Senior Software Engineer

4 weeks ago

O'Fallon, Missouri, United States MasterCard Full time
Job Title: Senior Software Engineer

We are seeking a highly skilled Senior Software Engineer to join our team at Mastercard. As a key member of our engineering team, you will be responsible for designing, building, and operating large-scale distributed systems using event-driven architectures.

Key Responsibilities:

  • Design and implement highly resilient large-scale distributed systems
  • Write code to build and enhance applications/services, conduct code-reviews, and other standard development practices
  • Drive prioritization decisions and trade-offs through working with product partners
  • Automate and simplify all aspects of software delivery and development
  • Introduce new technologies and architectures aligning to enterprise guidelines
  • Provide coding and design guidance to junior team members
  • Own complex problems having dependency across services and facilitate cross-functional team interactions to drive resolution
  • Define, design, and develop procedures and solutions at a service level to meet business requirements/enhancements
  • Participate and contribute to team's agile process and decisions

Requirements:

  • Excellent programming skills (OOP, SOLID, 12-factor) - Java preferred
  • Experience with distributed systems architecture and implementation
  • Familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT) and vulnerability management
  • Experience with broker technologies (Kafka/NATS) is a plus
  • Experience in Continuous Integration (CI) and Delivery (CD) concepts, and capabilities to support automation, pipelines, virtualization, and containerization
  • Infrastructure as code and cloud-first software development knowledge experience preferred
  • Skills in test-driven and behavior-driven development (TDD and BDD) to build just enough code and collaborate on desired functionality
  • Understanding of use cases for advanced design patterns (e.g., service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading) to implement efficient code
  • Skills to elaborate and estimate non-functional requirements, including security (e.g., data protection, authentication, authorization), regulatory, and performance (SLAs, throughput, transactions per second)
  • Able to perform debugging and troubleshooting to analyze core, heap, thread dumps and remove coding errors

About Mastercard:

Mastercard is a global technology company in the payments industry. We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible.

We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results.

We are committed to building and scaling products and applications that transform payments of any type. Real-time payment technology is central to this strategy.

We are looking for a lead software engineer to implement large-scale distributed systems based on reactive architectures.

What We Offer:

Mastercard is an 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 offer a competitive base salary, annual bonus, and comprehensive benefits package, including insurance, flexible spending account, health savings account, paid leaves, and 401(k) with a best-in-class company match.

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