Senior Site Reliability Engineer

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Senior Site Reliability Engineer

Senior Site Reliability Engineer (SRE)
Overview
The Open Banking SRE team is responsible for building, operating, and scaling highly available cloud-native platforms. This role is deeply focused on AWS-based infrastructure and Kubernetes platforms (EKS), supporting critical production systems in a fast-paced, high-growth environment.
You will combine software engineering, infrastructure engineering, and operations to ensure reliability, performance, and scalability across services.

Role

Engage across the full-service lifecycle from design through production operations
Partner with product engineering teams to design, implement, and operate applications in cloud-native infrastructure (AWS, EKS, Kubernetes, Docker)
Manage and support critical production systems in a fast-moving cloud program
Automate infrastructure, monitoring, and operational processes
Improve CI/CD pipelines and deployment automation
Monitor system health, availability, and performance
Participate in on-call rotation and incident response; lead root cause analysis
Drive reliability improvements through automation and observability
Partner with development, product, and global teams to improve system resilience
Maintain system documentation, runbooks, and operational standards

Mission
Act as a key partner to our infrastructure and product teams by ensuring systems meet availability, performance, and reliability targets. Drive cloud-first, automation-driven SRE practices to reduce manual effort and improve customer experience.

All About You

Strong problem-solving skills with a systems thinking approach
Ownership mindset with ability to manage production systems end-to-end
Strong communication and collaboration skills across teams
Experience operating in fast-paced, cloud-based environments
Passion for automation and eliminating manual work

Qualifications

Bachelor’s degree or equivalent experience
Hands-on experience with AWS cloud infrastructure (required)
Strong experience with Kubernetes (EKS) and Docker (required)
Experience with Linux administration and troubleshooting
Terraform or similar IaC tools
CI/CD tools (GitLab, Jenkins)
Programming/scripting (Python, Go, Shell, etc.)
Monitoring/observability tools (Splunk, Dynatrace, Grafana)
Understanding of networking fundamentals (TCP/IP, load balancing)

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.