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MasterCard STL 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 (https://www.mastercard.us/en-us/vision/who-we-are/diversity-inclusion.html) 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

STL Lead Software Engineer


Work on an emerging application that is high profile connecting many financial institution with a wide range of available networks for transactions processing, clearing, and settlement.

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 team, 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.

Oversee development tasks, code delivery, test planning, and test execution

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.

Act as a liaison with internal staff and third-party vendors who have systems experience and perform coding on behalf of Mastercard.

Support collection and reporting of project and software metrics.

Write, debug, diagram, create flowcharts, code, and document programs. Prepare technical project plan, incorporating development costs and tasks of the various technical components.

Support Disaster Recovery 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: CONNEX, TAL, C, Java, Windows, Linux, File Transfer Protocols

Previous knowledge of FIS CONNEX Switch and experience with gateway processing is a plus

Due to COVID-19, most of our employees are working from home. We’ve implemented a virtual hiring process and continue to interview candidates by phone or video and are onboarding new hires remotely. We value the safety of each member of our community because we know we’re all in this together.

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 reasonable.accommodation@mastercard.com 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-125419