MasterCard
Job Type : Full Time, Part Time
Date Posted : 4 November 2025
Our Purpose
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
Senior Software Engineer
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
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 characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment 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.
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.
In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more.
Pay Ranges
O'Fallon, Missouri: $115,000 - $184,000 USD
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