Platform Engineering Intern, Summer 2027 – St. Louis, MO, US

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 Platform Engineering Intern, Summer 2027 – St. Louis, MO, US Why join Mastercard’s internship program? Mastercard's internship program offers more than hands-on work. It provides an opportunity to build skills, expand your network, and make a meaningful impact while working on projects that support business priorities. It provides an opportunity to build skills, expand your network, and make a meaningful impact while working on projects that support business priorities.

About the team

Database Engineering (DBE) organization engineers and operates enterprise-scale database platforms, delivering automation, reliability, security, and compliance across PostgreSQL, Oracle, Cassandra, Redis, MongoDB, SQL Server, and cloud databases. The team enables modern data solutions for GenAI, LLMs, vector search, and RAG workloads, while driving platform innovation through automation, observability, and self-service capabilities. DBE ensures scalable, resilient, and future-ready data services for mission-critical applications for Mastercard.

What we’re looking for

• Currently enrolled in a Bachelors degree, with an anticipated graduation date between December 2027 and June 2028
• Exposure to system design concepts and an interest in building scalable, reliable software solutions.
• Experience through coursework, projects, or internships with AI/ML technologies, including machine learning model integration, agentic AI frameworks, or intelligent automation