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10,000+ Software Engineer jobs in O'Fallon, MO

Director, Software Engineering, Treasury Management

At Mastercard -O'Fallon, MO

Posted on May 1

Principal Engineer I

At Spectrum -Maryland Heights, MO

Posted on Jun 27

Strategic Student Program: Polarion Solution Engineering Internship (Fall 2025, GSCS)

At Siemens Digital Industries Software -Maryland Heights, MO / Remote

Posted on Jul 2

Senior Software/ QA Engineer

At Mastercard -O'Fallon, MO

Posted on Jul 3

Software Developer

At Spectrum -Maryland Heights, MO

Posted on Jun 20

Strategic Student Program: Data Engineering and Visualization Internship (Fall 2025, STMK)

At Siemens Digital Industries Software -Maryland Heights, MO / Remote

Posted on Jul 3

Lead Information Security Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 27

Test Engineer

At Spectrum -Maryland Heights, MO

Posted on Apr 29

Senior Middleware Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 25

BizOps Engineer II

At Mastercard -O'Fallon, MO

Posted on Jun 26

Principal, Information Security Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 5

Senior BizOps Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 29

Reliability Engineer II

At Mastercard -O'Fallon, MO

Posted on Jun 29

BizOps Engineer II

At Mastercard -O'Fallon, MO

Posted on Jun 19

BizOps Engineer II

At Mastercard -O'Fallon, MO

Posted on May 2

Lead BizOps Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 13

Senior Bizops Engineer

At Mastercard -O'Fallon, MO

Posted on Apr 4

Senior BizOps Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 25

BizOps Engineer II

At Mastercard -O'Fallon, MO

Posted on Apr 2

Principal Biz Ops Engineer

At Mastercard -O'Fallon, MO

Posted on Jun 13