8 of 8 Mainframe Developer Jobs in England

Mainframe Developer – CICS / z/OS

Location
Greater London, England, United Kingdom
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/… 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 ...

Hybrid Mainframe Developer — CICS / z/OS Expert

Location
Greater London, England, United Kingdom
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 ...

Mainframe Developer

Location
Chester, England, United Kingdom
seeking an experienced Mainframe Developer with expertise in COBOL, JCL, and CICS to join our team. The ideal candidate will have a strong background in batch flow analysis and development, as well as experience in the billing and pricing domain. Experience in handling rewrite and migration projects … also highly desirable. Key Responsibilities: Design, analyze, and develop solutions using mainframe technologies, primarily COBOL, JCL, and CICS. Conduct batch flow analysis and implement efficient batch processing solutions. Work closely with stakeholders to gather requirements and ensure the successful implementation of billing and pricing systems. Participate in rewrite ...

Mainframe Developer - COBOL/JCL/CICS for Billing & Migrations

Location
Chester, England, United Kingdom
Ascendion seeks an experienced Mainframe Developer to design and implement solutions using COBOL, JCL, and CICS in a billing and pricing environment. The role emphasizes batch flow analysis, efficient processing, and strong collaboration with stakeholders. Candidates should be adept at handling rewrite and migration projects, ensuring minimal disruption … while delivering reliable, high-performance mainframe applications. #J-18808-Ljbffr ...

Assembler Mainframe Developer

Location
Greater London, England, United Kingdom
IZOT product line includes BMC’s Intelligent Z Optimization & Transformation products, which help the world’s largest companies to monitor and manage their mainframe systems. The modernization of mainframe is the beating heart of our product line, and we achieve this goal by developing products that improve … developer experience, the mainframe integration, the speed of application development, the quality of the code and the applications’ security, while reducing operational costs and risks. We acquired several companies along the way, and we continue to grow, innovate, and perfect our solutions on an ongoing basis. BMC Software ...

Mainframe Consultant/ Developer

Location
Greater London, England, United Kingdom
Greetings...!!! We have urgent position Mainframe Consultant/Developer @ London or Sheffield, UK – Hybrid- Contract, could you please find the JD below and Role: Mainframe Consultant/Developer Location: London or Sheffield Type of role: Contract (Initially 6 months) Mode of Work: Hybrid … production support and add 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 ...

Mainframes Developer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
The Role Software Engineer will be part of the Engineering Team in Core Banking Platform, who will be responsible to building new software and making changes to the existing ones as per the business requirement. ...

Hybrid Mainframe Consultant & Developer – COBOL/JCL

Location
Greater London, England, United Kingdom
Consult is urgently seeking a Mainframe Consultant/Developer for a hybrid contract role based in London or 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 ...