Senior Software Engineer

Senior Software Engineer

Overview:
Mastercard Send (part of the Mastercard Move portfolio) enables near real-time money movement across billions of card, bank, and digital accounts globally. Program participants (banks, businesses, and digital players) use Send to modernize domestic and cross-border payments, making funds available to recipients almost instantly. Send supports critical use cases such as disbursements, gig-economy payouts, and person-to-person transfers, accelerating a structural shift toward payment immediacy where timely access to funds can be economically and socially transformative.
Send has achieved strong adoption across banks, fintechs, and digital ecosystems and represents a significant growth engine within Mastercard. The program is on track to generate over $900M in revenue in FY2026 and is expected to grow by 50% over the next three years. For engineering applicants, Send offers the opportunity to build and operate a large-scale, real-time distributed system where reliability, performance, and trust directly translate into measurable business outcomes and meaningful socio-economic impact.

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 View email address on us.fitly.work 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.

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.

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