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

The Team
Customer Access is a dedicated collection of self-organizing, high performing, interdependent, co-located individuals representing different functional roles building the next generation of security products at Mastercard. This team leads with mission to provide overall stewardship of enterprise-grade application architecture and design within the context of holistic software development, including driving architecture and design decisions and building consensus around them.

Customer Access is looking for an experienced Senior Software Engineer with expertise in security, Java and Spring Boot to lead a team developing API and web security products . This team builds and maintains the security platform used by internal and external facing application across Mastercard.

The Role
A Senior Software Engineer specializing in security, Java, and Spring Boot is responsible for designing, developing, and maintaining secure and scalable applications. They lead technical projects, mentor junior engineers, and collaborate with cross-functional teams to deliver high-quality software solutions, carrying out the following responsibilities:

• Design and develop secure, high-performance applications using Java and Spring Boot.
• Implement and maintain security best practices, including authentication, authorization, and data protection.
• Lead technical projects, providing guidance and mentorship to junior engineers.
• Collaborate with product managers, designers, and other stakeholders to define and deliver software solutions.
• Perform code reviews, ensuring code quality and adherence to coding standards.
• Troubleshoot and resolve complex technical issues.
• Contribute to the continuous improvement of development processes and tools.
• Stay up-to-date with the latest security threats and technologies.
• Ensure adherence to software development lifecycle and DevOps principles.


About You
• High energy, detail-oriented, and self-motivated to drive results.
• Highly collaborative and organized.
• Strong verbal and written communication and interpersonal skills.
• Bachelor's or Master's degree in Computer Science or related field.
• 5+ years of experience in software development with a focus on Java and Spring Boot.
• Strong understanding of security principles and best practices.
• Strong understanding of software architecture and design principles
• Experience with common security frameworks and tools.
• Proficiency in designing and implementing RESTful APIs.
• Experience with relational databases and ORM frameworks.
• Familiarity with cloud computing platforms (e.g., AWS, Azure, GCP).
• Experience with agile development methodologies.
• Excellent problem-solving and communication skills.
• Experience with microservices architecture.
• Knowledge of containerization technologies (e.g., Docker, Kubernetes).
• Experience with CI/CD pipelines.

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 based on location, experience and other qualifications for the role and may be eligible for an annual bonus or commissions depending on the role. 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 new parent leave, up to 20 paid days bereavement leave), 10 annual paid sick days, 10 or more annual paid vacation days based on level, 5 personal days, 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, gender-inclusive benefits and many more.

Pay Ranges

O'Fallon, Missouri: $115,000 - $184,000 USD