Senior Software Engineer

Mastercard · O'Fallon, MO, US

Mastercard is hiring a senior Senior Software Engineer in O'Fallon, MO, US. What you'll do: mentoring and testing / qa, work across the payments, security, and compliance domains. Qualifications: a bachelor's degree and familiarity with Java, C++, Express, Spring, Kafka, and Jenkins. Part-time, on-site, paying $115K–$184K.

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Salary: $115k–$184k · parttime · onsite
Source: mastercard.wd1.myworkdayjobs.com
Original link: https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Senior-Software-Engineer_R-275738
ATS: Workday
Posted: 5 days ago (2026-05-04)
Status: active

Skills: Java, C++, Express, Spring, Kafka, Jenkins

Topics: Payments, Security, Compliance

Activities: Mentoring, Testing / QA

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