https://jobs.co.uk/job/mainframe-datacom-engineer-ibm-z-cbsbutler-holdings-limited-trading-as-cbsbutler--e9b0be12-0013-49a4-9d5f-fab6665b4a9b RSS feed for Mainframe Datacom Engineer - IBM Z at CBSbutler Holdings Limited trading as CBSbutler. en-gb Wed, 09 Sep 2026 15:15:26 GMT https://jobs.co.uk/job/mainframe-datacom-engineer-ibm-z-cbsbutler-holdings-limited-trading-as-cbsbutler--e9b0be12-0013-49a4-9d5f-fab6665b4a9b https://jobs.co.uk/job/mainframe-datacom-engineer-ibm-z-cbsbutler-holdings-limited-trading-as-cbsbutler--e9b0be12-0013-49a4-9d5f-fab6665b4a9b Wed, 09 Sep 2026 11:53:51 GMT Location: Reading | Salary: 450.00-450.00 Daily | Type: Contract | Mainframe Engineer - Datacom IBM Z+ 3 month initial contract + expected extensions+ Paying upto 500 per day - Inside IR35+ Fully remote Role OverviewOur client is seeking an experienced Mainframe Datacom Engineer to support and enhance critical banking applications within a large-scale IBM Z / z/OS environment.You will be responsible for the administration, support, optimisation and modernisation of Broadcom Datacom databases, working closely with application development, infrastructure, DBA and international teams across Spain and Latin America.Spanish language skills are highly desirable.Key ResponsibilitiesAdminister and support Broadcom Datacom / CA Datacom databases on z/OS.Perform database provisioning, configuration, monitoring, capacity planning and performance tuning.Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities.Monitor availability and proactively resolve database and application performance issues.Support incident, problem and change management processes.Support IBM Z infrastructure, batch processing and associated mainframe technologies.Work with JCL, TSO/ISPF, SDSF, CICS, VSAM and RACF.Support COBOL-based applications and t... Contract