Senior Quality Assurance Automation Engineer - Payment Systems

Employment Type: Full-timeNotice Period: Immediate joiners preferred; candidates serving notice with LWD by the end of this month may apply.Job Overview:We are looking for an experienced Senior QA Automation Engineer with strong expertise in Java-based test automation, API testing, microservices, AWS, and payment systems.The ideal candidate will have hands-on experience developing scalable automation frameworks using Java, Selenium, RestAssured, and TestNG, along with practical knowledge of payment networks such as ACH, RTP, FedNow, Zelle, SWIFT, and ISO 20022.Key Responsibilities:1. Test Automation & Framework Development:- Design, develop, and maintain Java-based automation frameworks for API, microservices, and end-to-end testing.- Build automated test suites using Selenium WebDriver, RestAssured, and TestNG.- Develop reusable automation components, utilities, libraries, and test data frameworks.- Automate functional, regression, integration, system, and end-to-end test scenarios.- Improve automation coverage, execution efficiency, and framework maintainability.2. API & Microservices Testing:- Perform comprehensive testing of REST APIs and microservices.- Validate request and response payloads, status codes, authentication, authorization, error handling, and data integrity.- Test synchronous and asynchronous service interactions.- Perform integration testing across payment applications, APIs, databases, messaging systems, and external platforms.- Validate service reliability, retries, timeouts, and failure scenarios.3. Payment Systems Testing:- Validate end-to-end payment transaction lifecycles across ACH, RTP, FedNow, Zelle, SWIFT, and ISO 20022.- Test payment initiation, validation, routing, processing, settlement, acknowledgements, and exception handling.- Validate payment statuses, reversals, returns, retries, cancellations, and failed transactions.- Test payment message formats, transformations, and financial data structures.- Identify edge cases involving duplicate transactions, timeouts, partial failures, retries, and reconciliation.- Ensure transaction integrity across distributed payment platforms.4. AWS & Cloud Testing:- Perform application and QA testing in AWS environments.- Validate cloud-based applications, APIs, microservices, and integrations.- Analyze application logs and troubleshoot failures using AWS monitoring and logging capabilities.- Collaborate with DevOps and SRE teams to investigate environment and deployment-related issues.5. QA Strategy & Leadership:- Define and implement QA strategies for payment applications and microservices.- Establish automation-first testing practices and identify opportunities for test automation.- Define testing approaches for functional, integration, regression, API, performance, and end-to-end testing.- Establish automation standards, coding guidelines, and framework best practices.- Review test plans, test cases, automation scripts, and execution results.- Mentor QA engineers and drive continuous improvements in testing quality.6. CI/CD & Continuous Testing:- Integrate automated test suites into CI/CD pipelines.- Configure automated test execution within build and release workflows.- Support continuous testing, shift-left testing, and automated quality gates.- Collaborate with DevOps teams to resolve pipeline and automation failures.Required Skills & Qualifications :- 6 - 10 years of experience in Software Quality Assurance and Test Automation.- Strong hands-on experience with Java-based test automation.- Expertise in Selenium WebDriver, RestAssured, and TestNG.- Experience designing and developing automation frameworks.- Strong experience in REST API and microservices testing.- Practical knowledge of payment systems and transaction processing.- Experience with payment rails such as ACH, RTP, FedNow, Zelle, SWIFT, and ISO 20022.- Experience validating end-to-end payment transaction lifecycles.- Hands-on QA experience in AWS environments.- Strong understanding of functional, regression, integration, and end-to-end testing.- Experience with Agile/Scrum methodologies.- Strong analytical, debugging, and troubleshooting skills.Good to Have :- Experience with Maven or Gradle.- Knowledge of JSON, XML, Postman, SQL, and Kafka/messaging systems.- Exposure to CI/CD tools such as Jenkins and GitHub Actions.- Familiarity with Git, Docker, and Kubernetes.- Performance testing experience.- Experience working in Banking, Financial Services, or FinTech environments.Ideal Candidate Profile :- Strong understanding of payment processing workflows and financial transaction validation.- Ability to develop scalable and maintainable automation frameworks.- Experience collaborating with engineering, product, architecture, DevOps, and business teams.- Strong ownership, communication, and problem-solving skills. (ref:hirist.tech)