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Senior Software Engineer

Mastercard

Mastercard

Software Engineering
O'Fallon, IL, USA
Posted on May 24, 2025

Job Title:

Senior Software Engineer

Overview:

Who is Mastercard?

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.

About the Role

MDES is looking for strong, innovative Sr. Software Engineers to develop Mastercard's next generation of Digital Payment products that change how our customers choose to pay. We are looking for engineers who can bring unique perspectives and innovative ideas to all areas of development and are interested in continuing to improve our platform through the ever-changing technology landscape. In this role, you will work on multiple projects, which are critical to Mastercard’s role in the Digital Payment Space, leveraging Pivotal Cloud Foundry and microservice architecture.

An ideal candidate is someone who works well with a cohesive team-oriented group of developers, who has a passion for developing great software, who enjoys solving problems in a challenging environment, and who has the desire to take their career to the next level. If any of these opportunities excite you, we would love to talk.

Role

· Hands-on developer who writes high quality, secure code that is modular, functional and testable.
· Create or introduce, test, and deploy new technology to optimize the services
· Perform system maintenance, production incident problem management, identification of root cause, remediation of the problems. Drives measurable improvements in the maintenance, operational and runtime characteristics of your team’s software.
· Select appropriate technical frameworks and solution delivery methodology.
· Adapt to the technical artifact templates per the needs of the project and technology. Contribute ideas to help ensure that required standards and processes are in place. Maintain solution and technology road maps.
· Research and evaluate current and upcoming technologies and frameworks.
· 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.
· Provides feedback on peer design and code includes optimization and simplification recommendations.
· Must have the ability to work in a team, with collaboration providing more cross-functionality with other internal/external team.
· 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.
· Ensure adherence to established quality control practices and software development processes.
· Effectively communicate with team members, management, business owners, and other stake holders.

All About You

· Advanced knowledge and understanding of Software Engineering Concepts and Methodologies is required
• Experience with Java, JEE, Java Messaging Service
· Evidence of working with object-oriented development and design patterns.
· Proficiency in multiple modern programming languages such as Java, Spring Boot framework, RDBMS – Oracle/SQL, Webservice development
· Strong communication skills -- both verbal and written – and strong relationship, collaboration skills and organizational skills
· Strong analytical and excellent problem-solving skills.
· Experience working in an Agile environment.
· Proficiency with cloud technologies (IaaS, PaaS, serverless technology, NoSQL databases), micro-service design, CI/CD, DevOps
Preferred:
• Degree in technical related field
• Interest and ability to learn new coding languages, frameworks, and paradigms as needed