Our PurposeMastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.Title and SummarySenior Software EngineerRole SummaryWe are seeking a skilled Software Engineer with strong foundations across software design, testing, performance engineering, and operability. The role focuses on building scalable, secure, and high-quality applications while ensuring reliability and performance across the software lifecycle.Key Responsibilities• Software Design & Developmento Translate business and technical requirements into scalable, maintainable, and secure designso Develop and maintain high-quality software solutions using modern engineering practices• Architecture Supporto Contribute to system architecture discussions, ensuring alignment with scalability, performance, and security standardso Apply established architectural patterns and design principles• Quality Engineeringo Design and execute unit, functional, and integration testso Ensure high test coverage and reliability across services and applicationso Drive defect prevention through early testing practices• Performance Engineeringo Analyze and optimize application performance under varying workloadso Conduct performance testing, tuning, and monitoring to meet SLAs• Secure Coding & Complianceo Follow secure coding practices to prevent vulnerabilitieso Ensure adherence to enterprise security standards and guidelines• Code Quality & Reviewso Participate in peer code reviews to ensure maintainability, readability, and adherence to standardso Continuously improve code quality practices• Operability & Reliabilityo Design systems with observability, monitoring, and operational readiness in mindo Ensure systems are maintainable and supportable in production• Problem Solving & Troubleshootingo Diagnose and resolve issues across systems and applicationso Minimize downtime through effective analysis and resolutionRequired Skills & Qualifications• Solid understanding of:o Software Design & Development principleso Data Structures and efficient data handlingo Testing strategies: Unit, Functional, and Integrationo Performance engineering and optimization techniqueso Secure coding practices• Hands-on experience in:o Code reviews and quality improvement practiceso Troubleshooting distributed systems and applicationso Building reliable and operable software systemsCorporate Security ResponsibilityAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:Abide by Mastercard’s security policies and practices;Ensure the confidentiality and integrity of the information being accessed;Report any suspected information security violation or breach, andComplete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.