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Business Rules, Lead Software Engineer

US: Mastercard Technologies, LLC
Fallon, MO Full Time
POSTED ON 11/23/2025
AVAILABLE BEFORE 1/23/2026
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 Business Rules, Lead Software Engineer 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 Business Rules Engineering & Strategy team is looking for a Lead Software Engineer to drive forth our mission of building robust IBM ODM Rule solutions that provide transaction level decisioning, alerting and notifications. Business Rules embed intelligence into the transactional cycle by leveraging scoring models, cohesive rule strategies and behavioral data, and when combined with our agile rule development & deployment capabilities, results in a competitive advantage for all stakeholders, in the entire payment ecosystem. Role Provide technical leadership, rule strategy design and product requirement elaboration expertise for fraud prediction applications, which include mission critical, high volume transaction processing systems. Oversee all changes and analyze new development requests; provide feedback on capabilities and effectiveness of rule-based solutions to all stakeholders. Own all aspects of communication as rule development cycle unfolds; develop reports and authoritative responses pertaining to your products & technical solutions. Ownership, creation and maintenance of all product documentation, and relevant "How To" technical process pages. Accountability, ownership and representation of your products and solutions in all facets of engagement with other groups. All About You The ideal candidate for this position should: Have a bachelor’s degree in Information Systems, Information Technology, Computer Science or Engineering or equivalent work experience. Have IBM Operational Decision Manager software experience Have current experience in delivering technical solutions and capabilities to meet business and product strategies, including a focused relationship with technical and business providers. Financial Services or Payments experience a plus. Direct experience with the development of custom software applications and services across a variety of technology selections and frameworks. Experience with software engineering concepts and methodologies, including agile lifecycles, testing automation, and behavior-driven development. Strong background in object-oriented architecture, design, and development. Direct Java experience preferred. Experience with multiple OO languages and SQL a plus. High-energy and detail-oriented, with the ability to function under pressure in an independent environment with a high degree of initiative and self-motivation to drive results; good at organizing and planning for several concurrent initiatives with conflicting needs. Interested in building solutions that help recognize and prevent payment fraud? Strong sense of curiosity, analytical problem solving and is passionate about the customer experience journey Flexible work style with the ability to quickly pivot to new priorities 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 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: $140,000 - $231,000 USD Everyone wants easier ways to pay; we invent them. Checkout lines are slow; we speed them along. Merchants want more sales; we give them data and insights. People need financial access; we connect them. Corporate purchasing is complicated; we make it simple. Commuters are busy; we speed them on their way. Governments need greater efficiencies; we help create them. Small businesses are virtual; we give them access to a world of buyers. Retailers want to fight fraud; we provide the tools.

Salary : $140,000 - $231,000

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