Lead Java Software Development Engineer at Mastercard · Copenhagen

Lead Java Software Development Engineer Location: Copenhagen, Denmark (Arne Jacobsens) 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 Lead Java Software Development Engineer About Mastercard At Mastercard, we work to connect and power an inclusive digital economy that benefits everyone, everywhere. We make transactions safe, simple, smart, and accessible through secure technology, partnerships, and innovation. Our technology teams build the systems that power global commerce. We are looking for a highly skilled and motivated Lead Software Engineer to help shape and deliver the next generation of products and services. Role Overview As a Lead Software Engineer, you will play a key role in designing, building, and delivering robust, scalable, and secure software solutions. You will act as a technical leader within your team, driving engineering excellence and contributing directly to the development of critical systems. This is a hands-on role with significant influence on architecture, technology choices, and delivery outcomes. Key Responsibilities Design and develop high-quality software solutions that meet performance, scalability, and security requirements Lead the technical design and architecture of complex systems Take ownership of end-to-end delivery, from initial design through deployment and ongoing operation Write clean, maintainable, and efficient code, and perform code reviews to ensure quality standards Collaborate closely with product managers, designers, and engineering teams across the organization Identify and resolve technical challenges and production issues Drive best practices in testing, automation, and continuous delivery Improve system reliability, observability, and operational efficiency Leadership Expectations Provide technical guidance and mentorship to engineers within the team Influence technical direction and promote high engineering standards Foster a collaborative and inclusive team environment Contribute to knowledge sharing and continuous improvement across teams Skills and Experience Strong experience in software development, including design and implementation of scalable systems Solid understanding of system architecture and distributed systems Experience with modern development practices, including automated testing and continuous integration and delivery Ability to troubleshoot complex systems and drive improvements in performance and reliability Strong collaboration and communication skills in a global environment What We Offer The opportunity to work on technologies that power global commerce A collaborative, inclusive, and innovative work environment The ability to grow your career across teams, domains, and geographies Access to learning and development opportunities to continuously build your skills Corporate Security Responsibility 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.