Senior QA Automation / Manual Tester (SWIFT / SEPA / VISA) | Contract

We are looking for a Senior QA Automation / Manual Tester with a proven background in fintech, banking, or payment platforms. The role centers on validating SEPA, SWIFT, and Visa payment flows, including ISO 20022 messaging, 3DS2 authentication, and PCI DSS Level 1 compliance controls. The consultant will work across microservice and API layers, covering end-to-end transaction lifecycle testing, resilience validation, and audit-ready documentation within a complex, regulated payment environment.

Key Responsibilities:

• Test SEPA credit transfer flows, SWIFT MT / ISO 20022 message flows, and Visa card payment flows including 3DS2 authentication.
• Perform API, contract, schema, and integration testing at the microservice layer, including async/event-driven workflow testing across queues, retries, and DLQ.
• Execute structured test scenarios across SEPA, SWIFT, and Visa payment workstreams and validate end-to-end transaction lifecycle flows, reconciliation, settlement, and data consistency.
• Conduct resilience testing including retries, circuit breakers, DLQ, failover, and idempotency validation, as well as performance, load, and stress testing for platform stability.
• Develop, execute, and integrate automated test suites into CI/CD pipelines.
• Produce audit-grade test evidence and traceability documentation for PCI DSS compliance.
• Validate web, mobile, and cross-platform functional consistency and regression coverage.
• Collaborate with developers, DevOps, and security teams to identify, track, and verify defect resolution.

Must-Have Requirements:

• 5+ years of QA automation experience, with a minimum of 3+ years in fintech, banking, or payment platforms.
• Strong experience in API testing and microservice integration testing using Postman, REST Assured, or similar tools.
• Proficiency in Java, JavaScript, or Python for automation scripting and test development.
• Hands-on experience with automation frameworks such as Selenium, Cypress, or Playwright.
• Experience integrating automated tests into CI/CD pipelines using Jenkins, GitHub Actions, or equivalent tools.
• Hands-on experience testing SEPA, SWIFT, and Visa card payment flows, including ISO 20022 messaging.
• Solid understanding of PCI DSS compliance controls, OWASP security concepts, authentication, and encryption validation.
• Familiarity with AWS environments, including CloudWatch logging, monitoring, and observability validation.
• Strong understanding of resilience testing concepts including retries, failover, circuit breakers, DLQ, and idempotency.
• Experience producing structured, audit-ready QA documentation and test traceability evidence.

Duration: 6-9 months.