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Cloud Computing: Infrastructure & Operations SRE/Site Reliability Systems Engineer Cybersecurity

Lead Site Reliability Engineer

Job in O'Fallon, St. Charles County, Missouri, 63368, USA
Listing for: Mastercard
Full Time position
Listed on 2026-08-01
Job specializations:
  • IT/Tech
    Cloud Computing: Infrastructure & Operations, SRE/Site Reliability, Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 155000 - 205000 USD Yearly USD 155000.00 205000.00 YEAR
Job Description & How to Apply Below
Mastercard is seeking a Lead Site Reliability Engineer to drive reliability, scalability, and security for mission-critical financial services platforms. You will design and optimize cloud-native, highly available systems, implement SRE best practices, and lead incident response and postmortems. Partnering with IT and Cybersecurity teams, you'll automate deployments, observability, and resilience testing while mentoring engineers. Ideal candidates bring deep experience with cloud, CI/CD, infrastructure-as-code, and securing large-scale, distributed systems in a regulated environment.
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