FIS, a leading fintech company, is seeking a z/OS Mainframe Application Developer to join their team in Sydney, Australia. This role focuses on the development and maintenance of the P1C credit card issuing application, requiring expertise in mainframe technologies including COBOL, Assembler, and JCL. The position involves designing, developing, and testing enhancements to the P1C application, handling both scheme compliance updates and client-requested changes. The ideal candidate will have strong knowledge of DB2 and SQL, experience with z/OS performance tuning, and the ability to support multiple production instances globally. FIS offers a competitive benefits package and the opportunity to work with cutting-edge fintech solutions. The role combines technical expertise with business domain knowledge in financial services, particularly in credit card issuing systems. The company promotes an inclusive and diverse work environment, providing resources for personal and professional growth. This position is perfect for a mainframe developer looking to make an impact in the financial technology sector while working with a global leader in the industry.