Software Engineer

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
Software Engineer
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.
Overview
Payments Network Technology is seeking a Software Engineer in Test to design, develop, and maintain automation solutions for payment processing platforms. The role focuses on building scalable test frameworks and automated validation for authorization, clearing, tokenization, APIs, user interfaces, and end-to-end payment transaction flows.
Roles and Responsibilities• Design, develop, and maintain reusable automation frameworks using Java and modern test automation tools.• Build automated functional, API, integration, regression, and UI test suites.• Develop automated validation for ISO 8583 messages, authorization, clearing, tokenization, and payment processing workflows.• Translate business requirements and user stories into effective automated test coverage.• Integrate automated tests into CI/CD pipelines and release quality gates.• Analyze failures, troubleshoot issues, and partner with software engineers to drive resolution.• Manage test data, environments, and automation assets to support reliable and repeatable execution.• Improve automation coverage, framework capabilities, and engineering efficiency.
Essential Skills• Strong programming skills in Java with experience developing automation frameworks and test utilities.• Hands-on experience with Cucumber, Selenium, Karate, JUnit/TestNG, Rest Assured, or similar automation technologies.• Experience testing REST APIs, microservices, web applications, and database-driven systems.• Knowledge of Git, CI/CD pipelines, DevOps practices, and modern software development methodologies.• Experience with SQL and test data management.• Understanding of ISO 8583 messaging, authorization, clearing, tokenization, or payment processing is preferred.• Scripting experience using Python, Shell, or similar technologies is a plus.
All About You• Bachelor's degree in Computer Science, Engineering, or related field, or equivalent practical experience.• Hands-on engineer with a passion for software quality, automation, and continuous improvement.• Experience working in Agile environments across the software development lifecycle.• Strong communication, collaboration, debugging, and problem-solving skills.• Ability to work effectively with globally distributed engineering, product, architecture, and operations teams.• Experience applying AI-assisted engineering tools, including GitHub Copilot and Claude CLI.• Payments or financial services domain experience is preferred.
Corporate Security Responsibility
All 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, and
• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.