We're looking for aSenior Mainframe Developerwith deep COBOL expertise to help design, enhance, and modernise our high-volume, business-critical applications. This is a unique opportunity to combinetraditional mainframe engineering excellence with modern, AI-first development practices .What you'll be doingDesign, develop, and supportCOBOL and CAP COBOLapplications onz/OS, supporting large-scale, high-volume transaction processingMaintain and enhanceIMS online and batch systems, ensuring high availability, performance, and resilienceBuild and support data processing solutions usingDB2, IMS DB, and sequential file structuresAct as asubject matter expertin mainframe development, helping define coding standards, best practices, and modernisation approachesEnsure compliance with internal standards andregulatory obligationsacross all development activitiesDrive innovation by applying anAI-first approachto automate coding, testing, data mapping, orchestration, and documentationWhat you'll bringStrong hands‐on experience inCOBOL developmentwithin large enterprise or banking environmentsExposure to or experience withCAP COBOLin production systemsProven experience working withIMS DB, including data access, schema design, and integrationSolid understanding ofz/OS mainframe environmentsExperience withEndevorfor source code managementFamiliarity with modern tooling such asGit and Bitbucket#J-18808-Ljbffr