Senior Mainframe Engineer - Fiserv PEP & ACH

Capgemini; New York (NY); On-site; USD 80,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, vision benefits

401(k) retirement savings

Job summary

Capgemini is seeking an experienced Mainframe Developer to maintain and enhance the Fiserv PEP application and support ACH payments processing. You will work across COBOL, JCL, DB2, CICS and VSAM in a high-volume, production-support environment.

The role combines strong technical mainframe skills with deep functional knowledge of ACH payment processing, including credits, settlements, returns, and corrections.

Qualifications

• Strong hands-on experience with COBOL, JCL, DB2, CICS and VSAM.
• Proven expertise with Fiserv PEP and ACH payments processing.
• Experience supporting large-scale mainframe applications.

Responsibilities

• Support, maintain, and enhance the Fiserv PEP application.
• Develop technical and business-driven enhancements.
• Ensure stability, performance, and reliability of the role's applications.
• Provide production support and issue resolution.
• Design, develop and maintain COBOL/JCL/DB2/CICS/VSAM solutions.
• Assist in upgrades, system improvements, and incident management.

Skills

Mainframe development

COBOL

JCL

DB2

CICS

VSAM

Fiserv PEP

ACH payments

Analytical skills

Communication

Job description

Capgemini is seeking an experienced Mainframe Developer to maintain and enhance the Fiserv PEP application and support ACH payments processing. You will work across COBOL, JCL, DB2, CICS and VSAM in a high-volume, production-support environment.

The role combines strong technical mainframe skills with deep functional knowledge of ACH payment processing, including credits, settlements, returns, and corrections.