Mastercard

Mastercard

Posted via Workday

Software Engineer II

Apply by Nov 13, 2026

Posted Oct 16, 2026

Role at a glance

Job function
Software Engineering & IT Software Engineering
Salary
Not yet verified Check the description for pay details; an amount or pay period has not been verified.
Location
O'Fallon, Missouri, United States
Employment
Full-time

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Role Summary

AI-generated

The Software Engineer II develops software using Agile development practices, with an emphasis on secure, reliable, and high-performing solutions. The role contributes throughout the software development lifecycle and maintains ownership of the team's software.

What You'll Do

  • Write and test high-quality, secure, modular, functional, and testable code.
  • Contribute to software design, development, documentation, and testing.
  • Maintain ownership of the team's software, including its maintenance characteristics, runtime properties, dependencies, and build.
  • Communicate and collaborate effectively in a global environment.

Generated from the employer's posting. Verify important details before applying.

View full posting

Qualifications

Strong foundation in algorithms, data structures, and core computer science concepts; experience with object-oriented development and design patterns; proficiency in one or more modern programming languages; strong written and verbal English communication skills; strong analytical and problem-solving skills; working knowledge of an Agile environment.

Required

  • Strong foundation in algorithms, data structures, and core computer science concepts
  • Evidence of working with object-oriented development and design patterns
  • Proficiency in one or more modern programming languages
  • Strong written and verbal English communication skills
  • Strong analytical and excellent problem-solving skills
  • Working knowledge of an Agile environment

Preferred

  • Java

Original job description

Content provided by the employer

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

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.

MasterCard software engineering teams leverage Agile development principles, advanced development and design practices, and 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.

• Are you passionate about software engineering?
• Do you enjoy seeing the impact your code has on a wide range of customers, which improves their experience?
• Do you want to work for a company that offers above and beyond benefits including paid parental leave, flexible work hours, gift matching, and even volunteer incentives while encouraging your professional learning and development?
• Do you thrive in a place where you are continuously learning more while growing your skills and career?
• Do you want to join a Company that offers a competitive benefit-and rewards program that attracts, develops, and retains the most talented employees around the world?
• Do you want to join an inclusive culture where employees, in all their diversity, feel valued, respected, and who can bring their authentic selves to work? Learn more at Mastercard’s Corporate Sustainability Report.

About the Role:
• A hands-on engineer who writes and tests high-quality, secure code that is modular, functional, and testable.
• 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, dependencies, and build.
• Communicate, collaborate and work effectively in a global 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.
• Proficiency in one or more modern programming languages such as Java (preferred), Python, C++, etc.
• Strong written and verbal English communication skills.
• Strong analytical and excellent problem-solving skills.
• Working knowledge of an Agile environment.

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. THIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 01/13/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.

Pay Ranges

O'Fallon, Missouri: $92,000 - $147,000 USD

Mastercard

About the company

Mastercard

Large Enterprise

Mastercard is a global technology company in the payments industry, committed to empowering individuals and businesses through secure and efficient payment solutions. With a presence in over 210 countries, Mastercard connects consumers, financial institutions, merchants, and governments, enabling seamless transactions across various platforms. The company is at the forefront of innovation, focusing on enhancing financial inclusion and expanding access to digital payment technologies. Through its advanced network and partnerships, Mastercard continues to revolutionize the way people engage in commerce worldwide.