Lead 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

Lead Site Reliability Engineer

The SRE team at Mastercard is looking for a Site Reliability Engineer (SRE) who thrives on solving complex problems, building robust CI/CD pipelines, and leading the organization in DevOps automation and best practices.

Are You:
A natural problem-solver who loves to understand how things work
Passionate about CI/CD and obsessed with automation
Someone with a low tolerance for manual tasks, always seeking ways to automate
If yes, we want to hear from you.

About the BizOps Team
Business Operations (BizOps) is at the forefront of Mastercard s DevOps transformation, leading the charge through tooling, automation, and advocacy across development, quality, release, and product teams.
We re looking for individuals who:
Have an appetite for change.
Push the boundaries of what automation can achieve.
Build strong relationships across development, operations, and product teams.

Mission
BizOps ensures production readiness by partnering closely with developers to design, build, implement, and support services. Key responsibilities include:
Ensuring operational excellence in availability, performance, capacity, monitoring, self-healing, and deployment automation.
Supporting daily operations with a focus on root cause analysis and business impact.
Driving the shift-left approach, engaging early in development to enhance reliability.
Managing risk and compliance across all environments.
Standardizing and streamlining traditional support functions.
Acting as a key communication bridge between internal and external stakeholders.
Aligning product and customer priorities with operational needs.

Responsibilities
Engage in and improve the entire service lifecycle from design to deployment and operations.
Analyze ITSM platform activities and provide feedback to development teams on operational gaps and resiliency issues.
Provide system design consulting, capacity planning, and launch readiness support.
Monitor and maintain system availability, latency, and health.
Scale systems through automation and reliability-focused improvements.
Support and improve the CI/CD pipeline for software promotion, enforcing validation and operational gating.
Lead DevOps automation initiatives and best practices at Mastercard.
Drive sustainable incident response and conduct blameless postmortems.
Take a holistic approach to problem-solving during production incidents, improving Mean Time to Recovery (MTTR).
Work effectively with a globally distributed team across multiple time zones.
Share knowledge and mentor junior engineers.

Qualifications
BS degree in Computer Science or a related technical field (e.g., Physics, Mathematics) or equivalent practical experience.
Strong foundation in algorithms, data structures, scripting, software design, and pipeline management.
Systematic problem-solving approach with excellent communication, ownership, and drive.
Experience debugging and optimizing code, and automating manual tasks.
Ability to handle high-pressure situations and make decisions with urgency.
Proficiency in one or more programming languages: C, C++, Java, Python, Go, Perl, or Ruby.
Experience working with large-scale distributed systems and troubleshooting them effectively.
Experience with CI/CD tools, such as:
Git/BitBucket
Jenkins
Maven
Artifactory
Chef
Strong background in designing and implementing efficient CI/CD flows that get code from development to production with high quality and minimal manual effort.
Proven track record of working across development, operations, and product teams

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.