About the role#
As a Site Reliability Engineering Intern, you will act as a production readiness steward for our products. You will help ensure our platform remains stable and healthy while working to break down barriers to product ownership. This role focuses on supporting developers during the application build phase by applying principles of operational design, automation, capacity planning, and monitoring. You will help enforce operations standards and contribute to an environment that prioritizes learning and agility.
What you'll do#
- Ensure the stability and health of the production platform.
- Support developers during the application build phase in software run principles.
- Perform triage, root cause analysis, and blameless post-mortems.
- Manage production and change activities to maximize customer experience.
- Engage early in the development lifecycle to provide continuous operational feedback.
What you'll need#
- Currently enrolled in a Bachelors degree program with an anticipated graduation date between December 2027 and June 2028.
- Experience with programming or scripting languages such as Python, Go, or Bash.
- Experience with Linux/Unix systems and foundational networking concepts.
- Familiarity with cloud platforms including AWS, Azure, or GCP and DevOps practices.
- Understanding of system monitoring, observability, and application reliability.
- This role is not eligible for work authorization sponsorship.
Location & details#
- Location: O'Fallon, Missouri
- Term: Summer 2027
- Modality: On-site
- Employment type: Full-time
- Compensation: $25-30/hr
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.


