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Fully Remote, UK-Based) - Up to £700 a day We are looking for a highly experienced z/OS Systems Programmer to join a contract assignment supporting enterprise-scale IBM Mainframe infrastructure. You'll be responsible for the installation, customization, maintenance, and troubleshooting of z/OS and related IBM products in a complex, high-availability environment. Key Responsibilities Install … upgrade, and maintain z/OS and related subsystems (eg, JES2, SMP/E, RACF, TSO, USS). Maintain and support IBM Middleware products (eg, DB2, CICS, MQ Series, IMS - if required). Manage IPLs, parmlib concatenations, SMF, SDSF, and ISPF customizations. Handle storage management (DFSMS, HSM, tape libraries) and performance tuning. Assist with disaster recovery testing, capacity planning, and … line support and mentor junior system engineers where needed. Experience 5+ years' hands-on experience as a z/OS Systems Programmer in a production environment. Deep knowledge of IBM Mainframe architecture and utilities. Strong experience with SMP/E, JES2, parmlib, HCD, and z/OSMF. Please apply immediately for further details & a confidential discussion. More ❯

combine pieces of information to produce a better answer. Requirements: At least 10 years of experience with z/OS Processing Environment. At least 7 years of experience in IBM coding and development, including extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Coding experience in a multitasking, reentrant and/or sysplex environment. Experienced creating … functional designs/specifications from business requirements. Experience with IBM Mainframe environment (TSO/ISPF, JCL etc.). Excellent knowledge of z/OS structure and logic including knowledge of z/OS operating system internals. Experience in developing working code utilizing low-level operating system functions to accomplish a desired task. In depth experience in troubleshooting complex problems at More ❯