Mastercard Jobs

Job Information

MasterCard Lead Software Engineer in O'Fallon, Missouri

Our Purpose

We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion ( for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation and delivers better business results.

Job Title

Lead Software Engineer


•Been the victim of credit card fraud and thought, “Vengeance!” Yeah, we get it.

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

•Interested in creating “That’s the stuff!” software for combating scammers?

The Transaction Security team develops new products for Mastercard's fraud prevention platform. We protect cardholders / card issuers and aim to 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.


•Ensures Code Design and its Quality for Enterprise Application

•Designs highly complex applications, interfaces and integration with a modest number of systems

•Responsible for performance engineering of the enterprise software architecture, and providing functional guidance, advice, and/or training to other application developers

•Responsible for Modest advanced code development, code review and day-to-day support duties

•Researching and evaluating tools to support domain-specific needs

•Develop technical work products and own solution design.

•Technically lead project through all stages of the project life cycle, including requirements understanding & analysis, estimation, design, development and acceptance testing

•Chart out development strategy / approach with correct gating criteria (Definition of done) for moving code from one environment to next, until production.

•Review production monitoring tool and practices to ensure issues are addressed proactively.

•Setup and keep enhancing coding guidelines/practices. Ensure its adherence through regular reviews with team.

•Technically coach team members to ensure optimal quality, performance and security parameters.

•Assist with production support issues by acting as a subject matter expert in resolving incidents and problem tickets.

All About You

•Considerate, polite, fun-loving, collaborative.

•Deep knowledge of software development processes including agile processes

•Hands on experience in UI development using Angular JS

•Experience with the design and development of complex, multi-tier software solutions

•Database experience including Oracle and advanced SQL scripting

•Experience integrating vendor and open source products into an overall system

•Ability to coordinate, interact with, and lead cross departmental teams.

•Experience in planning work and leading a small group of developers

•Ability to make decisions without all information.

•Ability to white-board solutions during discussions, and develop decision trees, flow charts and simple wireframes to prove a concept (Visio, PPT, DOC)

•Preferably professional experience in financial services, cards, payments or another related field

•Able to mentor peers and guide less experienced Team members

In the US, 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.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

  • Abide by Mastercard’s security policies and practices;

  • Ensure the confidentiality and integrity of the information being accessed;

  • Report any suspected information security violation or breach, and

  • Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

Everyone wants easier ways to pay;

we invent them.

Checkout lines are slow;

we speed them along.

Merchants want more sales;

we give them data and insights.

People need financial access;

we connect them.

Corporate purchasing is complicated;

we make it simple.

Commuters are busy;

we speed them on their way.

Governments need greater efficiencies;

we help create them.

Small businesses are virtual;

we give them access to a world of buyers.

Retailers want to fight fraud;

we provide the tools.

Requisition ID: R-169504