IBM Mainframe Infrastructure SME

IBM Mainframe Infrastructure SME (CICS / COBOL / IBM Z Series) - London based (99% Remote) - Inside IR35 (No Umbrella fees - PAYE - £450/£600 per day) The Role: We are seeking an experienced IBM Mainframe Infrastructure Technical Specialist to support a major UK banking organisation operating on IBM Z Series and above infrastructure. This is a production stability and support SME role, focused on maintaining and optimising a complex legacy mainframe estate within a regulated banking environment. You will be working primarily across IBM CICS Transaction Server environments, ensuring continuous availability and performance of mission-critical banking systems. Key Responsibilities Support IBM Z Series mainframe infrastructure in a live banking environment Manage CICS regions (TORs, AORs, FORs) Maintain and support IBM CICS Transaction Server environments Ensure 24x7 system availability and operational resilience Troubleshoot and resolve production incidents Work with: IBM Db2 IBM MQ Use JCL, REXX, and Assembler for support and diagnostics Maintain high stability across core banking transaction systems To apply you should have the following skills and experience: Strong experience with IBM Z Series / IBM mainframe infrastructure (Z/OS or above) Deep expertise in: IBM CICS Transaction Server COBOL IBM Db2 IBM MQ Strong background in legacy regulated banking environments Infrastructure SME experience (not application development focused) Proven ability to support and stabilise production mainframe systems In short: Work on critical IBM Z mainframe banking systems Highly remote role (99% remote working) Long term contract security potential within a major financial institution High impact infrastructure SME position Apply Now If you’re a Mainframe SME who thrives in production environments and knows how to keep complex CICS estates running smoothly, we’d like to hear from you. Stuart Graham Click Recruitment (url removed)