About the role#
This internship position supports the Hardware Security Module Engineering team. You will assist with project-based work that supports business priorities. This is a full-time, paid role for Summer 2027.
What you'll do#
- Support business priorities through project-based work.
- Abide by all security policies and practices.
- Ensure the confidentiality and integrity of information you access.
- Report any suspected security breaches or violations.
- Complete all mandatory security training sessions.
What you'll need#
- Current enrollment in a Bachelors degree program for Computer Science or a related field.
- An anticipated graduation date between December 2027 and June 2028.
- Exposure to Agile software development methodologies, including user stories, features, and sprint-based delivery.
- Familiarity with Jira or similar project management and work tracking tools.
- Demonstrated ownership and accountability in academic or professional projects.
- Strong self-motivation, initiative, and attention to detail.
- Eligibility to work in the United States without employer sponsorship.
Location & details#
- This role is located on-site in O'Fallon, Missouri.
- The internship takes place during Summer 2027.
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.
How to get in at Mastercard
Applying to Mastercard early gives you a distinct advantage because recruiters review applications as they arrive. Intern Insider sends an instant alert the moment a role matching your target is published, helping you get your materials in before the applicant pile grows. Securing a spot in the initial review cycle is often the difference between a screening call and a rejection. You can reach out to the recruiters behind Mastercard roles directly to ask about the position or a referral, which often improves response rates. Intern Insider surfaces these specific contacts for you, allowing you to bypass the generic queue. A direct, professional inquiry shows you have done your homework and are genuinely interested in the firm.



