Senior Mainframe COBOL Developer (Debit Card Processing)

We are seeking a Senior Mainframe COBOL Developer with strong Debit Card / Payment Processing experience to join a long-term project with M&T Bank. This is a fully remote opportunity for an experienced mainframe professional who has worked on high-volume banking transaction systems supporting debit card authorization and batch processing., * Design, develop, enhance, and maintain COBOL batch and online applications on IBM z/OS Mainframe.

• Support debit card processing applications used for ATM and Point-of-Sale (POS) transactions.
• Develop and maintain COBOL, CICS, JCL, Easytrieve, and Assembler programs.
• Work with IBM MQ for messaging and transaction processing.
• Analyze production issues, troubleshoot batch failures, and provide timely resolutions.
• Collaborate with business analysts, testing teams, and application support teams throughout the software development lifecycle.
• Participate in code reviews, testing, deployment, and production support activities.

If you have a strong background in IBM Mainframe technologies and financial services, we’d love to hear from you., * 10+ years of IBM Mainframe development experience.

• Strong hands-on experience with COBOL and CICS.
• Experience with Assembler (HLASM).
• Strong JCL and Batch Processing experience.
• Experience with Easytrieve / Easytrieve+.
• Experience with IBM MQ / WebSphere MQ.
• Experience with VSAM, DB2, TSO/ISPF, and SDSF.
• Strong debugging and production support experience.

Required Domain Experience

Must have experience in Banking or Financial Services with Debit Card Processing, including one or more of the following:

• Debit Card Authorization
• ATM Transaction Processing
• POS Transaction Processing
• Card Services / Card Issuing
• Payment Processing Systems
• ISO 8583 messaging (preferred)

Preferred Qualifications

• Experience working with large banking clients or payment platforms.
• Experience supporting mission-critical financial transaction systems.
• Strong communication and problem-solving skills.

• Competitive W2 pay up to $70/hour
• Long-term contract opportunity with a leading U.S. financial institution.
• Fast interview process.