Lead Site Reliability Engineer

Lead Site Reliability Engineer-2

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. We help build a sustainable economy where everyone can prosper, delivering secure, simple, smart, and accessible digital payments solutions that enable individuals, businesses, and governments to realize their greatest potential.

The Business Operations (Biz Ops) team seeks a highly‑motivated Lead Site Reliability Engineer to ensure the reliability, scalability, and performance of Mastercard’s Java and Spring Framework applications. You will mentor junior engineers, automate deployments, and maintain production readiness across the platform.

• Operational Readiness Architect – ensure application health, performance, and capacity; support pre‑launch activities.
• Site Reliability Engineering – design resilient infrastructure, perform root cause analysis, and automate alerts.
• Dev Ops/Automation – improve service lifecycle, support CI/CD pipelines, and reduce manual intervention.
• ITSM Practices – analyze platform activities and provide feedback to development teams.

• BS in Computer Science or related field.
• Proficiency in Java, Spring Framework, Python, or Go.
• Strong Dev Ops and configuration management skills.
• Experience with distributed systems and automation.
• Problem‑solving, communication, and leadership abilities.
• Passion for observability and continuous improvement.
• Willingness to learn and collaborate across teams.

Mastercard is a merit‑based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disability, veteran status, or any other characteristic protected by law. 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 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.

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

For full‑time employees (and certain part‑time employees) benefits generally include medical, prescription drug, dental, vision, disability, and 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 prorated based on the date of hire;

10 annual paid U.S. observed holidays; 401(k) with a company match; deferred compensation for eligible roles; fitness reimbursement or on‑site fitness facilities; tuition reimbursement; and more. Interns receive 56 hours of Paid Sick and Safe Time, jury duty leave, and on‑site fitness facilities in some locations.

O’Fallon, Missouri: $122,000 - $207,000 USD