Mid‑Senior Java Software Engineer

About the role

The Software Engineer II at Mastercard will design and build scalable, cloud‑ready Java applications supporting the Cross Border payments program. You will work on micro‑services, contribute to architecture decisions and ensure high‑quality, secure code.

Key responsibilities

• Design software components by translating product requirements into scalable technical solutions.
• Contribute to software architecture decisions and technical design discussions.
• Build modular, extensible, maintainable, and performant applications using Java, Spring and related technologies.
• Develop and maintain unit, functional and integration tests, applying secure coding practices.
• Participate in code reviews, support system performance optimization and reliability initiatives.
• Research new technologies, create proofs‑of‑concept and drive technical experimentation.
• Troubleshoot production issues using structured root‑cause analysis and provide ongoing support.

Required profile

• Proven experience writing secure Java code and familiarity with OWASP, CWE and SEI CERT standards.
• Strong problem‑solving and communication skills with fluent English.
• Ability to mentor engineers, estimate work and prioritize based on business value.
• Experience with CI/CD pipelines, release orchestration and performance monitoring.

Required skills

• Java, Spring, Spring Boot, JPA
• Angular, SQL, Git (Gitflow)
• Test‑driven development (TDD) and behavior‑driven development (BDD)
• CI/CD tools such as Jenkins, XL Release
• Static analysis tools (Sonar, Checkmarx, Zally)