Software Engineer Intern

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

Software Engineer Intern, Summer 2027 – United States

Why should I choose 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.

About the team

Mastercard's Software Engineering teams design, build, and optimize high-performing, highly scalable software solutions and products for some of the world's top brands. Using advanced cloud platforms, AI frameworks, and secure blockchain technologies, your work will transcend borders, connecting communities and transforming commerce.

What you'll do

As a Software Engineering Intern, you'll build foundational engineering skills, contribute to real-world projects, and gain experience working on technology used at a global scale. You'll collaborate with experienced engineers, contribute to meaningful projects, and gain hands-on experience building scalable, secure, and reliable technology. You may:

• Be a part of a real engineering team contributing to live systems and products.
• Contribute to building scalable, high-performance systems used globally.
• Write clean, efficient, and maintainable code using modern programming languages.
• Support design, development, and testing of software features.
• Write basic automated tests to verify code behavior.
• Learn and apply secure coding practices.
• Participate in code reviews, team discussions, and agile ceremonies.
• Collaborate with product managers, designers, and engineers to deliver solutions.
• Troubleshoot issues, debug code, and support enhancements.
• Gain exposure to how enterprise software systems are built and maintained.
• Note: responsibilities, projects, tools, technologies and programming languages will vary by team.

What we're looking for

• Currently pursuing a Bachelor's degree in Computer Science, Engineering, or a related field, graduating December 2027 and beyond.
• Basic understanding of programming languages such as Java, Python, C++, JavaScript, or similar.
• Strong foundation in data structures, algorithms, and core computer science concepts.
• Familiarity with version control (e.g., Git).
• Interest in software testing, debugging, and problem solving.
• Curiosity, motivation, and a willingness to learn.

Please be sure to upload an unofficial copy of your school transcript when submitting your application.

This role is not eligible for Mastercard's work authorization sponsorship. As such, candidates must be eligible to work in the United States, now as well as in the future, without employer sponsorship. For example, students or recent graduates in the United States on an F1 visa (including those with CPT or OPT authorization) are not eligible for this role.

As an intern, you'll benefit from

• Mentorship and coaching from experienced professionals and leaders.
• Networking opportunities with fellow interns, employees, and senior leaders.
• Professional development experiences focused on career growth and skill-building.
• Exposure to innovative technologies and global business challenges.
• Volunteer, community engagement, and team-building activities.

Many of our interns continue building their careers with Mastercard through full-time opportunities, early career programs, or future internships.

Pay Range

Arlington, Virginia: $35–$46/hr USD
O'Fallon, MO: $27–$34/hr USD

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.