Platform Engineering Intern, Summer 2027 – St. Louis, MO, US
About The Position
Mastercard is hiring a Platform Engineering Intern to join its Platform Architecture team in St. Louis, Missouri, for Summer 2027. The intern will gain hands-on experience with enterprise-scale platform architecture and critical payment infrastructure, including platforms supporting the Decision Management Program (DMP), which operates across Mastercard data centers and relies heavily on bare-metal server environments. The team designs platform architectures and creates detailed Visio diagrams for complex applications and infrastructure solutions. It collaborates with development, infrastructure, networking, security, and operations teams to help ensure applications run on scalable, resilient, highly available platforms. The internship offers exposure to infrastructure and data center design, application architecture and dependency mapping, architecture documentation, bare-metal and modern platform technologies, and real-world payment processing systems. The intern will work with a collaborative, globally distributed team and receive mentorship and professional development opportunities.
Requirements
- Currently enrolled in a bachelor's degree program, with an anticipated graduation date between December 2027 and June 2028.
- Foundational knowledge of a cloud computing platform such as AWS, Microsoft Azure, or GCP.
- Understanding of infrastructure concepts including high availability, capacity planning, scalability, and micro-segmentation.
- Exposure to containerization and orchestration technologies such as Docker and Kubernetes through coursework, projects, or internships.
- Familiarity with Infrastructure-as-Code and automation tools such as Git, Bitbucket, Jenkins, Terraform, Ansible, or Chef.
- Basic knowledge of Java application servers and enterprise application environments.
- Experience working with Linux through academic projects, labs, or personal learning.
- Ability to create technical diagrams and architecture documentation using Visio or similar tools.
- Strong analytical, problem-solving, and communication skills, and ability to learn new technologies quickly.
- Must be eligible to work in the United States now and in the future without employer sponsorship; candidates relying on F-1 visa authorization, including CPT or OPT, are not eligible.
- Applicants should upload an unofficial copy of their school transcript with the application.
Responsibilities
- Gain exposure to enterprise-scale platform architecture.
- Learn about infrastructure and data center design.
- Explore application architecture and dependency mapping.
- Create or contribute to Visio diagrams and architecture documentation.
- Learn about bare-metal and modern platform technologies and real-world payment processing systems.
- Collaborate with global engineering and architecture teams.
- Follow Mastercard security policies and practices, protect information confidentiality and integrity, report suspected security violations or breaches, and complete required security training.
Benefits
- Mentorship and coaching from experienced professionals and leaders.
- Networking 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.
- Potential to pursue future full-time opportunities, early career programs, or internships with Mastercard.
- Intern benefits generally include 56 hours of Paid Sick and Safe Time, jury duty leave, and on-site fitness facilities in some locations.
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What This Job Offers
Job Type
Full-time
Career Level
Intern
