Software Engineer Intern

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    Mastercard

    10,001+ employeesPurchase, NYIT Services and IT Consulting
    Actively hiringPaidSummer 2027IT Services and IT Consulting
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    Best applied by Sep 24

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    About the role#

    This is a full-time, paid internship for Summer 2027. You will join an engineering team to work on live systems and products. This role provides exposure to how enterprise software is built, maintained, and scaled globally. You will work on-site in either O'Fallon, Missouri, or Arlington, Virginia.

    What you'll do#

    • Contribute to the design, development, and testing of software features.
    • Write clean, maintainable code and basic automated tests to verify behavior.
    • Learn and apply secure coding practices.
    • Participate in code reviews, team discussions, and agile ceremonies.
    • Collaborate with product managers, designers, and other engineers.
    • Troubleshoot issues and debug code to support system enhancements.

    What you'll need#

    • Currently pursuing a Bachelor’s degree in Computer Science, Engineering, or a related field.
    • Expected graduation date of December 2027 or later.
    • Basic understanding of programming languages such as Java, Python, C++, or JavaScript.
    • Strong foundation in data structures, algorithms, and core computer science concepts.
    • Familiarity with version control systems like Git.
    • Curiosity and a willingness to learn.
    • Eligibility to work in the United States now and in the future without employer sponsorship.

    Location & details#

    • Locations: O'Fallon, MO and Arlington, VA.
    • Work Modality: On-site.
    • Term: Summer 2027.
    • Please upload an unofficial copy of your school transcript with your application.

    About Mastercard

    Mastercard operates as a public company in the IT services and consulting sector. It provides technology and infrastructure for digital payments and commerce across more than 200 countries. The firm supports businesses, governments, and individuals with transaction processing and mobile payment solutions. It maintains a global presence with over 52,000 employees.

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