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# Mainframe Developer

- **Company:** Citigroup Inc.
- **Location:** UK
- **Experience:** Experienced
- **Salary:** £52,281.0
- **Contract:** Permanent contract
- **Skills:** Component-Based Software Engineering, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, IBM DB2, Software Debugging, Job Control Language (JCL), Integrated Development Environments, Mainframes, Systems Architecture, Test Case, Virtual Storage Access Methods
- **Published:** October 24, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5210481573

## About the Role

To meet the growing requirements of the Custody business, we need Mainframe Developer with strong analytical and technical ability., * 3-6 years of strong mainframe experience with COBOL/JCL/CICS/VSAM/ DB2

 * Strong design and development skills in the above mentioned technical stack
 * Financial services domain experience
 * Excellent communication, analytical skills and problem-solving experience for implementation, debugging and testing
 * Work proactively & independently to address project requirements, and articulate issues/challenges with enough lead time to address project delivery risks
 * Able to work as part of a virtual team in a culturally diverse background
 * Good time management skills

Qualification

 * Bachelors/Master Degree either in technology disciplines

## Description

* Write excellent-quality code based on functional requirements, while meeting agile implementation deadlines.
 * Contribute to concept models, design and system architectures.
 * Build, deploy, and test application components in a development environment during the implementation phase working with all layers of the application stack.
 * Work proactively & independently to address project requirements, and articulate issues/challenges with enough lead time to address project delivery risks
 * Providing expertise in technical analysis and solving technical issues during project delivery
 * Code reviews, test case reviews and ensure code developed meets the requirements
 * Component Design/ Coding/ Unit Testing/ Debugging
 * Serve as advisor or coach to new or lower level analysts