Software Engineer II

About the role

Mastercard is seeking a Software Engineer II to design and build scalable, cloud‑ready Java applications that support its global payments ecosystem. The role involves full‑stack development of microservices, ensuring high performance, security, and operational readiness.

Key responsibilities

• Design software components by translating product requirements into scalable technical solutions.
• Contribute to architecture decisions and technical design discussions.
• Build modular, extensible, maintainable, and performant applications.
• Create and maintain unit, functional, and integration tests.
• Apply secure coding practices throughout the development lifecycle.
• Participate in code reviews and uphold engineering quality standards.
• Support system performance optimization, scalability improvements, and reliability initiatives.
• Design applications with observability, operational readiness, and supportability in mind.
• Research new technologies, frameworks, and engineering practices.
• Conduct proof‑of‑concepts and technical experimentation.
• Troubleshoot application and production issues using structured root‑cause analysis.
• Provide production support throughout the application lifecycle.
• Collaborate with cross‑functional stakeholders to deliver business solutions.

Required profile

• Solid understanding of Java, J2EE, Spring, Spring Boot, Kafka, RESTful Web Services, and JPA.
• Experience developing cloud‑ready applications and microservices.
• Understanding of software architecture and design principles.
• Experience with automated, unit, and integration testing.
• Familiarity with performance optimization and scalability concepts.
• Knowledge of secure software development practices.
• Experience participating in code reviews.
• Strong analytical and troubleshooting skills.
• Exposure to CI/CD and Test‑Driven Development practices.
• Experience or exposure to AI‑assisted applications, autonomous agents, or agentic workflows.
• Agile Scrum experience.

Required skills

• Java
• J2EE
• Spring Framework
• Spring Boot
• Kafka
• RESTful Web Services
• JPA
• Microservices architecture
• Cloud‑ready application development
• Automated testing (unit & integration)
• Performance optimization
• Scalability engineering
• Secure coding practices
• CI/CD pipelines
• Test‑Driven Development
• AI‑assisted application concepts
• Agile Scrum methodology