Lead Software Engineer at Mastercard in Dublin, Leinster, Ireland

Lead Software Engineer Location: Dublin, Ireland (Mountain View) 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 Software Engineer Overview: Mastercard is seeking a Lead Software Engineer to join our growing Commercial Connect API team. This team is building a global B2B technology platform that empowers businesses of all sizes to manage payments more efficiently when buying or selling products and services. As a lead engineer, you’ll be part of a collaborative Agile team working in a cutting-edge Mastercard technology hub. You will apply modern software engineering development practices with a strong emphasis on microservices architecture and scalable database development. Your contributions will help shape how Mastercard standardizes, automates, and optimizes digital payments across the global B2B landscape. This is a hybrid position based in Sandyford, Dublin, requiring three days per week onsite. Role: • Lead the design, development, and deployment of high-quality Java microservices that integrate with modern front-end frameworks and third-party applications. • Apply 12-factor app principles to ensure robust, scalable, and cloud-ready solutions. • Contribute to all phases of the development lifecycle including planning, coding, testing, reviews, and delivery. • Collaborate closely with engineers, product managers, TPMs, and test engineers to align technical and business goals. • Perform code reviews, submit and manage Git pull requests, and support continuous improvement. • Ensure adherence to Mastercard's engineering best practices and compliance with enterprise security, operations, and architecture standards. • Optimize application performance and reliability for large-scale, high-traffic systems. All About You: • Extensive experience as a backend Software Engineer or Software Developer in a fast-paced, collaborative environment. • Strong experience developing backend applications using Java. • Proven expertise in designing and developing secure, scalable microservices that handle high traffic volumes, with strong knowledge of microservices architecture, RESTful API design, and integration patterns. • Advanced SQL knowledge with databases like PostgreSQL, Oracle, etc., and experience building solutions that scale. • Hands-on experience with cloud platforms such as AWS or Azure. • Experience with CI/CD practices, containerization (Docker, Kubernetes), DevOps practices, automated testing, and version control using Git. • Experience working in an Agile development environment. • Excellent verbal and written communication skills, with the ability to articulate complex ideas clearly and concisely to both technical and non-technical stakeholders. • Strong analytical and problem-solving abilities, with a focus on improving processes to accelerate delivery, foster innovation, reduce costs, and improve quality. • Bachelor’s degree in Computer Science, Engineering, or a related field. Equivalent practical experience will be considered. Preferred Qualifications: • Experience in the commercial card or corporate banking space. • Familiarity with enterprise payment systems or financial services infrastructure. • Demonstrated ability to manage or lead complex technical projects and mentor junior developers. 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.