Senior Software Engineer

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
Our Purpose:
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is 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. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview:
The 'Services within Mastercard' division is responsible for acquiring, engaging, and retaining customers by managing fraud and risk, enhancing cybersecurity, and improving the digital payments experience. We provide value-added services and leverage expertise, data-driven insights, and execution.
Identity Solutions (a program within Services), is the global standard in identity verification, providing businesses worldwide the ability to link any digital transaction to the human behind it. Our Identity Engine, the first and only of its kind, uses complex machine learning to combine features derived from the billions of transactions within our proprietary network and the data from our graph to deliver industry leading risk assessment solutions.
We are the Identity Solutions Services Platform Engineering team responsible for building the capabilities required to package our customer-facing api products.
We are looking for Senior Software Engineer who can contribute to team in developing REST api.
Role & Responsibilities:• Work as part of a development Scrum team in an Agile environment that is geographically diverse• Responsible for the analysis, design, development, and delivery of software backend (REST API) solutions• Define requirements for new applications and customization adhering to Mastercard standards, processes, and best practices• Develop, customize, and test applications to integrate to Mastercard's specifications
All About You:
The ideal candidate would have the following skills:• Advanced Java development skills• Advanced skills and knowledge of Java 17+, Spring Boot, JPA, Hibernate• Practical knowledge of LLMs for code generation, refactoring, and review• Experience using AI-assisted tools to design and evolve software features• Familiarity with MCP servers enabling context-aware code• Experience in building Restful services and clients using Spring framework• Experience working with Junit/Mockito/Spring Test• Experience with JBehave / Cucumber BDD testing/ Spock• Self-motivated with the ability to accomplish tasks with minimal direction• Experience mentoring providing technical support to junior team members• Ability to innovate and develop new approaches to complex design problems• Basic security knowledge (TLS, Encryption, hashing, JWT)• Knowledge of cloud platforms like Azure or AWS or PCF
The ideal candidate may also possess some of these secondary skills:• Experience with NoSQL databases• Experience with Git, Jenkins, Maven/Gradle• Experience with File Transfer Service (FTP/SFTP)
#AI3
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 [email protected] 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. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Pay Ranges
O'Fallon, Missouri: $115,000 - $184,000 USD