Software jobs in O'Fallon
25 open jobs, updated Oct 14, 2026
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- Remote
- Lead Site Reliability EngineerMastercard · O'Fallon, Missouri · Full-time
- Senior Software Engineer - JavaMastercard · O'Fallon, Missouri · Full-time
- Senior Database Platform Engineer (Oracle)Mastercard · O'Fallon, Missouri · Full-time
- Manager, Site Reliability EngineeringMastercard · O'Fallon, Missouri · Full-time
- Vice President Platform EngineeringMastercard · O'Fallon, Missouri · Full-time
- Director, Finance Business Partner - Technology InfrastructureMastercard · O'Fallon, Missouri · Full-time
- Manager, Software EngineeringMastercard · O'Fallon, Missouri · Full-time
- Site Reliability Engineer IIMastercard · O'Fallon, Missouri · Full-time
- Senior Site Reliability EngineerMastercard · O'Fallon, Missouri · Full-time
- Lead Software Development EngineerMastercard · O'Fallon, Missouri · Full-time
- Senior Information Security EngineerMastercard · O'Fallon, Missouri · Full-time
- Lead Software Engineer(Recorded Future)Mastercard · O'Fallon, Missouri · Full-time
- Director, Platform EngineeringMastercard · O'Fallon, Missouri · Full-time
- Lead, Platform EngineeringMastercard · O'Fallon, Missouri · Full-time
- Director, Mainframe Software EngineeringMastercard · O'Fallon, Missouri · Full-time
- Software Engineer IMastercard · O'Fallon, Missouri · Full-time
- Lead Software Integration Engineer (Release Management) – Workday & HR PlatformsMastercard · O'Fallon, Missouri · Full-time
- Software Engineer II – Notification ManagerMastercard · O'Fallon, Missouri · Full-time
- Senior Full Stack Software EngineerMastercard · O'Fallon, Missouri · Full-time
- Senior Software EngineerMastercard · O'Fallon, Missouri · Full-time
- Lead Software EngineerMastercard · O'Fallon, Missouri · Full-time
- Software Engineer IIMastercard · O'Fallon, Missouri · Full-time
- Principal Software EngineerMastercard · O'Fallon, Missouri · Full-time
- Software Engineer II - Decision Management ProgramMastercard · O'Fallon, Missouri · Full-time
- Vice President, Software EngineeringMastercard · O'Fallon, Missouri · Full-time
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