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Lead, Site Reliability EngineerMastercard • O'Fallon, Missouri, United States
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Lead, Site Reliability Engineer

Mastercard
  • US
    O'Fallon, Missouri, United States
  • US
    O'Fallon, Missouri, United States
Apply Now

About

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 EngineerOverview
The ONE SRE team is looking for a Lead Site Reliability Engineer, to strengthen operational resilience across the technology stack through observability, automation, and platform engineering. The ideal candidate is highly motivated, intellectually curious, analytical, and passionate about improving reliability through proactive problem-solving, collaboration, and continuous improvement.
Role
-Serve as the subject matter expert for load balancer platforms, with a primary
focus on F5 technologies, and improve platform reliability, scalability, and operability across the enterprise
-Drive proactive reliability engineering by identifying systemic risks, recurring failure patterns, and architectural opportunities to strengthen resilience and performance
-Lead observability improvements through telemetry, dashboards, alerting, and monitoring practices using tools such as Splunk and Dynatrace
-Develop and enhance automation, CI/CD integrations, and DevOps practices that reduce manual effort and improve operational efficiency
-Partner with Architecture, Load Balancer Engineering, Operations, and global SRE teams to influence standards, roadmaps, troubleshooting approaches, and end-to-end system design
-Act as a senior escalation point for complex incidents, lead root cause analysis, and mentor engineers through shared documentation, runbooks, and best practices
All About You
-Advanced expertise in Site Reliability Engineering, platform engineering, or infrastructure operations, with strong knowledge of F5 load balancer platforms in large-scale production environments
-Strong experience implementing observability solutions across logs, metrics, and traces, and using telemetry to improve distributed system reliability and performance
-Proficiency in Python, Go, Bash, or similar scripting languages to automate operational tasks, improve workflows, and enhance platform efficiency
-Strong knowledge of Linux/Unix systems, networking, cloud and hybrid infrastructure, and highly available system design aligned to service level objectives
-Hands-on experience with DevOps practices, including CI/CD pipelines, automation, and container-based deployments, along with strong troubleshooting and root cause analysis skills
-Recognized as a technical expert who works independently on complex problems, influences outcomes across teams, and mentors others through shared engineering standards and best practices
Corporate Security Responsibility
Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position 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. 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
  • O'Fallon, Missouri, United States

Languages

  • English
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