Job Description
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
Lead Software Engineer
Overview
This is an exciting opportunity for you to join Mastercard on the global credit card authorization team. The system facilitates billions of transactions among issuers acquirers and service providers. You will have the chance to lead projects that enhance this system each release. We are looking for engineers that are passionate about design and development with constant focus on quality.
Responsibilities• Partner with Product Management to elaborate features stories and test strategy for each initiative• Create technical designs and assign work to developers• Develop complex stories in C and write unit tests in C++ (Google Test)• Be a quality gate by leading code and design reviews• Collaborate with other Principals and Leads to define interfaces and interactions between systems• Advise on implementation strategy for successful deployment• Implement development process improvements and automation• Coach and develop junior employees• Deliver department and external presentations
All About You• Have you written many lines of code in C or C++?• Do you like solving complex challenges?• Have you set technical direction for your team and mentored junior engineers?• Do you have experience in automation (CI/CD)? • Have you developed software for Linux operating systems?• Do you have experience and prefer working on an Agile team?• Have you worked on embedded or real-time distributed systems?• Are you passionate about quality and engineering standards?
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: $140000 - $231000 USD
Top Skills
What the Team is Saying


What We Do
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers we’re building a resilient 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.
Why Work With Us
We live the Mastercard Way: creating value in the communities we touch growing together through the opportunities we see and moving fast to innovate and scale. Our collaborative culture and our passionate people are the key to what we do driving meaningful change as one team and connecting everyone to priceless possibilities.
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Date Posted
04/26/2026
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