Site Reliability Engineering Intern

  • Mastercard
  • O Fallon, Missouri
  • 09/13/2026
Full time Information Technology Telecommunications

Job Description

As a Site Reliability Engineering Intern at Mastercard, you will support the design, monitoring, and operation of large-scale, cloud-based systems that power secure, global payments. Working alongside experienced SREs and software engineers, you'll help maintain production environments, assist in incident response, and contribute to root-cause analysis to prevent recurrence. You'll aid in building automation for deployments, monitoring, and alerting, and help document runbooks and processes. This internship offers exposure to cutting-edge technologies, modern DevOps practices, and a collaborative culture focused on innovation and continuous learning.

Responsibilities

  • Assist in maintaining and monitoring production and cloud infrastructure
  • Support incident response, troubleshooting, and root-cause analysis
  • Help improve system reliability, scalability, and performance
  • Contribute to automation of deployments, monitoring, and alerts
  • Work with engineers to implement reliability best practices
  • Document processes, runbooks, and technical findings
  • Participate in on-call simulations and reliability exercises
  • Collaborate with cross-functional teams in an Agile environment

Required Skills

  • Linux system administration basics
  • Cloud computing fundamentals (AWS/GCP/Azure)
  • Scripting/programming (Python, Java, or Go)
  • CI/CD pipelines and Dev
  • Ops concepts
  • Containers and orchestration (Docker, Kubernetes)
  • Monitoring and logging tools (Prometheus, Grafana, ELK, etc.)
  • Networking fundamentals (TCP/IP, DNS, HTTP)
  • Version control with Git
  • Automation and Infrastructure as Code concepts
  • Troubleshooting and root-cause analysis