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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 in Test, Financial Crime Solutions (Crypto)

Overview
Are you passionate about software quality and looking for an opportunity to drive real impact? Do you believe Quality Engineers should be active contributors to development, not just testers?

Join our Crypto Secure team, where you'll play a vital role in preventing fraud and building cutting-edge technology. We believe in shifting left, embedding quality at every stage, and ensuring our automation strategy is robust, scalable, and future-proof.

As a Senior Software Engineer in Test, you'll be more than just an automation engineer—you'll be a technical leader within the team, influencing test strategy, mentoring engineers, and championing best practices in automated, performance, and accessibility (A11y) testing.

Role

Lead Quality & Test Automation

• Own and evolve our test automation strategy, ensuring it integrates seamlessly into our CI/CD pipeline.
• Develop, maintain, and improve automated tests using Cypress (JavaScript), Java, RestAssured, JMeter, and SQL.
• Implement and advocate shift-left testing, embedding quality practices from the start of development.
• Ensure our a11y testing is comprehensive and meets WCAG compliance.
• Identify, design, and develop new test frameworks and tools to improve efficiency and test coverage.
• Provide hands-on leadership in performance testing, working with developers to optimize system performance.
• Be an Active Contributor to Development
• Work collaboratively within an Agile team—partnering with developers, PM-Ts, and designers to deliver high-quality software.
• Challenge requirements, raise potential risks early, and ensure full test coverage.
• Define and track quality metrics to measure and improve testing effectiveness.

Mentor & Influence

• Be a champion for quality—mentoring developers and other QEs on best practices for test automation and clean coding principles.
• Drive discussions on continuous improvement of test strategies and tools.
• Lead by example, coaching team members on writing reliable, maintainable automated tests.

All About You
Technical & Automation Skills

• 6+ years of experience in test automation and software quality engineering.
• Proficiency in Java and Spring, with strong experience in API automation using RestAssured.
• UI automation experience with Cypress, Playwright, or similar frameworks.
• Solid understanding of performance testing with JMeter or similar tools.
• Strong SQL knowledge and experience testing relational databases.
• Familiarity with CI/CD pipelines and experience integrating tests into Jenkins, or similar tools.
• Experience with TDD/BDD methodologies.
• Awareness of security and compliance testing, particularly in financial or fraud prevention applications.

Mindset & Collaboration

• Proactive, technical leader—you take ownership of quality and aren't afraid to challenge the team to improve it.
• Great communicator—you can clearly articulate test strategies, risks, and requirements to both technical and non-technical stakeholders.
• Passionate about automation—you constantly seek better ways to improve test coverage and efficiency.
• Strong problem-solving skills—you thrive on diagnosing and fixing issues early.
• A mentor and coach—you help raise the testing maturity of the entire team.

Why You'll Love This Role

• You'll be a key player in building fraud prevention technology with real-world impact.
• You'll own and shape the automation strategy for a high-visibility product.
• You'll work in a collaborative, fast-paced Agile team where your contributions truly matter.
• You'll get to mentor engineers and influence the future of quality in the team.

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.