Sr Mainframe Developer

Job Summary
The Sr Mainframe Developer role is pivotal in supporting and enhancing core financial systems, with a strong emphasis on ACH processing and Fiserv integrations. The ideal candidate will drive mission-critical projects leveraging deep expertise in COBOL, DB2, JCL, and VSAM, ensuring robust transaction processing and seamless integration of Pep+ (PEP Plus) solutions. This position is instrumental in maintaining the reliability and efficiency of payment systems across the enterprise.

Emphasis on Skills
Success in this role requires advanced proficiency in COBOL and DB2, with hands-on experience in JCL and VSAM. Fiserv integration, particularly with Pep+, and solid ACH domain knowledge are essential to meet technical and business objectives.

Key Responsibilities

- Design, develop, and maintain mainframe applications using COBOL and DB2
- Build and optimize batch processes with JCL and VSAM
- Implement and enhance Fiserv integrations, focusing on Pep+ (PEP Plus)
- Provide expert support for ACH payment systems, ensuring compliance and reliability
- Collaborate with cross-functional teams to deliver high-quality software solutions
- Troubleshoot and resolve complex technical issues within mainframe environments
- Participate in code reviews and promote best practices in mainframe development




Recruiter Insights
This role offers the opportunity to work on high-impact financial infrastructure with a focus on modernizing payment processing. Competitive advantages include exposure to industry-leading Fiserv solutions, a stable work environment, and the chance to collaborate with seasoned mainframe and payments professionals. Experience with CICS or MQ and familiarity with Agile methodologies are preferred but not required, providing flexibility in candidate selection.

Candidate Insights
Candidates will find this role rewarding due to its direct influence on critical financial operations and the opportunity to work with cutting-edge ACH and Fiserv technologies. The position provides a platform for career growth in the financial technology sector and the ability to contribute to vital payment innovations. Exposure to large-scale, enterprise-level projects and a collaborative, technically advanced team environment further enhance the role’s appeal.