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Cracow, Poland
2026-06-18
Deloitte
Eastern Europe
Junior Developer/Trainee for Assembler - Mainframe IBM z/OS (willingness to learn Assembler) | BDS
Role Description
**Description \& Requirements**
**Kogo szukamy**
* 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)
* **1-2 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 and Polish**
(written and spoken)
* **Located in Poland**
**Nice to have:**
* Exposure to integrating Assembler or COBOL with other technologies (e.g., PL/I or Java)
* Knowledge of any other programming languages, programming concepts
* Relevant coursework, certifications, or training in mainframe or z/OS technologies
**Twoja przyszła rola**
* Go through the assembler training path as well as mainframe environment training path to become member of international development team
* Assist in developing, testing, and maintaining
**Assembler and COBOL**
code in mainframe environments
* Support enhancements and maintenance of existing legacy applications
* Collaborate with experienced developers and cross-functional teams on system integration tasks
* Learn to use performance monitoring and debugging tools to identify and resolve issues
* Participate in incident analysis and problem resolution under guidance from senior team members
* Take part in system modernization initiatives and gain exposure to new mainframe technologies
* Continuously build technical skills through mentorship, training, and hands-on experience
**To oferujemy**
* A budget to spend on benefits that suit you, on top of your salary.
* Open colleagues, an environment that encourages proactivity, creativity, cooperation and openness.
* Contribution to practice development by shaping fit-for-purpose approaches and methodologies for Deloitte clients.
* Fast-paced development in a dynamic, high growth environment.
* Work with Deloitte clients locally and globally, delivering high-impact solutions to complex challenges and helping them drive exceptional performance.
**Ścieżka rekrutacji**
* Stage 1 - Send your CV in pdf format in English.
* Stage 2 - Participate in the online assessment
* Stage 2 - Join an HR screening
* Stage 3 - 2 interviews: technical one and on the business side