Junior Developer/Trainee for Assembler - Mainframe IBM z/OS (willingness to learn Assembler)

Deloitte is hiring for a junior developer role focused on IBM z/OS mainframe technologies, including Assembler and COBOL. The position involves joining an international development team and working on mainframe environments.

• 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

• 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

Located in Poland