Senior Principal Site Reliability Engineer

Mastercard · O'Fallon, MO, US

Mastercard is hiring a principal Senior Principal Site Reliability Engineer in O'Fallon, MO, US. What you'll do: deployment / devops and performance optimization, work across the payments, data engineering, and security domains. Qualifications: a bachelor's degree and familiarity with Python, Java, Go, Ruby, C++, and Perl. Part-time, on-site, paying $200K–$330K.

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Category: Engineering
Salary: $200k–$330k · parttime · onsite
Source: mastercard.wd1.myworkdayjobs.com
Original link: https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Senior-Principal-Site-Reliability-Engineer_R-276397
ATS: Workday
Posted: 2 days ago (2026-05-07)
Status: active

Skills: Python, Java, Go, Ruby, C++, Perl, SQL, Bash, Jenkins, Git

Topics: Payments, Data engineering, Security, Compliance

Activities: Deployment / DevOps, Performance optimization

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