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.

**Location:** Charlotte, NC
**Duration:** 7 months

**Key Responsibilities:**

+ 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...