9 of 9 COBOL Jobs in London

Consulting Limited is seeking a Mainframe Developer with experience in IBM Mainframe technologies, including CICS, z/OS, and COBOL, to work on critical banking applications. The role involves development, maintenance, and optimization of legacy systems, with a focus on performance tuning and production support. Candidates should have strong skills ...

delivery teams and managing third-party vendors. Strong leadership, communication and decision-making skills. Desirable Technical Background Mainframe technologies (IBM z/OS, Assembler, COBOL or equivalent). Modern application architectures using Java and SQL-based platforms. Experience supporting code conversion and system migration programmes. Test automation, performance testing ...

execution dashboards and go/no-go criteriaTest closure report and evidence catalogueRequired experienceProven test planning leadership on mainframe migrations (e.g. z/OS, COBOL, CICS, DB2, IMS, MQ, Batch/JCL) and complex interface landscapes. Strong understanding of batch cycles, end-of-day processing, data migration/reconciliation ...

safeguards. Document program logic, job flows and test evidence for the team. Requirements Strong experience in Endevor Strong experience in Mainframe Working knowledge of COBOL and JCL #J-18808-Ljbffr ...

30th, 2026Apply Now**Job Description**Infosys is seeking an experienced **Mainframe Developer** with strong expertise in **IBM Mainframe technologies**, including **CICS, z/OS, COBOL, JCL, DB2, IMS, and VSAM**, to support enterprise-critical banking and financial applications. The candidate will work on development, enhancement, maintenance, and modernization of legacy … ensuring system stability, scalability, and performance.**Key Responsibilities*** Develop, maintain, and enhance applications on **IBM z/OS** platform* Design and code programs using **COBOL, JCL, CICS, DB2, IMS, and VSAM*** Support both **online (CICS)** and batch processing environments* Perform debugging, root cause analysis, and resolution of production issues/ ...

About Glover Glover Labs is building the agentic platform for legacy software modernization. The world's largest enterprises run on decades-old mainframe systems — COBOL, RPG, PL/I — processing trillions of dollars daily. These codebases are too complex, too sprawling, too deeply regulated, and too poorly documented for existing ...

Sheffield. The assignment is initially six months with 2–3 days on-site each week. You will work with datasets, VSAM files, DB2 tables, COBOL and JCL, create and run batch jobs, debug abends, write test cases, handle CICS interactions, and document program logic and test evidence for the team. ...

COBOL Lead Sr Programmer10 years of experience in COBOL programming and VAXVMS developmentStrong COBOL programming skillsExtensive experience with VAXVMS operating systemFamiliarity with VAX COBOL compiler and related utilitiesExperience with VAXVMS file systems and database managementTroubleshoot and resolve issues with COBOL applications and VAXVMS systemsProvide technical support to endusersDevelop maintain … enhance COBOL programs and applications running on VAXVMSWrite test and debug COBOL code according to specificationsDevelop and document code according to company standardsProficient in the VAXVMS operating system and its associated toolsFamiliar with VAX COBOL compiler and related utilitiesExperience with VAXVMS file systems and database managementExperience with ICMS tool ...

hosting SMEs, security teams, network teams, and platform engineering groups to ensure migration readiness. Engage with legacy SMEs (e.g., Oracle, WebLogic, IIS, AIX, Solaris, COBOL, GEN) to understand constraints and required technical remediation. Provide technical oversight during migration execution and cutover events. Support troubleshooting and issue resolution across the workstream … role rather than a greenfield cloud service design role. Experience across the following legacy technologies: Java, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL and GEN. Candidates are not expected to have deep expertise across every technology listed. Experience defining migration approaches and leading technical teams through discovery, design ...