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Principal Software Engineer-TS

Mastercard

Principal

Listed on Mastercard’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

A hands-on technical leader role at Mastercard building real-time payments infrastructure, requiring deep expertise in distributed systems and Java-based microservices. The position balances 70% coding and architecture work with 30% team coaching, and demands someone who drives innovation across payment systems while mentoring engineers and solving enterprise-scale challenges.

Our summary, not Mastercard’s wording. The full posting is on their site.

What they ask for

Required

  • Expert in designing highly resilient and scalable distributed systems
  • Deep experience with databases, messaging, and caching technologies
  • Proven track record building systems in Java, Spring Boot, microservices, and APIs
  • Understanding of secure coding standards and vulnerability management
  • DevOps best practices expertise to guide developers
  • Knowledge of CI/CD automation, containerization, and virtualization
  • Ability to develop and evangelize reference architectures
  • Experience leading and coaching engineering teams
  • Proficiency with advanced design patterns and their trade-offs
  • Skills to articulate complex architecture to technical and business stakeholders

Nice to have

  • Infrastructure as Code and cloud-first development experience
  • Experience with advanced test setups including A/B testing and canary releases
  • Performance engineering background for scaling applications
  • Architecture and cost analysis skills for cloud environments
  • Experience defining chaos engineering and operational testing practices

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