MasterCard Engineer, Software Engineering in O'Fallon, Missouri

Who is Mastercard?

We are the global technology company behind the world€™s fastest payments processing network. We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless ®. We ensure every employee has the opportunity to be a part of something bigger and to change lives. We believe as our company grows, so should you. We believe in connecting everyone to endless, priceless possibilities.

Job Title

Engineer, Software Engineering


Been the victim of credit card fraud and thought, €œVengeance!€ Yeah, we get it.

Want to feel your spine tingle by thwarting credit card fraudsters across the globe?

Interested in creating €œThat€™s the stuff!€ software for combating scammers?

The Security Services team develops new capabilities for Mastercard's fraud prevention platform. We protect cardholders / card issuers and aim to utterly eradicate credit card fraud. Our industry-leading bastion of defense processes billions of transactions per month with execution times literally 10X faster than you can blink. The Consultant Software Engineer will play a critical role in creating new product functionality within this platform including world-class backend and consumer-facing features.


Possess the aptitude to quickly learn and contribute to our complex platform.

Apply technical knowledge to ensure effective delivery of software capabilities.

Contribute to the planning and development of software solutions.

Perform code reviews of co-worker€™s deliverables to ensure best practices.

Pair with software testers to expedite user story completion.

All About You

Considerate, polite, fun-loving, collaborative (cf. €œBob Sutton, 2007€).

Effective organizational and communication skills: both verbal and written.

Competent in Java development, design patterns, threading, unit testing, debugging.

Experienced employing agile development strategies and ceremonies.

Bachelor's degree in Information Systems or equivalent degree / work experience.

Mastercard is an inclusive Equal Employment Opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.€‹

If you require accommodations or assistance to complete the online application process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Requisition ID: R-61769