Senior Software Engineer - COBOL

Mastercard
Copenhagen, Denmark (Arne Jacobsens)Posted 30 March 2026

Job Description

Our Purpose 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. Title and Summary Senior Software Engineer - COBOL Overview: The Danish Clearing team is looking for a Senior Software Engineer to be part of an existing team of 4 other colleagues, with responsibility for both maintenance and development of two critical clearing services. Role: In this position, you will • Collaborate with Product and Business stakeholders to prioritize team initiatives and participate in planning discussions. • Estimate, own, and execute all phases of delivery—including design, development, testing, deployment, configuration, and documentation—to fulfill business requirements. • Lead code, design, and process trade-off discussions within the team, ensuring optimal solutions are chosen. • Monitor status, proactively report progress, and manage risks for assigned applications or services. • Drive the integration of services with a strong focus on enhancing customer journey and overall experience. • Mentor and support new or less-experienced team members and promote the adoption of technology standards and best practices through code reviews and knowledge sharing. • Take part in the on-call duty activities • Share and seek knowledge within their Guild/Program to drive reuse of patterns/libraries/practices and enhance productivity All About You The ideal candidate for this position should: • Have a relevant education in IT or relevant experience from previous jobs. • Intermediate experience with COBOL (z / OS, Endevor, JCL, OPC / IWS, Easytrieve) • A solid understanding of SQL on DB2 • Have experience with application analysis to resolve issues and seek improvements • Be skilled at explaining technical problems succinctly and clear • Experience with Jira and Kanban/Scrum development methodologies • Speaks and writes fluent English and Danish Additionally, the following capabilities are preferred: • Experience with AQT and CA DB2 support tools • Experience in working with sourcing partners and virtual teams. • You communicate professionally and proactively with business and other stakeholders. • You are naturally part of a close team collaboration. • You create commitment and motivation in your colleagues • You work committed and professionally • Intermediate experience with Java 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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