Job title: Senior QA Engineer (Mobile)Job type: ContractContract Length: 6 months (possible extension)Rate: Up to €400 per dayRole Location: Berlin, Germany (Hybrid – 2 days per week on-site)All candidates must be based in Germany, willing to work on a hybrid basis in Berlin, and able to work B2B/as a contractor. Those who cannot will not be consideredThe company:An established European fintech company providing payment infrastructure to e-commerce and retail businesses across multiple countries. The team you'd join supports mobile point-of-sale applications used by merchants in retail and hospitality settings.Tech stack:Current automation framework & language: Typescript and Webdriver.ioTooling: Java basedRole and Responsibilities:Test Android and iOS point-of-sale applications that connect with card payment terminals, receipt printers and barcode scannersBuild and maintain test automation in TypeScript, integrated with the team's test management toolingDesign and maintain test plans for new and existing features, keeping test case coverage up to dateTest communication between in-house applications, including customer-facing displaysCover API and database testing across teamsTake an active role in exploring AI tools to support day-to-day QA workJob Requirements:4+ years' experience testing mobile applications on iOS / AndroidExperience in test automation using TypeScript and platforms such as Sauce Labs, Appium, or similarKnowledge of data structures and databases, particularly PostgreSQL and SQLiteExperience testing APIs, for example with PostmanExperience testing hardware devices and inter-device communicationFintech, payments, retail or hospitality POS background is a plusNice to have:Experience with Playwright and Selenoid.Don't hesitate to apply if you'd like to find out more!

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