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Lead Site Reliability Engineer
Mastercard
O'Fallon, MissouriPosted Oct 16, 2026 · 3h ago$122K – $207K
Full-time$122K – $207KLeadFintech
About this role
As a Lead Site Reliability Engineer at Mastercard, you will ensure the stability, scalability, and performance of critical Java and Spring Framework applications that power global commerce. You will champion developer ownership, drive automation, and mentor junior engineers while focusing on proactive production readiness and risk mitigation.
What we are looking for
6- Ensure reliability, scalability, and performance of Java/Spring applications
- Drive automation and improve CI/CD pipelines
- Perform root cause analysis and blameless post-mortems
- Mentor junior engineers and foster a culture of continuous improvement
- Collaborate with development teams on operational design and capacity planning
- Manage risk and ensure compliance across production environments
Skills mentioned
3PythonJavaCI/CD
