Our PurposeMastercard 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 SummarySenior Site Reliability EngineerSenior Site Reliability Engineer (SRE)OverviewThe 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.RoleEngage across the full-service lifecycle from design through production operationsPartner 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 programAutomate infrastructure, monitoring, and operational processesImprove CI/CD pipelines and deployment automationMonitor system health, availability, and performanceParticipate in on-call rotation and incident response; lead root cause analysisDrive reliability improvements through automation and observabilityPartner with development, product, and global teams to improve system resilienceMaintain system documentation, runbooks, and operational standardsMissionAct 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 YouStrong problem-solving skills with a systems thinking approachOwnership mindset with ability to manage production systems end-to-endStrong communication and collaboration skills across teamsExperience operating in fast-paced, cloud-based environmentsPassion for automation and eliminating manual workQualificationsBachelor’s degree or equivalent experienceHands-on experience with AWS cloud infrastructure (required)Strong experience with Kubernetes (EKS) and Docker (required)Experience with Linux administration and troubleshootingTerraform or similar IaC toolsCI/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 ResponsibilityAll 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, andComplete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.