Quality Assurance Engineer

• Cypress Test Automation
• Design, develop, and maintain automated end-to-end test suites using Cypress, with a focus on payment flows, checkout journeys, and transaction processing scenarios
• Implement the Page Object Model (POM) pattern for scalable test architecture across payment and software platform features
• Develop reusable custom Cypress commands, fixtures, and intercept strategies to simulate payment gateway responses, web hook events, and third-party integrations
• Integrate Cypress test suites into CI/CD pipelines for automated regression runs across payment processing environments
• Analyse and maintain test stability, resolving flaky tests and optimising run times
• especially for payment-critical paths
• API Automation & Testing
• Design and execute comprehensive API test suites using tools such as Postman, RestAssured, or Cypress, covering payment gateway APIs, transaction endpoints, and financial data services
• Validate REST and GraphQL APIs including request/response schemas, status codes, error handling, and payment-specific response structures (e.g. authorisation, capture, refund, chargeback flows)
• Perform contract testing, load testing, and negative scenario coverage for payment API endpoints
• including edge cases such as declined transactions, timeout handling, and partial captures
• Test integration with third-party payment providers (e.g. Stripe, Adyen, PayPal, or similar platforms), ensuring correct data exchange and fault tolerance
• Collaborate with backend engineers to review API specifications and identify edge cases early in the payment feature lifecycle
• Manual Testing & Test Strategy
• Create detailed test plans, test cases, and test reports for complex payment features, financial workflows, and software platform releases
• Perform exploratory, regression, smoke, and sanity testing across web, API, and payment surfaces
• including end-to-end transaction journeys from initiation to settlement
• Champion a risk-based testing approach, prioritising payment-critical paths and high-value financial scenarios to protect platform integrity
• Document and track defects with clear reproduction steps using tools such as Jira or Linear, with specific attention to financial data accuracy and compliance-related issues
• Cross-Browser & Cross-Platform Testing
• Execute and maintain cross-browser test coverage across Chrome, Firefox, Safari, and Edge
• including payment UI components such as card entry forms, 3DS authentication flows, and payment confirmation screens
• Leverage BrowserStack and Playwright for scalable cross-browser test execution across payment and checkout journeys
• Identify and report browser-specific rendering or functional inconsistencies affecting the payment experience
• Ensure consistent and secure user experience across desktop, tablet, and mobile viewports for all payment surfaces
• CI/CD Integration & DevOps Collaboration
• Configure and maintain automated test execution within CI/CD pipelines (GitHub Actions, Jenkins) for payment platform services and software solutions
• Implement test result reporting and failure notification workflows, with escalation paths for payment-critical test failures
• Work with DevOps to manage test environments, containerised test runs via Docker, and test data provisioning
• including synthetic payment data and sandbox environment configuration
• Contribute to shift-left testing initiatives, integrating quality checks at the earliest stages of payment feature development

• 3–5 years of hands-on experience in a software QA engineering role, ideally within a payment platform, fintech, or financial software environment
• Demonstrable experience testing payment systems, including payment gateways, transaction flows, refund processing, or financial data pipelines
• Familiarity with payment industry standards and concepts such as PCI-DSS, 3DS authentication, tokenisation, or PSD2 is a strong advantage
• Strong practical experience with Cypress for end-to-end test automation across complex, multi-step workflows
• Solid proficiency in JavaScript or TypeScript for writing and maintaining test scripts
• Proven experience in API testing and automation (REST / GraphQL), including financial or transactional APIs
• Demonstrable experience integrating tests into CI/CD pipelines
• Solid understanding of cross-browser testing strategies and tooling
• Experience with manual testing methodologies including exploratory and regression testing
• Familiarity with Agile / Scrum development workflows and sprint-based delivery
• Strong analytical and problem-solving skills with excellent attention to detail — particularly for validating financial data accuracy
• Clear verbal and written communication skills

Familiarity with payment industry standards and concepts such as PCI-DSS, 3DS authentication, tokenisation, or PSD2 is a strong advantage