

Field of activity

The Clearstream IT Operations department is operating for the Deutsche Börse AG the IT-infrastructure of the order routing procedures for the trading floor exchanges (Xontro) and providing the connected systems with real-time stock data for further processing.   

The IT-infrastructure is based on the IBM mainframe processors, which are also the platform for clearing and settlements, vault management and corporation-wide SWIFT message traffic. The Production Support unit is also operating the mainframe applications for the Clearstream Banking Frankfurt AG, Clearstream Banking Luxembourg and the Brain Trade.


  • Infrastructure Support CPU, Disk, Tape, Mainframe
  • Independently recognizing mainframe z/OS, zLinux, OpenShift on z problems
  • Common mainframe system programmer tasks z/OS, zVM, Hardware, zLinux
  • Planning and installing z/OS, zVM systems software components
  • OpenShift on z support, python, Jenkins
  • z/OS - SMP/E Installation / System Exits
  • Mainframe z/OS REXX scripts


Qualifications/required skills

  • University degree in the IT-area or comparable education
  • Profound Experience with z/OS, zVM systems
  • Experience with Broadcom Mainframe Products
  • Knowledge of cloud technology, such has OpenShift, Jenkins Pipelines would be an asset
  • JCL knowledge and experience with CA7 or comparable scheduling tools
  • Good skills in TSO, ISPF, CMS, JES2, VTAM, TCP/IP
  • Knowledge of the following mainframe tools TSO/ISPF, REXX, CA1, CA11, Beta92, RMS, LDMS
  • Team player with good communication skills, highly motivated and flexible
  • Outlook and Microsoft Office skills
  • Proficiency in written and spoken English. German would be desirable