Mainframe Developer IBM z/OS willingness to learn Assembler

• 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), Polish at least B2 level


• Located in Poland with valid work permit


• 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

We are looking for an Mainframe Developer to support our clients in system development, maintenance, and modernization initiatives. The ideal candidate will possess a thorough understanding of IBM z/OS, mainframe architecture, and related technologies.

What we offer:

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. ,[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] Requirements: IBM, COBOL, IBM Db2, Java