Mastercard Payment Services Denmark A/S
Placering Ballerup
Overview
As part of the Mainframe Services team, you will contribute to the modernization and operational excellence of Mastercard’s core transaction processing systems. This role is critical to ensuring the reliability, scalability, and security of our mainframe infrastructure, which supports billions of transactions globally.
Role
- Design, develop, and maintain COBOL, JCL, and DB2-based applications on z/OS.
- Collaborate with cross-functional teams to integrate mainframe services with distributed systems.
- Lead modernization efforts including migration to event-driven architectures and API enablement.
- Ensure compliance with Mastercard’s Mainframe Security Technical Standard.
- Participate in daily CRQ syncs and operational reviews.
- Mentor junior engineers and contribute to the SE Guild’s leveling and performance standards.
All About You
- 5+ years of experience in mainframe development (COBOL, JCL, DB2).
- Strong understanding of z/OS architecture and batch processing.
- Experience with file transfer gateways, SFTP protocols, and integration layers.
- Familiarity with Agile methodologies and CI/CD pipelines.
- Ability to work in a global team and communicate effectively across time zones.
- A passion for modernization and continuous improvement.
Bonus
Knowledge of Mastercard’s Bill Pay Products
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
- Abide by Mastercard’s security policies and practices;
- Ensure the confidentiality and integrity of the information being accessed;
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
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