Senior Software Development Engineer in Test (SDET) Dublin (Hybrid) FinTech | Payments | SaaSGTreasury is building a new Payments Engineering team and hiring a Senior SDET to own quality end-to-end — shaping testing strategy, influencing engineers early, and driving quality into how systems are built, not just tested. This is not a checkbox-QA role. It's a hands-on, senior IC position with real ownership and visibility.What you'll be doingOwning and evolving the testing and quality strategyDriving shift-left practices alongside engineers and productBuilding and improving automation frameworks and CI/CD pipelinesActing as the quality authority for the team (no people management)Tech snapshotC# / .NET experience is requiredMicroservices & API-heavy systemsUI & API automation (Cypress / Playwright; some Selenium)CI/CD pipelines (Azure DevOps)Cloud: AzureThis role suits you if you:Are a Senior SDET / Software Engineer in Test / Quality EngineerHave tested and automated systems built in C# / .NETEnjoy ownership, technical influence, and working closely with engineersCare about quality outcomes, not just test coverageExperience in payments, fintech, or complex platforms is a plus, but not essential.If you want real ownership and the chance to shape quality in a product-driven engineering environment, we'd love to hear from you, apply directly or reach out.