Software Engineer II
Job in
O'Fallon, St. Charles County, Missouri, 63366, USA
Listed on 2026-02-18
Listing for:
MasterCard
Full Time
position Listed on 2026-02-18
Job specializations:
-
Software Development
Software Engineer, Full Stack Developer, Java Developer, Cloud Engineer - Software
Job Description & How to Apply Below
*** Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
*** Title and Summary**### Software Engineer II### Overview:
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 strengths, views, and experiences drives a global and collaborative culture of inclusion and a sense of belonging.
About the Role At Mastercard Corporate Solutions, we empower businesses to succeed through innovative, trusted payment solutions that deliver a seamless, digital-first experience around the world. We’re building a global business-to-business (B2B) technology platform to help businesses of all sizes streamline how they manage payments when buying or selling products and services.
The Mastercard Corporate Solutions team is looking for a Software Engineer II to drive our customer experience strategy forward by consistently innovating and problem-solving. The ideal candidate is passionate about the customer experience journey, highly motivated, intellectually curious, and analytical.
Mastercard software engineering teams leverage Agile development principles, advanced development and design practices, and bring an obsession with security, reliability, and performance to deliver solutions that delight our customers. We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing payments.
Role - A hands-on full stack engineer that can code and build high quality secure front end and REST API/backend that is modular, functional, and testable.
- Contribute to all parts of the software’s development including design, development, test, deployment, support, documentation, configuration - Participate in all the scrum ceremonies using Agile methodology.
- Have strong ownership of your team’s software and are deep in the maintenance characteristics, runtime properties, dependencies, and build.
- Communicate, collaborate, and work effectively in a team environment.
All About You - Strong foundation in algorithms, data structures, and core computer science concepts.
- Evidence of working with object-oriented development and design patterns.
- Full stack developer with ability to write secure code in backend & frontend programming languages (Java, JavaScript, Angular, SQL) and familiar with secure coding standards and vulnerability management - Good knowledge of Spring, Spring Data JPA, REST and other frameworks.
- Understands and builds test code at unit level, service level, and integration level to ensure code and functional coverage (e.g. JUnit, Mockito, Jasmine etc) - Strong written and verbal communication skills.
- Strong analytical and excellent problem-solving skills - Self Starter, Proactive and Passionate about continuous improvement and delivering results - Thrives in an environment that is fast-paced and customer-oriented - Working knowledge of an Agile environment.
- Bachelor’s degree in computer science, Software Engineering, or a related field preferred (This role operates in a hybrid capacity to come onsite 3x week in our O'Fallon location)### Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other…
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