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Principal Site Reliability Engineer

Mastercard.com

Office

O'Fallon, Missouri (Main Campus), United States

Full Time

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

Principal Site Reliability EngineerPrincipal Site Reliability Engineering
Our Purpose
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.
Title and Summary
The team offers robust event management, correlation, automation and runbook solutions to help MasterCard deliver continuous uptime of business services and applications and, optimize operations costs and efficiency.

• Leads day-to-day support strategies to ensure high availability of Mastercard services
• Drives implementation of quality engineering best practices to deliver services and solutions that meet stakeholders needs (e.g., consumers, merchants, issuers, governments)
• Leads teams providing highly reliable services and support that ensure optimal infrastructure performance
• Conducts engineer training and mentoring in RE methodologies, empowering technical talent to build high quality services and better products

This individual will work closely with technology support teams and application teams improve the application and infrastructure availability.

Role
• Represent team in project meetings and provide advice, status, training and technical support
• Work with our customers to understand requirements and implement solution
• Manage, support and maintain a multi-tier environment
• On-call rotation
• As new technologies emerge and impact our environment, learn these technologies very quickly and resolve any problems involved in integrating new technologies.
• Maintains a broad knowledge of state-of-the-art technology, equipment, and/or systems.
• Self-Driven and flexible willing to learn in adjacent areas with the initiative to learn more.
• Thorough, adhering to critical processes even under stress
• Maintain business disaster recovery procedures for assigned areas of responsibility.
• Accurately document duties and procedures to aid the department in cross-training and absentee coverage
• Work with technical engineering teams to manage and improve processes
• Ability to solve problems quickly and completely.
• Ability to identify tasks that should be automated and then develop and implement automation

All About You

• Experience leading large cross-functional initiatives, often partnering with internal customers across development verticals, expected to provide project direction and bring solution to market
• Extensive experience leading the day-to-day global technology domains and sub-domains, teaming with leaders in the technical community and derive new solutions and future business network requirements
• Experience leading quality engineering process improvement initiatives for operational and financial value by leveraging tools and technologies
• Track record recommending complex automation adoption solutions to management and identifying potential automation problems
• Ability to manage multiple projects simultaneously under pressure without direct supervision
• Ability to manage multiple activities and work with a strong sense of urgency
• Ability and motivation to learn new technologies quickly and with minimal support and guidance.
• Evening, weekend and shift on-call required to meet deadlines and correct system failures or for patch upgrades.
• Strong people skills and the ability to understand business needs and translate them into technical solutions
• Excellent verbal and written skills, organization, project prioritization, and time management skills.

In the US, Mastercard is an inclusive Equal Employment Opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. If you require accommodations or assistance to complete the online application process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

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.Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

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.
In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more.

Pay Ranges

O'Fallon, Missouri: $138,000 - $230,000 USD

Principal Site Reliability Engineer

Office

O'Fallon, Missouri (Main Campus), United States

Full Time

October 9, 2025

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Mastercard

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