Senior Software Engineer (Full-Stack - Java, React)

Our Purpose Mastercard 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 Summary Senior Software Engineer (Full-Stack - Java, React) Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

The AI & Decision Engineering Platform powers intelligent, real-time decisioning for Mastercard’s fraud prevention and identity validation solutions. This program enables streaming analytics, governed decision-making, and outcome management with business agility at global scale. Our platform leverages business rules engines, AI-driven decisioning, streaming big data clusters, in-memory data grids, APIs, and intuitive UIs to deliver decisions in milliseconds across billions of transactions worldwide. As a Senior Software Engineer, you will play a critical role in designing and implementing high-performance, cloud-ready solutions. You’ll mentor team members while remaining hands-on with coding, testing, and design—helping shape the next generation of Mastercard’s decisioning capabilities. This is a hybrid position based in Vancouver, requiring three days on-site per week. We are looking for a Senior Software Engineer to join our AI & DPE platform for the Decision Operations product in the Vancouver office. • Are you a technical programmer with experience working on high performance applications? • Are you excited about getting a 360 degree view of the coding world - writing code to develop a piece of code as well as write code to test it? • Do you want to be part of a team which helps prevent fraud on every Mastercard transaction in this world? Role   • Own software delivery tasks (design, development, test, deployment, support, documentation, configuration) at an application/software component level • Full stack developer that can code front end and REST API/backend applications       • Participate in all the scrum ceremonies using SAFe Agile methodology. • Drive code/design/process trade-off discussions within their team when required • Drive adoption of engineering principles, technology standards and best practice, and review coding, test, and automation work of team members • Develop complete understanding of end-to-end technical architecture and dependency systems • Mentor and guide new and less-experienced team members • Write code to do unit testing, mutation testing, integration testing, functional and regression testing.     • Provide support by troubleshooting production incidents and implementing corrective and preventive actions   • Share and seek knowledge within their Guild/Program to drive reuse of patterns/libraries/practices and enhance productivity All About You • Experienced developer with ability to write secure code in three or more languages (e.g. Java, React, SQL) and familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT) and vulnerability management •