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# Mainframe Application Developer - Banking & Payments

- **Company:** Computer Task Group, Inc
- **Location:** Charlotte, NC, United States
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Microsoft Access, IBM AIX, Unix, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Software Debugging, Payment Systems, Job Control Language (JCL), IBM Mainframe, Rexx (Programming Language), Unix Shell, Mainframes, Software Engineering, Virtual Storage Access Methods, Tso/ispf, Scripting, Information Technology, ISO 20022 Standard
- **Published:** September 11, 2026
- **Apply:** https://www.thejobnetwork.com/job/dcf5d191-e504-4e3e-b662-afc977805fe3/mainframe-application-developer-banking-payments-cobolzos

## About the Role

CTG is seeking an experienced Mainframe Application Developer with strong Banking & Payments expertise to support enterprise payment processing applications in an IBM zOS environment. This role requires deep experience with COBOL, UNIX/AIX, scripting, and mission-critical banking transaction systems., * Strong COBOL development experience in IBM Mainframe zOS environments.

 * Experience with UNIX/AIX and scripting technologies.
 * Knowledge of VSAM, JCL, REXX, TSO/ISPF, DB2, IMS-DB, CICS, and IMS-DC.
 * Hands-on experience with banking and payment processing systems.
 * Familiarity with ISO 20022, SWIFT MT/MX messaging, RTP, FedNow, and Fedwire.
 * Strong troubleshooting and production support skills.

Preferred Experience:

 * 5+ years of mainframe application development experience in banking or financial services.
 * Experience supporting high-volume, mission-critical payment systems.
 * Knowledge of financial messaging standards and wire transfer operations.

Education:

 * Bachelor's degree in Computer Science, Information Technology, or related field preferred, or equivalent experience.

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

## Description

* Develop, maintain, and support mainframe applications in IBM zOS environments.
 * Support banking and payment platforms including FedNow, Fedwire, RTP, SWIFT MT/MX, ISO 20022, and wire transfer systems.
 * Work with ACI MTS, ACI UPF, Fiserv EPP, and Swift Alliance Access (SAA).
 * Perform coding, testing, debugging, production support, and system enhancements.
 * Develop and maintain JCL, VSAM, REXX, and UNIX shell scripts.
 * Collaborate with technical and business teams to deliver payment system solutions.
 * Participate in SWIFT yearly standards upgrades and payment modernization initiatives.


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