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 Principal, Platform Architecture Overview The Distributed Platforms team is looking for a Senior Platform Architect to own and develop a cohesive architecture across our various on-premise compute, storage and runtime products and services, along with owning our hardware standards ensuring we are optimally placed to provide our customers with the best possible experience today and in the future across storage, CPU compute and GPU compute platforms. The ideal candidate must have an infrastructure architecture background with a passion for understanding how various compute and storage products and services interact with each other and how they fit together to provide a common architecture across our global datacenters. Role & Responsibilities In this architecture role, you will:• Own and evolve end to end compute and storage architectural patterns and designs for the Distributed Platforms program.• Partner closely with subject matter experts (SMEs) across engineering teams, as well as cross domain pattern teams (networking, databases, datacenter engineering), to define and execute strategic platform roadmaps.• Define and lead the GPU and AI infrastructure strategy spanning compute and storage platforms.• Establish, maintain, and govern architecture standards, reference designs, and best practices to ensure consistency, scalability, and operational excellence.• Influence platform direction by balancing technical rigor, operational feasibility, and customer needs.• Act as a trusted architectural authority across infrastructure, platform, and product teams. All About You The ideal candidate for this position will demonstrate:• More than 10 years of proven experience owning and designing large scale compute and storage architectures in enterprise or datacenter environments.• Strong hands-on knowledge across core infrastructure technologies, including: o Linux and Windows o VMware o Storage platforms (file, object, and block) o Kubernetes, Tanzu / PCF, and modern container platforms• Experience designing infrastructure to support GPU accelerated AI/ML workloads.• A strong foundational understanding of networking and datacenter infrastructure.• Excellent written and verbal communication skills, with the ability to produce clear, high quality architectural documentation.• A product and service-oriented mindset, with the ability to understand and anticipate customer and platform consumer needs.• A collaborative leadership style, with a passion for bringing together SMEs across multiple domains to define holistic, scalable architectural standards. Corporate Security Responsibility Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position 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. 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.

• Execute structural and content updates on the primary CMS (Drupal) and secondary sites (WordPress). • Build and format new landing pages based on UX wireframes. • Troubleshoot and manage third-party code injections, including tracking pixels, Google Tag Manager (GTM), and iframe applications. • Conduct routine site maintenance, broken link fixes, and mobile responsiveness testing. • Diagnose and resolve formatting breaks using HTML, CSS, and basic JavaScript. • Flag risky requests that could damage mobile experience or site quality, then propose a workable solution. • Use AI tools to support strategy development and execution where helpful.

• Designing, developing, and implementing services using C# and ASP.NET Web API/.NET Framework, integrating with authentication providers (OAuth/JWT or other auth patterns), and external services • Deploying solutions through CI/CD pipelines • Packaging and deploying APIs to Azure environments, and publishing them through Azure API Management for routing, policy enforcement, rating, versioning and monitoring. • Conduct testing of .NET APIs on Azure • Leverage AI tools to accelerate development and testing • Collaborate with other technical teams to align on design and testing • Create and maintain detailed technical documentation • Troubleshoot and resolve production defects in APIs • Participate in Agile ceremonies • Report on progress and status of development

• Solve complex problems and identify potential future issues • Manage systems data for clients • Provide day-to-day solutions and security compliance • Oversee a queue of assignments and work directly with technicians