Lead Site Reliability Engineer

Mastercard•O'fallon, MO
•$122,000 - $207,000

About The Position

The Business Operations (Biz Ops) team seeks a Business Operations Site Reliability Engineer to serve as a production-readiness steward for Mastercard products. The role helps ensure platform stability and health while fostering developer ownership and helping developers build resilient products. The engineer supports the software development lifecycle through operational design, automation, capacity planning, and monitoring to deliver fault-tolerant, scalable products. The team establishes operations standards and promotes an agile, learning culture. The Lead Site Reliability Engineer will help ensure the reliability, scalability, and performance of Java and Spring Framework applications supporting Mastercard’s global operations. The role combines technical leadership, automation, and mentoring of junior engineers. It includes supporting daily operations through triage, identifying root causes in the context of business impact, and conducting blameless postmortems. The team engages early in development to improve operational readiness and proactively manages production and change activities to support customer experience and application value. The role also contributes to compliance and risk mitigation across environments and provides continuous feedback to align product and customer priorities with operational needs.

Requirements

  • Bachelor of Science in Computer Science or a related field.
  • Proficiency in Java, Spring Framework, Python, or Go.
  • Strong DevOps and configuration management skills.
  • Experience with distributed systems and automation.
  • Problem-solving, communication, and leadership abilities.
  • Willingness to learn and collaborate across teams.

Nice To Haves

  • Passion for observability and continuous improvement.

Responsibilities

  • Ensure application health, performance, and capacity, and support pre-launch activities.
  • Design resilient infrastructure, perform root cause analysis, and automate alerts.
  • Improve the service lifecycle, support CI/CD pipelines, and reduce manual intervention.
  • Analyze platform activities and provide feedback to development teams.
  • Support developers during application build phases with operational design, automation, capacity planning, and monitoring.
  • Support daily operations through triage, business-impact analysis, root-cause investigation, and blameless postmortems.
  • Engage early in the development lifecycle and proactively manage production and change activities.
  • Help create and enforce operations standards and support compliance and risk mitigation across environments.
  • Mentor and guide junior engineers.

Benefits

  • 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 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 eligibility.
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