Mainframe Software Engineer I

You would be joining a team that is a dynamic combination of internal and external members who work together through strong client engagement and collaboration. By bringing together diverse expertise and perspectives, the team delivers a cutting-edge product designed to meet the evolving needs of our clients and their customers.

What you will be doing

As a Mainframe Software Engineer, you will contribute to the development, enhancement, and support of critical card management and payment processing solutions. You will design, develop, test, and maintain mainframe applications that support transaction processing, reconciliation, settlement, compliance, and modernization initiatives.

Success in this role requires collaboration with cross-functional teams, and a commitment to delivering high-quality, secure, and reliable solutions. You will play a key role in regulatory compliance, product enhancements, production support, and continuous improvement efforts.

• Develop, enhance, and maintain mainframe applications using COBOL and related technologies.

• Design and execute comprehensive unit tests to validate application functionality and performance.

• Collaborate with business, product, quality assurance, and engineering teams throughout the development lifecycle.

• Conduct peer code reviews and contribute to continuous improvement of development standards.

• Participate in technical design discussions, code walkthroughs, and solution reviews.

• Create and maintain technical documentation, test evidence, and change records to support audit and compliance requirements.

Are you curious, motivated, and forward-thinking? At FIS you’ll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun., * COBOL Programming Fundamentals. (1 - 3 years experience)

• IBM z/OS Mainframe Knowledge.

• Foundational knowledge with IMS DB/DC, CICS, VSAM, IMS, DB2, and MQ Series.

• Knowledge of software development lifecycle practices, testing methodologies, and change management processes.

• Strong analytical, troubleshooting, and problem-solving capabilities.

• Excellent verbal and written communication skills with the ability to work effectively across teams.

Bonus if you have

• Knowledge of Agile or Scrum delivery methodologies.

• Experience within card payments, debit processing, or financial services domains.

• Exposure to payment processing, transaction management, reconciliation, or settlement systems.

• Familiarity with modernization initiatives, API integration, and legacy system transformation.

• Experience supporting compliance, security remediation, and vulnerability management programs.

• Attractive benefits including private medical cover, dental cover, and travel insurance.

• A variety of career development tools, resources and opportunities.

• The chance to work on some of the most challenging, relevant issues in financial services & technology.