ABOUT US
Unzer is a leading European fintech company with a mission to simplify international payments for e-commerce and retail businesses. Our brand was formed from 13 companies that now contribute to building a unique product covering the entire payment flow.
At Unzer, we are driven by the belief that customers should enjoy a seamless shopping experience, no matter where they choose to shop. We are a team of over 700 experts of 55 different nationalities, dedicated to creating a state-of-the-art unified commerce platform. Our goal is to enable businesses to delight their customers with a seamless payment experience.
Whether you're a tech enthusiast, payment expert, or a dedicated support professional, we are looking for individuals who are passionate about making a difference.
Our offices: We are based across Austria, Denmark, Germany and Luxembourg with a HQ in Berlin.
ABOUT THE TEAM
The Unzer Unified POS team builds our native point-of-sale apps for iOS (Swift) and Android (Kotlin). Merchants use them every day at the counter, in shops and restaurants. Our apps talk to real hardware: card payment terminals, receipt printers, barcode scanners, cash drawers and fiscal devices. A bug here doesn't just show a wrong screen. It can stop a merchant from taking a payment.
We're looking for a QA Engineer focused on mobile test automation who also enjoys working hands-on with hardware. You'll build and own automated tests across both platforms. You'll also be the person who knows exactly what happens when the printer runs out of paper halfway through a receipt, or when the terminal drops its connection during a card payment.
What your work will look like:
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Build and maintain our automated end-to-end tests for the native iOS (Retail and Gastro) and Android POS apps, using TypeScript, WebdriverIO and Appium.
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Own the test pipelines in GitHub Actions: release and regression runs on Sauce Labs real devices and our self-hosted runners, plus Allure reporting and Jira/Xray result reporting. Keep the runs reliable and drive flaky tests down.
- Test the apps with real POS hardware: card terminals, receipt printers, barcode scanners and cash drawers. That includes failure cases like disconnects, timeouts, reconnects, cancelled payments and paper-out.
- Find ways to automate hardware-dependent flows (simulators, stubs, test modes) and know when a real device is still needed.
- Work closely with iOS and Android developers. Push for testability (e.g. accessibility identifiers), help write acceptance criteria and pair on hard-to-reproduce bugs.
- Own release verification for both apps and turn manual regression checklists into automated coverage.
- Write clear bug reports with logs, device details and exact steps to reproduce.
Current tech stack of the team:
current automation framework & language: TypeScript & Webdriver.io
Tooling: Java based
What you need to be successful in this role:
3+ years of hands-on mobile test automation on native iOS and Android apps.
Strong experience with Appium, ideally with WebdriverIO, including both the XCUITest and UiAutomator2 drivers.
Solid TypeScript/JavaScript skills: you write clean, maintainable test code with page objects and shared helpers. Not recorded scripts.
Solid CI/CD experience with GitHub Actions: you build and maintain workflows yourself, including runners, secrets, artifacts, reports and parameterised runs. You can work out why a run failed.
Experience running tests on real-device clouds, ideally Sauce Labs.
Practical experience testing apps that work with physical hardware over Bluetooth, USB or the network. Ideally POS hardware such as payment terminals, printers or scanners.
Comfortable with Xcode, Android Studio, adb and device logs. You can dig into a problem before handing it over.
An eye for edge cases and a habit of asking "what if this fails halfway?"
Good English. German is a plus.
NICE TO HAVE
Experience in payments, retail or restaurant POS, or other regulated domains (e.g. card-present payments, fiscal or TSE requirements in Germany/Austria)
Test reporting and management tools: Allure, Jira Xray
Enough Swift or Kotlin to read app code and suggest testability changes
What’s next?
Does it sound exciting? - Apply with your CV in English. Please don’t shy away if you don’t meet all the requirements! We’re looking forward to meeting you.
We will get back to you within 14 days of receiving your application.
The interview process includes a 30-minute intro call with a TA Partner, a 60 minute call with the hiring manager, take home assignment and a 45-minute call with a peer team member. Please note the process might alter depending on our team’s availability.
*Unzer is an equal employment opportunities workplace, and we commit to hiring regardless of race, sex, gender identification, sexual orientation, national origin, native language, religion, age, disability, marital status, citizenship, genetic information, pregnancy, or any other characteristic protected by law. Please refrain from including your picture and age with the application.
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