Our client is a global leader in IT solutions integration, boasting over 30 years of market experience. They specialize in cloud transformation, digital product engineering, digital manufacturing, post-sale support, sustainable development, ITSM and business process management, as well as software services, digital supply chain, customer intelligence, data, and artificial intelligence. Proudly employing over 800 staff, they have completed more than 1200 projects across 30 countries. The company is built on values such as optimism, realism, support, integration, and innovation. They are currently seeking talented individuals for various roles, offering the opportunity to work in long-term partnerships with corporate clients and growing businesses. If you want to join a team that is shaping the future of technology, our client presents an exceptional career development opportunity in a rapidly evolving industry.

Mainframe (z/OS, Assembler) Developer

We offer:

• Attractive salary
• Full remote work
• Long, multi-year cooperation

Responsibilities:

• Design, write, test, and optimize Assembler code for mainframe systems.
• Maintain and enhance legacy Assembler applications to meet business needs.
• Collaborate with teams to integrate Assembler components with COBOL/Java applications.
• Optimize system performance using tools like IBM RMF and OMEGAMON.
• Troubleshoot and resolve complex system issues using advanced debugging tools.
• Mentor junior developers and lead knowledge-sharing sessions.
• Contribute to system modernization strategies and decisions.

Requirements:

• Expertise in Assembler (HLASM) programming and mainframe systems (IBM z/OS, MVS, CICS, DB2)
• Experience with performance tools (IBM Debug Tool, Abend-AID, OMEGAMON)
• Strong knowledge of memory management and system programming
• Experience integrating Assembler with COBOL, PL/I, or Java
• Ability to troubleshoot and resolve production issues
• Minimum 4-5 years of experience in Assembler development, with at least 3 years in mainframe systems
• IBM Certified System Programmer and z/OS Mastery Certifications are a plus
• Very good command of English and Polish