**Introduction** A career in IBM Consulting is built on long-term client relationships and close collaboration worldwide. You’ll work with leading companies across industries, helping them shape their hybrid cloud and AI journeys. With support from our strategic partners, robust IBM technology, and Red Hat, you’ll have the tools to drive meaningful change and accelerate client impact. At IBM Consulting, curiosity fuels success. You’ll be encouraged to challenge the norm, explore new ideas, and create innovative solutions that deliver real results. Our culture of growth and empathy focuses on your long-term career development while valuing your unique skills and experiences. **Your role and responsibilities** Key Responsibilities: * Application Development & Maintenance * Design, code, test, and implement changes or enhancements in the Customer/1 application. * Work with mainframe technologies such as COBOL, JCL, DB2, CICS, and VSAM. * Requirement Analysis * Collaborate with business analysts and end-users to gather functional requirements. * Translate business needs into technical specifications. * System Configuration * Configure Customer/1 modules to meet specific customer or business requirements. * Implement changes in pricing, billing, order management, and customer data processing. * Testing & Quality Assurance * Create and execute unit tests and integration tests. * Participate in user acceptance testing (UAT) and resolve defects. * Production Support & Troubleshooting * Monitor batch jobs and online transactions. * Investigate and resolve incidents, performance issues, and data discrepancies. * Performance Optimization * Review and improve code and database queries to ensure efficient execution. * Optimize batch processing schedules. * Documentation * Maintain technical documentation for system changes, configurations, and processes. * Collaboration * Work closely with project managers, QA teams, infrastructure teams, and business stakeholders. * Liaise with vendors or third-party support for Customer/1-related issues. * Compliance & Standards * Ensure that all development follows organizational coding standards, change management processes, and regulatory requirements. * Continuous Improvement * Recommend and implement improvements in processes, tools, and the Customer/1 application based on user feedback. **Required technical and professional expertise** • Core zOS Skills: Exposure to core zOS skills, including VSAM, JCL, REXX, TSO/ISPF, and Mainframe tools, enabling effective application development and support. • Programming Languages: Proficiency in at least one language skill, such as COBOL, PL/1, or Assembler, to design, code, test, and implement application programs. • Database Management: Experience working with at least one database skill, such as DB2 or IMS-DB, to support application development and maintenance. • Transaction Processing: Exposure to transaction processing skills like CICS or IMS-DC, facilitating effective application support and solution delivery. • Technical Problem-Solving: Ability to apply technical expertise to resolve technical issues and improve application performance in the zOS environment. **Preferred technical and professional experience** • Proficiency in Multiple Languages: Exposure to multiple programming languages, such as COBOL, PL/1, or Assembler, to design, code, test, and implement application programs. • Additional Database Skills: Experience working with multiple database skills, such as DB2 and IMS-DB, to support application development and maintenance. • Advanced Transaction Processing: Exposure to advanced transaction processing skills like CICS and IMS-DC, facilitating effective application support and solution delivery. IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.