Lead Site Reliability Engineer

Lead Site Reliability Engineer

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.

The Mastercard Business Operations (Biz Ops) organization is seeking a Lead Biz Ops Engineer to serve as a technical authority and operational architect across critical platforms. This role is designed for a senior individual contributor who thrives at system‑level thinking, drives SRE, Dev Ops maturity at scale, and influences outcomes across programs, portfolios. As a Lead Biz Ops Engineer, you will operate beyond a single application or team, shaping reliability strategy, defining standards, and elevating operational excellence across Mastercard's most business‑critical services.

You will partner deeply with product engineering, architecture, security, and leadership to ensure platforms are designed, delivered, and operated with resilience, scalability, and customer trust at their core.

Your mission is to embed reliability, operability, and compliance into platform design and delivery, ensuring services are:
Highly available, resilient, and performant Observable, self‑healing, and automation‑driven Secure, compliant, and auditable by design Operated through repeatable, scalable, low‑toil processes You will provide continuous feedback loops into engineering and product teams, ensuring lessons learned from production meaningfully improve future designs and customer experience.

We deliver this mission through:
Deep incident ownership with rigorous root‑cause analysis tied to business impact A shift‑left operational mindset, influencing architecture and design before code reaches production Enterprise‑grade risk management, controls, and compliance oversight Standardized and streamlined support models that reduce friction for partners

Key responsibilities include:

• Technical Leadership & Architecture
• Operational Excellence & Reliability
• Dev Ops, CI/CD & Automation
• Observability & Self‑Healing Systems
• Risk, Controls & Compliance
• Influence, Mentorship & Thought Leadership

Qualifications required include:

• Bachelor's degree in Computer Science, Engineering, or a related technical discipline, or equivalent practical experience.
• Deep expertise in distributed systems, reliability engineering, and production operations.
• Strong foundation in algorithms, data structures, system design, and automation.
• Advanced troubleshooting skills across the full technology stack.
• Proven ability to drive decisions and outcomes in high‑pressure, high‑impact environments.
• Possess a solid understanding of databases, blob-stores like S3, and load balancers.
• Proficiency in one or more of:
  Python, Go, Bash.
• Extensive hands‑on experience with Dev Ops and observability tooling, such as Git / Bitbucket, Jenkins / XLR, Chef, Ansible, Splunk, Dynatrace.

Corporate security responsibility includes:

• 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, 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. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.

Pay Ranges

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