Senior Software Engineer

Who you are

• Bachelor's degree in Computer Science, Engineering, Information Technology, or related field
• Strong software engineering experience with Java and modern application development practices
• Experience developing applications and services using Spring Boot and API-driven architectures
• Strong programming skills in Java, Python, C#, JavaScript, or similar languages
• Experience with automated testing frameworks such as Selenium, RestAssured, JUnit/TestNG and Cucumber/JBehave/Karate
• Experience testing REST APIs and microservices
• Knowledge of Agile/Scrum development methodologies
• Familiarity with CI/CD tools such as Jenkins, GitHub Actions, GitLab CI, or Azure DevOps
• Experience using source control systems such as Git
• Strong analytical, debugging, and problem-solving skills
• Experience with cloud-native architectures and modern observability platforms
• Knowledge of secure coding practices and software quality metrics
• Experience mentoring engineers and influencing quality standards across teams
• Experience supporting highly available, mission-critical platforms within regulated environments
• Experience with security and compliance testing

What the job involves

• The Decision Management Program (DMP) team is looking for a Senior Software Engineer to support the Authorization Decisioning product and help deliver highly scalable, secure, and reliable solutions across Mastercard's global payments network
• Authorization Decisioning combines the power of Mastercard's Decision Management Platform with real-time authorization data to enable intelligent decisioning at scale
• The team is focused on building high-quality products that transform transaction intelligence into immediate operational action for customers around the world
• This role is primarily focused on Quality Engineering, with an approximate allocation of 70% Quality Engineering and Test Automation responsibilities and 30% software development responsibilities
• The successful candidate will drive quality through automation-first practices while contributing to the design, development, and delivery of scalable backend services and platform capabilities
• Design and implement automated test frameworks and reusable test suites
• Develop and execute functional, integration, API, regression, end-to-end, and performance tests
• Participate in requirements reviews, story grooming, and sprint planning activities
• Define and document test strategies, test plans, and acceptance criteria
• Collaborate with developers to identify, troubleshoot, and resolve defects
• Integrate automated tests into CI/CD pipelines
• Analyze test results and provide quality metrics and recommendations
• Ensure software meets business, security, scalability, and performance requirements
• Drive continuous improvement of testing processes, tools, and methodologies
• Mentor junior engineers and promote quality engineering best practices
• Participate in release validation, deployment verification, and production readiness activities