Intern, Data Scientist

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
Intern, Data Scientist
We are the global technology company behind the world's fastest payments processing network. We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless®. At Mastercard, we believe that as our company grows, so should you. We ensure every employee has the opportunity to make an impact and be part of something bigger, connecting everyone to endless, priceless possibilities.
The Mastercard Data Science Internship Program in Portugal is a 10-week summer program designed for students eager to apply data-driven thinking to real business challenges. Starting in June 2026, interns will join our Data Science teams to work on analytics, machine learning, statistical modelling, and insights that support smarter, more secure payments.
As an intern, you will take on meaningful, real-world projects that help build your technical skills while contributing to team and business goals.
Program Components:
• Data-focused assignments that deliver real business impact• Networking sessions and leadership speaker series• Volunteer initiatives and team-building activities
Program Qualifications:
• Graduation date of summer 2027• Available for a 10-week internship starting June 2026• Strong academic performance in Data Science, Computer Science, Mathematics, Statistics, Engineering, Economics, or similar quantitative fields• Curiosity, analytical thinking, and an interest in solving complex problems with data• Ability to collaborate across teams in a global organization• Strong communication skills
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.