Software Engineer II

MastercardO'fallon, MO
1d$92,000 - $147,000

About The Position

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. 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. The Remote Payment and Presentment System team is seeking a Software Engineer II to help advance our customer experience strategy through continuous innovation and problem-solving. Our platform is a well-established electronic payment network, founded in 1987, that serves as a central hub for routing, clearing, and settling consumer bill payments across the United States. It connects financial institutions, walk-in payment providers, and billers along with their service partners, including treasury institutions and processors, to enable seamless, reliable payment transactions. The ideal candidate for this role is a highly motivated and technically skilled software engineer who thrives in a fast-paced environment, demonstrates strong problem-solving abilities, and is passionate about building scalable, high-quality payment solutions that enhance the customer experience.

Requirements

  • Experience developing front-end applications using Angular, including writing and executing test scripts
  • Strong proficiency in TypeScript, Java, and SQL, with experience building microservices using Spring Boot
  • Familiarity with secure coding standards (e.g., OWASP, CWE) and code quality tools (e.g., Sonar, Checkmarx)
  • Experience with Git-based workflows, including branching strategies and peer code reviews
  • Ability to design and implement unit, integration, and service-level tests to ensure code quality and coverage
  • Understanding of core design patterns and modern application architectures (APIs, event-driven, microservices)
  • Experience participating in requirement analysis, estimation, and agile delivery (Scrum, Kanban, SAFe)
  • Knowledge of CI/CD practices, including automation, pipelines, and containerization
  • Solid understanding of building and operating secure, scalable, and reliable systems

Responsibilities

  • Follow established processes and best practices across the software delivery lifecycle, including development, testing, and deployment
  • Deliver assigned work with quality and timeliness, demonstrating self sufficiency in completing tasks while seeking guidance from senior team members when appropriate.
  • Proactively request and incorporate code reviews to continuously improve code quality
  • Develop a strong understanding of the broader system landscape and end-to-end architecture within owned areas
  • Contribute ideas and actionable feedback to enhance processes, performance, and product quality
  • Apply Mastercard technology standards and policies consistently in day-to-day work
  • Actively learn and share knowledge by participating in Guilds and engineering community initiatives

Benefits

  • 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
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