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MasterCard Lead Software Development 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 Development Engineer

Lead, Software Development Engineering


At Mastercard, our industry expertise is enhanced by our commitment to being a force for good in the world and to doing well by doing good. Mastercard relies on our global workforce to help us achieve our goal of building a sustainable, inclusive global economy. The Mastercard Way encourages us, connects us with the behaviors that represent the essence of not only what we do but who we are as an organization. Cultivating an environment for all employees that respects their individual strengths, views and experiences drives a global and collaborative culture of inclusion and sense of belonging.

MasterCard software engineering teams leverage Agile development principles, advanced development and design practices, and an obsession over security, reliability, and performance to deliver solutions that delight our customers. We're looking for talented software development engineers to develop advanced technologies and applications that are revolutionizing payments.

Are you passionate about software engineering?

Do you enjoy seeing the impact your code has on a wide range of customers across the globe?

Do you want to work for a company that offers above and beyond benefits including paid parental leave, flexible work hours, gift matching, and even volunteer incentives while encouraging your own professional learning and development?

Do you thrive in a place where you are continuously learning more while growing your skills and career?

Do you want to join a Company that offers a competitive benefits-and rewards program that attracts, develops and retains the most talented employees around the world?

Do you want to join an inclusive culture where employees, in all their diversity, feel valued, respected and who can bring their authentic selves to work? Learn more at Mastercard’s Corporate Sustainability Report.


Hands-on developer who writes high quality, secure code that is modular, functional and testable.

Lead the design, implementation, and delivery for engineering efforts across a program

Create or introduce, test, and deploy new technology to optimize the service

Design and build technical road-maps and guide the development staff on adoption

Contribute to all parts of the software’s development including design, development, documentation, and testing.

Have strong ownership of your team’s software and are deep in the maintenance characteristics, runtime properties and dependencies including hardware, operating system, and build.

Must have the ability to work in a team, with collaboration providing more cross-functionality with other internal/external team.

Must have the ability to confidently and quickly make a decision is the hustle-bustle environment in order to maintain the ability of rapid development and deployment of new coding changes.

Should have a working understanding of data centre-based and cloud infrastructure components including elements such as how software is networked to running virtual networks.

Must have an experience in building and maintaining an efficient, cost-effective, fault-tolerant server-side infrastructure. Most importantly, we are looking for a technically strong, hands-on engineer, who has desire to: 1) constantly learn more about new toolstack like AWS/Azure/GCC 2) work within a Mastercard technology stack (PCF, NiFi, NATS, Kafka, Zookeeper, Splunk, Redis, Cassandra, Oracle and simplify the usage of these new tools by creating common libraries, interfaces to use the new toolstack efficiently 3) maintain and extend existing infrastructure and perform the tuning activities based on the need of the application, 4) take pride in overall product quality, and 5) work with others, including software engineers and product managers to build the best products in the industry.

Must have soft skills as well as technical in order to Communicate, collaborate and work effectively in a global environment. Public speaking as a technology evangelist for Mastercard

About You:

Degree in Computer Science or related field

Strong foundation in algorithms, data structures and core computer science concepts.

Evidence of working with object-oriented development and design patterns.

Proficiency in multiple modern programming languages such as Java, Python, Ruby, Angular, Scala, etc.

Strong written and verbal English communications skills.

Strong analytical and excellent problem-solving skills.

Experience working in an Agile environment.

Experience with XP, TDD and BDD in the software development processes

Proficiency with cloud technologies (IaaS, PaaS, serverless technology, NoSQL databases), micro-service design, CI/CD, DevOps

Experience designing scalable fault tolerant platforms that are resilient to infrastructure failures

Experience with the strangulation pattern and anti-corruption layers to migrate monolithic systems into independent services

Expert in modern software design principles such as SOLID, DRY, and Single responsibility

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 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-115980