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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


Work on an emerging application that is high profile connecting many financial institutions with a wide range of available networks for transactions processing, Clearing, Settlement and Disputes.

You must have a drive to learn new development skills and the software engineering experience to analyze, research, develop, and troubleshoot issues. You will work in a high pace environment collaborating with senior engineers and partner with business owners, development teams, quality engineering resources, product owners, and project managers

Major Accountabilities:

  • Member of the Network Gateway team responsible for Coding, Testing, Implementations, and Troubleshooting

  • Engage and coordinate with multiple software vendors and ensure quality of code being development and delivered to Mastercard meets the agreed upon requirements

  • Responsible for design, programming, implementation, documentation, and maintenance of systems application software

  • Participate in complex project implementation activities

  • Ensure knowledge transfer of vendor technology to Mastercard staff

  • Support collection and reporting of project and software metrics

  • Create diagrams, flowcharts, documentation, and training material. Prepare technical project plans, estimate development tasks, and report and progress status

  • Support Disaster Recovery, Capacity planning and PCI certification activities. Evaluate requests to determine technical feasibility, develop technical alternatives and recommend optimal technical solutions

Desired Qualifications:

  • Bachelor's degree in Computer Science, Engineering or equivalent experience.

  • Advanced knowledge and understanding of software engineering concepts including waterfall and agile methodologies is required

  • Demonstrate MC core competencies

  • Comprehensive experience with the following: Java, Oracle, Windows, Linux, File Transfer protocols

  • Previous knowledge of FIS Connex Product suite is a plus

Desired Skillsets:

  • Experience of various Mainframes technologies such as Cobol, JCL, Vsam, DB2, OPC/CA7, Changeman/Endevor, REXX, CICS, SAR, Expeditor

  • Knowledge of basic distributed technologies such as Linux, Windows servers is a plus

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-183104