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 Who is Mastercard? We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results. About the Role The Authorization Platform refers to both hardware (the physical communications lines of the Mastercard Network and Mastercard interface processors [MIPs]) and software (the Mastercard Network authorization application). As a Senior Engineer in BizOps, you will play a pivotal role in advancing Mastercard’s authorization observability and operational intelligence. This role focuses on engineering solutions that enhance platform instrumentation, cross-team integration, and real-time alerting across multi-platform environments. Your responsibilities include building and maintaining impact and blast-radius reporting in partnership with Incident Manager teams to enable rapid delivery of metrics for incidents affecting Transaction Switching Authorization. You’ll also engineer internal SLA/SLO monitoring, dashboarding, reporting systems, and support customer-facing data enablement for latency and decline inquiries. You’ll collaborate with BizOps Squad Leads to define and deliver release observability requirements, ensuring robust logging and monitoring for new and enhanced components. You’ll also support SLA/SLO documentation and cross-team reviews to identify and implement improvements. In addition, you’ll develop custom data solutions for operational authorization needs, including dashboards, alerts, and reporting for BizOps and engineering teams. You’ll also contribute to next-gen data enablement using AI/ML and Mastercard platforms like AI Ops to improve incident detection and prevention. Finally, you’ll support specialized initiatives to improve the authorization experience across Transaction Switching and Auth-connected programs, addressing customer issues, configuration errors, and data mismatches.  Own application health, performance, and capacity as primary point of contact.  Define monitoring, alerting, and reliability strategies in partnership with development teams to ensure zero/low downtime.  Build dashboards, reports, and data-driven alerts (Splunk/Power BI) for real-time insights.  Design and maintain ETL processes and data pipelines for monitoring and analytics.  Perform incident management, root cause analysis, and drive reliability improvements (SLOs, post-mortems).  Support CI/CD pipelines and promote DevOps best practices and automation.  Optimize system performance, scalability, and resilience across environments.  Automate workflows and reduce manual effort using Python and tooling.  Manage and monitor cloud-based infrastructure (AWS/Azure).  Analyze operational/ITSM data to identify gaps and improve system reliability. All About You –  Strong hands-on experience with Splunk, including building i ... (truncated, view full listing at source)