Lead AI Engineer
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 AI Engineer
Overview:
Mastercard is seeking a Lead AI Engineer to join a small, focused AI technology team led by one of Mastercard's Distinguished Engineers. The team will initially focus on delivering agentic technologies such as the Model Context Protocol (MCP) at scale and the use of open weight AI models. The team works in partnership with key technology stakeholders across the organization.
This is a hands-on engineering role. You will design and build the platform capabilities that let Mastercard adopt MCP and open weight models safely and at scale, working alongside more senior engineers who set the broader technical direction. We are looking for someone with strong knowledge of modern AI technology, solid software engineering and MLOps skills, good cloud platform experience, familiarity with identity technologies such as OAuth and a practical grasp of model evaluation.
In this role, you will help build the platform patterns through which Mastercard teams expose tools and data to agents over MCP, and through which the enterprise services, evaluates, and governs open weight models. You will contribute to the key technical decisions — gateway and connectivity patterns, identity and access controls, model-serving infrastructure, and evaluation — and turn them into working, well-engineered, production-grade services. You will work across the MCP estate and the OW model working group, partnering closely with the team's senior engineers and with central technology, security, and governance stakeholders.
About The Role:
· Contribute to the design and build of the components of Mastercard's enterprise MCP deployment, such as the security gateway, the MCP registry that governs what exists and who owns it, and reference server implementations that teams build from. Take these from design through to running production services.
· Implement the identity, authentication, and authorization patterns for MCP across the estate, working with the team's senior engineers and central security and identity teams so that agents, tools, and data are accessed securely an...
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