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# Mainframe Developer - CICS / z/OS

- **Company:** N Consulting Ltd
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Continuous Integration, IBM DB2, Software Debugging, Endevor, Job Control Language (JCL), IBM Mainframe, IBM WebSphere MQ, Mainframes, Performance Tuning, Scrum Methodology, SQL Databases, Virtual Storage Access Methods, Z/OS, Software Troubleshooting, File-aid, Cloud Integration, Control M
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815194555-mainframe-developer--cics--zos

## About the Role

schedulers such as **Control-M / CA7 / TWS*** Participate in application modernization initiatives including API enablement and cloud integration* Collaborate with business analysts, testers, architects, and offshore teams* Follow Agile/Scrum methodology and CI/CD practices**Required Skills*** Strong hands-on experience with: + IBM Mainframe / **z/OS** + **CICS Transaction Server** + COBOL, JCL + DB2 / IMS + VSAM + MQ Series* Experience with tools: + Endevor / ChangeMan + File-AID + Expeditor / Xpediter + Abend-AID + SDSF / SPUFI / QMF* Strong troubleshooting and performance tuning skills* Experience in production support and incident management**Job Title: Mainframe Developer - CICS / z/OS** **Location: London, UK (Hybrid)** **Experience: 5+ Years** **Employment Type: Contract**
#J-18808-Ljbffr

## Description

LocationLondon, United Kingdom# Mainframe Developer - CICS / z/OS at N Consulting LtdLocationLondon, United KingdomSalary£300 - £350 /dayJob TypeContractDate PostedApril 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 mainframe systems while 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/abends* Optimize SQL queries and DB2 performance tuning* Work with
schedulers such as **Control-M / CA7 / TWS*** Participate in application modernization initiatives including API enablement and cloud integration* Collaborate with business analysts, testers, architects, and offshore teams* Follow Agile/Scrum methodology and CI/CD practices**Required Skills*** Strong hands-on experience with: + IBM Mainframe / **z/OS** + **CICS Transaction Server** + COBOL, JCL + DB2 / IMS + VSAM + MQ Series* Experience with tools: + Endevor / ChangeMan + File-AID + Expeditor / Xpediter + Abend-AID + SDSF / SPUFI / QMF* Strong troubleshooting and performance tuning skills* Experience in production support and incident management**Job Title: Mainframe Developer - CICS / z/OS** **Location: London, UK (Hybrid)** **Experience: 5+ Years** **Employment Type: Contract**


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