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# Senior Software Engineer (Mainframe/Cobol)

- **Company:** Mastercard
- **Location:** O'Fallon, MO, United States
- **Experience:** Expert
- **Salary:** $115,000.0 - $184,000.0
- **Contract:** Permanent contract
- **Skills:** Software Applications, Customer Information Control System (CICS), COBOL (Programming Language), Software Quality, IBM DB2, Linux, Job Control Language (JCL), IBM System Z, Mainframes, Software Tools, Software Engineering, Z/OS, Ibm Z/vm, Microfocus
- **Published:** May 26, 2026
- **Apply:** https://www.juju.com/job/00000000g2s9te

## About the Role

Minimum 4 Years of Mainframe development experience

 * Core Payments of MasterCard is involved in developing Authorization, Clearing, Debit and other major functionalities for MasterCard. Analyze and create cutting edge solutions for Core Payments teams. Proficient with COBOL, DB2, CICS, JCL,PROC,Microfocus COBOL, TWS Scheduler and DB2 LUW.

> Experience with mainframe software development tools and platforms (z/OS, z/VM, z/Linux, IBM System z)

 * Extensive Hands on Experience with Mainframe Software development

 * Hands on Experience with Microfocus COBOL, DB2 LUW and TWS scheduler

 * Coordinate with other groups including vendors to ensure success of the project., > Strong ability and experience in driving the technical roadmap for AODS and Clearing application

All About You

 * Experience in Batch and online development

 * Experience in CI and CD

 * Involved and spearhead quality initiatives

 * Result oriented individual Automation experience and Code Quality

 * Strong Communicator.

 * Ability to guide people to implement the right solution

## Description

_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._, * Develops software which is high on performance and meets business requirements.

 * Maintain and present project related metrics reporting for management review

 * Lead initiatives for automation, defect metrics and overall quality initiatives

 * Handle coordination between teams based in various locations

> Creating high-performance, mission-critical applications

> Analyzing Business requirements and developing software solutions

> Ensuring software applications meet all performance and security requirements

> Working with other developers to create high-performance, scalable applications

> Researching new technologies and software development trends


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