Mainframe Developer with strong expertise in Fiserv PEP and ACH Payments in New York, NY (Onsite)-Contract

Title : Mainframe Developer

Location: New York, NY

Onsite

Job Type: Contract

Job Summary

Experienced Mainframe Developer with strong expertise in Fiserv PEP and ACH Payments Responsible for maintaining and enhancing the PEP application implementing technical and functional changes supporting production issues and ensuring smooth ACH transaction processing

Key Responsibilities

• Support maintain and enhance Fiserv PEP applications
• Develop and implement technical and business driven changes using COBOL JCL DB2 VSAM and related mainframe technologies
• Analyze and resolve ACH processing issues defects and production incidents
• Understand end to end ACH payment flows settlement returns corrections and exception processing
• Work with NACHA file formats ACH rules and transaction processing requirements
• Perform root cause analysis and coordinate resolutions with business and operations teams

Required Skills

• Strong Mainframe development experience COBOL JCL DB2 CICS VSAM
• Handson expertise with Fiserv PEP
• Solid knowledge of ACH payments NACHA formats and ACH processing workflows
• Ability to troubleshoot payment failures processing bottlenecks and settlement reconciliation issues from both technical and functional perspectives
• Strong analytical problem solving and communication skills