Senior Software Engineer

Mastercard Technologies, LLC · O'Fallon, MO telecommuting permitted

Education

Bachelor's in Computer / Electrical / Electronic / Mechanical / Industrial Engineering, Management Information Systems, Business Administration, or related technical field

Experience

72 months

Wage

~$133,973/year (median offered wage in 29 DOL filings, employer+title+state)

First / last seen

2026-10-01 / 2026-10-15

Experience must include

CC+C#JavaJavaScriptCOBOLSQLGitflowSonarCheckmarxPythondesign patterns including factory, adaptor, singleton, composite, observer, strategy, and inversion of control

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Where this job is advertised

National Labor Exchange (state job banks, via usnlx.com search) swa live

first seen 2026-10-01 · posted 2026-10-01

Original posting ↗

Application instructions (verbatim)

To apply, e-mail Samuel Gaither directly at Samuel.Gaither@mastercard.com, 1 Lincoln Street, Boston, MA 02111, with a copy of your resume and reference MC75-2026. ONLY APPLICATIONS SENT TO THE AFOREMENTIONED EMAIL WILL BE CONSIDERED.

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Why we think this is a PERM ad (100% confidence): Rules: PERM-form signals: foreign_equivalent, related_occupation, experience_must_include, telecommute, degree_field, exact_experience