John Jack Stout

SDE @Mastercard | Fintech | Java Developer | QE Tester

Role: Software Engineer Ii at Mastercard
Location: Florissant, MO, US
LinkedIn followers: 500 followers

Information TechnologyView LinkedIn profile

About John Jack Stout

Experienced Software Engineer with a demonstrated education. Skilled in Java, Spring Boot, C, SQL, DBMS, and Cascade CMS. Committed to furthering experience in the software engineering process, as well as other Computer Science concepts.

Experience

Software Engineer Ii
Mastercard
Feb 2026 — Present · O\'Fallon, MO, US

Education

Southeast Missouri State University
Bachelor of Science - BS
2020 — 2023
St. Dominic High School
High School Diploma
2015 — 2019

Contact information

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Work email
•••••@mastercard.com
Personal email
•••••@•••••.com
Direct dial
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Current company

Mastercard

Information Technology & Services · 36K employees · Founded 1966

Mastercard Inc. is a prominent American multinational technology company that specializes in global payment card services. Founded in 1966 and headquartered in Purchase, New York, Mastercard connects consumers, financial institutions, merchants, governments, and businesses across over 210 countries and territories. The company operates a capital-light model focused on processing electronic payments, rather than issuing cards or providing consumer loans directly. Mastercard offers a wide range of payment solutions, including core payment processing through the Mastercard Network, which handles transactions for credit, debit, and prepaid cards. The company also provides digital and real-time payment services, security and fraud prevention solutions, and data analytics and advisory services. With a diverse customer base that includes banks, merchants, consumers, and government entities, Mastercard facilitates secure and accessible financial transactions worldwide, serving more than 37 million businesses globally.

mastercard.com

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About John Jack Stout

Experience

Software Engineer Ii

Education

Southeast Missouri State University

St. Dominic High School

Find verified contacts for anyone on LinkedIn