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Mid Mainframe IBM z/OS Developer (willingness to learn Assembler)

Deloitte
📍 Rzeszów, Podkarpackie Voivodeship, Poland 💼 Full-time 🕒 Posted March 02, 2026
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Job Description

Description

& Requirements Who we are looking for
  • Good knowledge of IBM z/OS and mainframe concepts
  • Familiarity with COBOL and/or Assembler (willingness to learn Assembler if COBOL is the primary language)
  • 2-3 years of experience in mainframe development, internships, or academic projects
  • Introductory experience or understanding of DB2
  • Awareness of debugging and performance monitoring concepts
  • Basic understanding of memory management and system-level programming principles
  • Ability to analyze problems and learn troubleshooting techniques
  • Ability to work in international environment and international team (global)
  • Good command of English (written and spoken)
  • Located in Poland

    • Nice to have:

  • Exposure to integrating Assembler or COBOL with other technologies (, PL/I or Java)
  • Knowledge of any other programmi...

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    Job Details

    • Location Rzeszów, Podkarpackie Voivodeship
    • Job Type Full-time
    • Category Computer Occupations
    • Posted Date March 02, 2026
    • Application Deadline April 11, 2026